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Taxon author: Swallen

ITIS records citing taxon author "Swallen"
 
 Kingdom Plantae
  Achnatherum acutum (Swallen) Valdés-Reyna & Barkworth -- accepted
  Achnatherum altum (Swallen) Hoge & Barkworth -- accepted
  Achnatherum bracteatum (Swallen) Valdés-Reyna & Barkworth -- accepted
  Achnatherum curvifolium (Swallen) Barkworth -- accepted -- Guadalupe needlegrass, Guadalupe ricegrass
  Achnatherum diegoense (Swallen) Barkworth -- accepted -- San Diego County needlegrass, San Diego needlegrass
  Achnatherum latiglume (Swallen) Barkworth -- accepted -- Sierra needlegrass
  Achnatherum lemmonii var. lemmonii (Swallen) Barkworth -- not accepted -- Lemmon needle grass, Lemmon's needlegrass
  Achnatherum lobatum (Swallen) Barkworth -- accepted -- little awn needlegrass, littleawn needlegrass
  Acostia Swallen -- accepted
  Acostia gracilis Swallen -- accepted
  Agrostis abietorum Swallen -- not accepted
  Agrostis arcta Swallen -- not accepted
  Agrostis aristiglumis Swallen -- not accepted -- Point Reyes bentgrass
  Agrostis boyacensis Swallen & García-Barr. -- accepted
  Agrostis exserta Swallen -- accepted
  Agrostis hooveri Swallen -- accepted -- Hoover's bentgrass
  Agrostis laxissima Swallen -- accepted
  Agrostis lehmannii Swallen -- accepted
  Agrostis scabra var. geminata (Trin.) Swallen -- not accepted
  Agrostis scabrifolia Swallen -- accepted
  Agrostis vesca Swallen -- not accepted
  Agrostis vinosa Swallen -- not accepted
  Amphibromus quadridentulus (Döll) Swallen -- accepted
  Amphibromus scabrivalvis (Trin.) Swallen -- accepted -- swamp wallaby grass
  Amphibromus scabrivalvis var. scabrivalvis (Trin.) Swallen -- accepted
  Andropogon acuminatus Swallen -- not accepted
  Andropogon campii Swallen -- not accepted
  Andropogon cordatus Swallen -- accepted
  Andropogon maderensis Swallen -- not accepted
  Andropogon niveus Swallen -- not accepted
  Andropogon rhizomatus Swallen -- not accepted
  Andropogon scabriglumis Swallen -- accepted
  Andropogon semitectus Swallen -- not accepted
  Andropogon sericatus Swallen -- not accepted
  Andropogon spadiceus Swallen -- not accepted -- honey bluestem
  Andropogon yucatanus Swallen -- not accepted
  Apochloa lutzii (Swallen) Zuloaga & Morrone -- accepted
  Apochloa sipapoense (Swallen) Zuloaga & Morrone -- accepted
  Apochloa steyermarkii (Swallen) Zuloaga & Morrone -- accepted
  Aristida planifolia Swallen -- not accepted
  Aristida rhizomophora Swallen -- accepted -- Florida threeawn
  Arthrostylidium spinosum Swallen -- not accepted
  Axonopus anomalus Swallen -- not accepted
  Axonopus arsenei Swallen -- accepted
  Axonopus caespitosus Swallen -- not accepted
  Axonopus ciliatifolius Swallen -- accepted
  Axonopus comatus (Mez) Swallen -- accepted
  Axonopus elongatus Swallen -- not accepted
  Axonopus erectus Swallen -- not accepted
  Axonopus flabelliformis Swallen -- accepted
  Axonopus flabelliformis var. flabelliformis Swallen -- not accepted
  Axonopus fockei (Mez) Swallen -- not accepted
  Axonopus kaietukensis Swallen -- not accepted
  Axonopus multipes Swallen -- not accepted
  Axonopus purpurellus Swallen -- not accepted
  Axonopus ramosus Swallen -- accepted
  Axonopus rhizomatosus Swallen -- not accepted
  Axonopus steyermarkii Swallen -- accepted
  Axonopus villosus Swallen -- accepted
  Bothriochloa campii (Swallen) de Wet -- accepted
  Bouteloua annua Swallen -- accepted
  Bouteloua chasei Swallen -- accepted
  Bouteloua distans Swallen -- accepted
  Bouteloua eriopoda var. eriostachya Swallen -- not accepted
  Bouteloua eriostachya (Swallen) Reeder -- accepted
  Bouteloua glandulosa (Cerv.) Swallen -- not accepted
  Bouteloua johnstonii Swallen -- accepted
  Bouteloua latifolia Swallen -- not accepted
  Bouteloua nervata Swallen -- accepted
  Bouteloua pedicellata Swallen -- accepted
  Bouteloua reflexa Swallen -- accepted
  Bouteloua varia (Swallen) Columbus -- accepted
  Bouteloua williamsii Swallen -- accepted
  Brachiaria albicoma (Swallen & García-Barr.) Zuloaga & Soderstr. -- not accepted
  Brachiaria oblita (Swallen) Tovar -- not accepted
  Bromopsis attenuata (Swallen) Holub -- not accepted
  Bromopsis densa (Swallen) Holub -- not accepted
  Bromopsis pinetorum (Swallen) Holub -- not accepted
  Bromus attenuatus Swallen -- accepted
  Bromus cernuus Swallen -- not accepted
  Bromus densus Swallen -- accepted
  Bromus meyeri Swallen -- accepted
  Bromus pinetorum Swallen -- not accepted
  Bromus pubescens var. laeviglumis (Scribn. ex Shear) Swallen -- not accepted
  Bromus purgans var. laeviglumis (Scribn. ex Shear) Swallen -- not accepted
  Buchlomimus nervatus (Swallen) Reeder, C. Reeder & Rzed. -- not accepted
  Bulbulus Swallen -- not accepted
  Bulbulus nervatus Swallen -- not accepted
  Calamagrostis boyacensis Swallen & García-Barr. -- accepted
  Calamagrostis brevipaleata Swallen -- not accepted
  Calamagrostis divergens Swallen -- accepted
  Calamagrostis insperata Swallen -- not accepted
  Calamagrostis involuta Swallen -- accepted
  Calamagrostis killipii Swallen -- accepted
  Calamagrostis naiguatensis Swallen -- not accepted
  Calamagrostis pinetorum Swallen -- accepted
  Calamagrostis pisinna Swallen -- accepted
  Calamagrostis porteri ssp. insperata (Swallen) C.W. Greene -- accepted -- Porter's reedgrass
  Calamagrostis reitzii Swallen -- accepted
  Calamagrostis scaberula Swallen -- accepted
  Calamagrostis scabriflora Swallen -- accepted
  Calamagrostis steyermarkii Swallen -- accepted
  Calamagrostis vulcanica Swallen -- accepted
  Cathestecum annuum Swallen -- not accepted
  Cathestecum brevifolium Swallen -- not accepted
  Cathestecum brevifolium var. brevifolium Swallen -- not accepted
  Cathestecum varium Swallen -- not accepted
  Centrochloa Swallen -- accepted
  Centrochloa singularis Swallen -- accepted
  Chaboissaea decumbens (Swallen) Reeder & C. Reeder -- not accepted
  Chloris aristata (Cerv.) Swallen -- not accepted
  Chloris brandegei (Vasey) Swallen -- not accepted
  Chloris mollis (Nees) Swallen -- not accepted
  Chondrosum chasei (Swallen) Clayton -- not accepted
  Chondrosum eriostachyum (Swallen) Clayton -- not accepted
  Chusquea angusta (Swallen) L.G. Clark -- accepted
  Chusquea longifolia Swallen -- accepted
  Chusquea mollis (Swallen) L.G. Clark -- accepted
  Chusquea sulcata Swallen -- accepted
  Chusquea tuberculosa Swallen -- accepted
  Coleataenia longifolia ssp. abscissa (Swallen) Soreng -- accepted
  Cortaderia parviflora Swallen -- not accepted
  Cortaderia planifolia Swallen -- accepted
  Cortaderia pungens Swallen -- accepted
  Cortaderia scabriflora Swallen -- not accepted
  Cortaderia vaginata Swallen -- accepted
  Crassipes Swallen -- not accepted
  Crassipes annuus Swallen -- not accepted
  Cryptochloa Swallen -- accepted
  Cryptochloa concinna (Hook. f.) Swallen -- accepted
  Cryptochloa granulifera Swallen -- not accepted
  Cryptochloa strictiflora (E. Fourn.) Swallen -- accepted
  Cryptochloa variana Swallen -- accepted
  Ctenium concissum Swallen -- accepted
  Ctenium plumosum (Hitchc.) Swallen -- accepted
  Danthonia charruana Swallen -- not accepted
  Danthonia dusenii var. charruana (Swallen) Roseng. & B.R. Arrill. -- not accepted
  Danthonia rhizomata Swallen -- accepted
  Danthonia secundiflora ssp. charruana (Swallen) Roseng., B.R. Arrill. & Izag. -- accepted
  Deschampsia mexicana Swallen -- not accepted
  Dichanthelium aequivaginatum (Swallen) Zuloaga -- accepted
  Dichanthelium hirstii (Swallen) Kartesz -- accepted -- Hirst's panicgrass
  Dichanthelium itatiaiae (Swallen) Zuloaga -- accepted
  Dichanthelium pinetorum (Swallen) LeBlond -- accepted
  Dichanthelium telmatum (Swallen) Zuloaga -- accepted
  Dichanthelium umbonulatum (Swallen) Davidse -- accepted
  Digitaria albicoma Swallen -- not accepted
  Digitaria arenicola (Swallen) Beetle -- accepted -- green sprangletop, sand crabgrass, sand witchgrass
  Digitaria cayoensis Swallen -- accepted
  Digitaria ciliata var. arenicola (Swallen) R.D. Webster -- not accepted
  Digitaria cognata var. arenicola (Swallen) R.D. Webster -- not accepted
  Digitaria diversiflora Swallen -- not accepted
  Digitaria glabriculmis Swallen -- not accepted
  Digitaria hirsuta Swallen -- not accepted
  Digitaria induta Swallen -- accepted
  Digitaria multiflora Swallen -- accepted
  Digitaria obtusa Swallen -- not accepted
  Digitaria parva Swallen -- accepted
  Digitaria patens (Swallen) Henrard -- accepted -- Texas cottontop
  Digitaria purpurea Swallen -- accepted
  Dissanthelium aequale Swallen & Tovar -- not accepted
  Dissanthelium breve Swallen & Tovar -- accepted
  Dissanthelium brevifolium Swallen & Tovar -- accepted
  Dissanthelium densum Swallen & Tovar -- not accepted
  Dissanthelium expansum Swallen & Tovar -- not accepted
  Dissanthelium laxifolium Swallen & Tovar -- accepted
  Dissanthelium longiligulatum Swallen & Tovar -- accepted
  Dissanthelium pygmaeum Swallen & Tovar -- accepted
  Dissanthelium rauhii Swallen & Tovar -- accepted
  Dissanthelium semitectum Swallen & Tovar -- accepted
  Echinolaena gracilis Swallen -- accepted
  Ectosperma Swallen -- not accepted
  Ectosperma alexandrae Swallen -- not accepted
  Eragrostis fragilis Swallen -- not accepted
  Eragrostis hirta var. longiramea (Swallen) Witherspoon -- accepted
  Eragrostis longiramea Swallen -- not accepted
  Eragrostis plurinodis Swallen ex Luces -- accepted
  Eragrostis silveana Swallen -- accepted -- Silveus' lovegrass
  Erianthus biaristatus (Hack.) Swallen -- not accepted
  Erianthus clandestinus Swallen -- not accepted
  Erianthus clandestinus Swallen ex L.B. Sm., Wassh. & R.M. Klein -- not accepted
  Erianthus glabrinodis (Hack.) Swallen -- not accepted
  Erianthus purpureus Swallen -- not accepted
  Eriochrysis glabrifolia Swallen -- not accepted
  Festuca breviglumis Swallen -- accepted
  Festuca chiriquensis Swallen -- accepted
  Festuca ligulata Swallen -- accepted -- Guadalupe fescue
  Festuca panda Swallen -- accepted
  Festuca parciflora Swallen -- accepted
  Festuca parciflora ssp. parciflora Swallen -- accepted
  Festuca pinetorum Swallen -- accepted
  Festuca reclinata Swallen -- accepted
  Glyceria cookei Swallen -- not accepted
  Gouinia barbata (Hack.) Swallen -- accepted
  Gouinia brasiliensis (S. Moore) Swallen -- accepted
  Gouinia cearensis (Ekman) Swallen -- accepted
  Gouinia gracilis Ekman ex Swallen -- accepted
  Gouinia guatemalensis (Hack.) Swallen -- not accepted
  Gouinia longiramea Swallen -- not accepted
  Gouinia papillosa Swallen -- accepted
  Gouinia paraguayensis var. tortuosa (Swallen) Türpe -- accepted
  Gouinia ramosa Swallen -- not accepted
  Gouinia tortuosa Swallen -- not accepted
  Guadua spinosa (Swallen) McClure -- not accepted
  Gymnopogon floridanus Swallen -- not accepted
  Hesperochloa kingii var. rabiosa (Piper) Swallen -- not accepted
  Ichnanthus acuminatus Swallen -- not accepted
  Ichnanthus altus Swallen -- not accepted
  Ichnanthus amplifolius Swallen -- not accepted
  Ichnanthus amplus Swallen -- not accepted
  Ichnanthus angustifolius Swallen -- not accepted
  Ichnanthus angustus Swallen -- not accepted
  Ichnanthus auriculatus Swallen -- not accepted
  Ichnanthus bacularius Swallen -- not accepted
  Ichnanthus brevivaginatus Swallen -- not accepted
  Ichnanthus camporum Swallen -- accepted
  Ichnanthus chaseae Swallen -- not accepted
  Ichnanthus congestus Swallen -- not accepted
  Ichnanthus duidensis Swallen -- not accepted
  Ichnanthus erectus Swallen -- not accepted
  Ichnanthus firmus Swallen -- not accepted
  Ichnanthus glaberrimus Swallen -- not accepted
  Ichnanthus goiasensis Swallen -- not accepted
  Ichnanthus gracilis Swallen -- not accepted
  Ichnanthus hispidus Swallen -- not accepted
  Ichnanthus indutus Swallen -- not accepted
  Ichnanthus lagotis (Trin.) Swallen -- not accepted
  Ichnanthus longifolius Swallen -- not accepted
  Ichnanthus longispiculus Swallen -- not accepted
  Ichnanthus neblinaensis Swallen -- not accepted
  Ichnanthus nervosus Swallen -- not accepted
  Ichnanthus nubigenus Swallen -- not accepted
  Ichnanthus pallidus Swallen -- not accepted
  Ichnanthus procurrens (Nees ex Trin.) Swallen -- accepted
  Ichnanthus procurrens var. procurrens (Nees ex Trin.) Swallen -- accepted
  Ichnanthus pubescens Swallen -- not accepted
  Ichnanthus reclinatus Swallen -- not accepted
  Ichnanthus reclivis Swallen -- not accepted
  Ichnanthus riparius Swallen -- not accepted
  Ichnanthus scaberrimus Swallen -- not accepted
  Ichnanthus serratus Swallen -- not accepted
  Ichnanthus silvestris Swallen -- not accepted
  Ichnanthus subinclusus Swallen -- not accepted
  Ichnanthus tectus Swallen -- accepted
  Ichnanthus vestitus Swallen -- not accepted
  Ichnanthus villosissimus Swallen -- not accepted
  Ichnanthus villosus Swallen -- not accepted
  Ichnanthus vimineus Swallen -- not accepted
  Imperata flexuosa Swallen -- not accepted
  Isachne ligulata Swallen -- accepted
  Isachne pubescens Swallen -- accepted
  Lasiacis acuminata Swallen -- not accepted
  Lasiacis glabra Swallen -- not accepted
  Lasiacis lancifolia Swallen -- not accepted
  Lasiacis linearis Swallen -- accepted
  Lasiacis longiligula Swallen -- not accepted
  Lasiacis lucida Swallen -- not accepted
  Lasiacis maxonii Swallen -- not accepted
  Lasiacis oaxacensis var. maxonii (Swallen) Davidse -- accepted
  Lasiacis papillosa Swallen -- not accepted
  Lasiacis ruscifolia var. velutina (Swallen) Davidse -- accepted
  Lasiacis velutina Swallen -- not accepted
  Leptoloma arenicola Swallen -- not accepted
  Leptoloma cognata var. arenicola (Swallen) Gould -- not accepted
  Leptoloma cognatum var. arenicola (Swallen) Gould -- not accepted
  Lorenzochloa erectifolia (Swallen) Reeder & C. Reeder -- not accepted
  Luziola brasiliensis (Trin.) Swallen -- not accepted
  Luziola caespitosa Swallen -- accepted
  Luziola divergens Swallen -- accepted
  Luziola fragilis Swallen -- accepted
  Luziola subintegra Swallen -- accepted
  Merostachys pauciflora Swallen -- accepted
  Mesosetum acuminatum Swallen -- not accepted
  Mesosetum aequiglume Swallen -- not accepted
  Mesosetum altum Swallen -- not accepted
  Mesosetum angustifolium (Swallen) Swallen -- not accepted
  Mesosetum annuum Swallen -- accepted
  Mesosetum arenarium Swallen -- accepted
  Mesosetum blakei Swallen -- accepted
  Mesosetum caudiculatum (Hack.) Swallen -- not accepted
  Mesosetum comatum Swallen -- accepted
  Mesosetum compressum Swallen -- accepted
  Mesosetum curtifolium Swallen -- not accepted
  Mesosetum elegans Swallen -- not accepted
  Mesosetum elytrochaetum (Hack.) Swallen -- accepted
  Mesosetum latifolium Swallen -- not accepted
  Mesosetum longifolium Swallen -- not accepted
  Mesosetum molle Swallen -- not accepted
  Mesosetum multicaule Swallen -- not accepted
  Mesosetum pubescens Swallen -- not accepted
  Mesosetum stoloniferum Swallen -- accepted
  Mesosetum tenuifolium Swallen -- not accepted
  Muehlenbergia annua (Vasey) Swallen -- not accepted
  Muehlenbergia ramulosa (Kunth) Swallen -- not accepted
  Muhlenbergia angustifolia Swallen -- not accepted
  Muhlenbergia annua (Vasey) Swallen -- accepted
  Muhlenbergia attenuata Swallen -- not accepted
  Muhlenbergia aurea Swallen -- accepted
  Muhlenbergia breviculmis Swallen -- not accepted
  Muhlenbergia brevivaginata Swallen -- accepted
  Muhlenbergia calcicola Swallen -- not accepted
  Muhlenbergia confusa (E. Fourn.) Swallen -- not accepted
  Muhlenbergia curvula Swallen -- not accepted
  Muhlenbergia decumbens Swallen -- accepted
  Muhlenbergia distans Swallen -- accepted
  Muhlenbergia erectifolia Swallen -- not accepted
  Muhlenbergia eriophylla Swallen -- accepted
  Muhlenbergia fragilis Swallen -- accepted -- annual muhly, delicate muhly
  Muhlenbergia hintonii Swallen -- accepted
  Muhlenbergia jaliscana Swallen -- accepted
  Muhlenbergia lucida Swallen -- accepted
  Muhlenbergia minutissima (Steud.) Swallen -- accepted -- annual muhly
  Muhlenbergia orophila Swallen -- accepted
  Muhlenbergia pubigluma Swallen -- accepted
  Muhlenbergia ramulosa (Kunth) Swallen -- accepted -- green muhly, muhly
  Muhlenbergia shepherdii (Vasey) Swallen -- accepted
  Muhlenbergia sinuosa Swallen -- accepted -- marshland muhly
  Muhlenbergia subaristata Swallen -- accepted
  Muhlenbergia vaginata Swallen -- accepted
  Muhlenbergia versicolor Swallen -- accepted
  Muhlenbergia villiflora var. villosa (Swallen) Morden -- accepted -- hairy muhly
  Muhlenbergia villosa Swallen -- not accepted -- hairy muhly
  Muhlenbergia X involuta Swallen (pro sp.) -- accepted -- canyon muhly, involuta muhly
  Myriocladus Swallen -- accepted
  Myriocladus affinis Swallen -- not accepted
  Myriocladus cardonae Swallen -- accepted
  Myriocladus churunensis Swallen -- accepted
  Myriocladus confertus Swallen -- not accepted
  Myriocladus distantiflorus Swallen -- accepted
  Myriocladus exsertus Swallen -- accepted
  Myriocladus gracilis Swallen -- not accepted
  Myriocladus grandifolius Swallen -- accepted
  Myriocladus longiramosus Swallen -- accepted
  Myriocladus maguirei Swallen -- not accepted
  Myriocladus neblinaensis Swallen -- accepted
  Myriocladus paludicola Swallen -- accepted
  Myriocladus paraquensis Swallen -- not accepted
  Myriocladus paruensis Swallen -- not accepted
  Myriocladus purpureus Swallen -- not accepted
  Myriocladus simplex Swallen -- accepted
  Myriocladus steyermarkii Swallen -- accepted
  Myriocladus variabilis Swallen -- not accepted
  Myriocladus virgatus Swallen -- accepted
  Myriocladus wurdackii Swallen -- not accepted
  Neurolepis angusta Swallen -- not accepted
  Neurolepis densiflora Swallen -- not accepted
  Neurolepis glomerata Swallen -- not accepted
  Neurolepis mollis Swallen -- not accepted
  Neurolepis nigra Swallen -- not accepted
  Ocellochloa chapadensis (Swallen) Zuloaga & Morrone -- accepted
  Ocellochloa irregularis (Swallen) Zuloaga & Morrone -- accepted
  Ocellochloa piauiensis (Swallen) Zuloaga & Morrone -- accepted
  Ochellochloa chapadensis (Swallen) Zuloaga & Morrone -- not accepted
  Ochellochloa irregularis (Swallen) Zuloaga & Morrone -- not accepted
  Ochellochloa piauiensis (Swallen) Zuloaga & Morrone -- not accepted
  Olyra maranonensis Swallen -- accepted
  Olyra taquara Swallen -- accepted
  Olyra wurdackii Swallen -- accepted
  Orcuttia fragilis Swallen -- not accepted
  Ortachne erectifolia (Swallen) Clayton -- accepted
  Oryza alta Swallen -- not accepted
  Otachyrium succisum (Swallen) Send. & Soderstr. -- accepted
  Panicum abscissum Swallen -- not accepted -- cutthroat grass
  Panicum aequivaginatum Swallen -- not accepted
  Panicum albicomum Swallen & García-Barr. -- not accepted
  Panicum albociliatum Swallen -- not accepted
  Panicum albospiculatum Swallen -- not accepted
  Panicum alcobense Swallen -- not accepted
  Panicum alsophilum Swallen -- not accepted
  Panicum angulosum Swallen -- not accepted
  Panicum appressifolium Swallen -- not accepted
  Panicum apricum Swallen -- not accepted
  Panicum arctum Swallen -- accepted
  Panicum auyanense Swallen -- not accepted
  Panicum bartlettii Swallen -- accepted
  Panicum blackii Swallen -- not accepted
  Panicum blakei Swallen -- not accepted
  Panicum breviramosum Swallen -- not accepted
  Panicum cayoense Swallen -- accepted
  Panicum chapadense Swallen -- not accepted
  Panicum churunense Swallen -- not accepted
  Panicum cowanii Swallen -- not accepted
  Panicum curvifolium Swallen -- not accepted
  Panicum deciduum Swallen -- accepted
  Panicum densifolium Swallen -- not accepted
  Panicum egleri Swallen -- not accepted
  Panicum fontanale Swallen -- not accepted
  Panicum fonticola Swallen -- accepted
  Panicum froesii Swallen -- not accepted
  Panicum furtivum Swallen -- not accepted
  Panicum furvum Swallen -- accepted
  Panicum goeldii Swallen -- not accepted
  Panicum gracilissimum Swallen -- not accepted
  Panicum graniticum Swallen -- not accepted
  Panicum guatemalense Swallen -- accepted
  Panicum hintonii Swallen -- not accepted
  Panicum hirstii Swallen -- not accepted -- Hirsts' panicgrass
  Panicum hispidifolium Swallen -- accepted
  Panicum hispidum Swallen -- not accepted
  Panicum hondurense Swallen -- not accepted
  Panicum ichunense Swallen -- accepted
  Panicum incumbens Swallen -- accepted
  Panicum infuscum Swallen -- not accepted
  Panicum inversum Swallen -- not accepted
  Panicum irregulare Swallen -- not accepted
  Panicum itatiaiae Swallen -- not accepted
  Panicum kavanayense Swallen -- not accepted
  Panicum kleinii Swallen -- not accepted
  Panicum kuhlmannii Swallen -- not accepted
  Panicum lithophilum Swallen -- not accepted -- Swallen's panicgrass
  Panicum longiculme Swallen -- not accepted
  Panicum longipedicellatum Swallen -- accepted
  Panicum lundellii Swallen -- not accepted
  Panicum lutzii Swallen -- not accepted
  Panicum machrisiana Swallen -- accepted
  Panicum maguirei Swallen -- not accepted
  Panicum manacalense Swallen -- not accepted
  Panicum manacalensis Swallen -- not accepted
  Panicum mauryi Swallen -- not accepted
  Panicum molliculmum Swallen -- not accepted
  Panicum multinodosum Swallen -- not accepted
  Panicum oblitum Swallen -- not accepted
  Panicum pandum Swallen -- accepted
  Panicum paucifolium Swallen -- not accepted
  Panicum petilum Swallen -- accepted
  Panicum petrense Swallen -- accepted
  Panicum philadelphicum ssp. lithophilum (Swallen) Freckmann & Lelong -- not accepted
  Panicum piauiense Swallen -- not accepted
  Panicum pilatum Swallen -- not accepted
  Panicum pinetorum Swallen -- not accepted
  Panicum pirineosense Swallen -- not accepted
  Panicum politii Swallen -- not accepted
  Panicum pompale Swallen -- not accepted
  Panicum ramiparum Swallen -- not accepted
  Panicum rigidulum ssp. abscissum (Swallen) Freckmann & Lelong -- not accepted
  Panicum rigidum Swallen -- not accepted
  Panicum rivale Swallen -- accepted
  Panicum semitectum Swallen -- not accepted
  Panicum semitectum Swallen -- not accepted
  Panicum sipapoense Swallen -- not accepted
  Panicum spissifolium Swallen -- not accepted
  Panicum steyermarkii Swallen -- not accepted
  Panicum subcordatum Swallen -- not accepted
  Panicum subinclusum Swallen -- not accepted
  Panicum sublaeve Swallen -- accepted
  Panicum succisum Swallen -- not accepted
  Panicum supernum Swallen -- not accepted
  Panicum tatei Swallen -- not accepted
  Panicum telmatum Swallen -- not accepted
  Panicum tiricaense Swallen -- not accepted
  Panicum tiricaoides Swallen -- not accepted
  Panicum transiens Swallen -- not accepted
  Panicum umbonulatum Swallen -- not accepted
  Panicum vannum Swallen -- not accepted
  Panicum variifolium Swallen -- not accepted
  Panicum venosum Swallen -- not accepted
  Panicum vigoratum Swallen -- not accepted
  Panicum vinaceum Swallen -- not accepted
  Panicum vinnulum Swallen -- not accepted
  Panicum wurdackii Swallen -- not accepted
  Panicum yavitaense Swallen -- accepted
  Pariana aurita Swallen -- accepted
  Pariana distans Swallen -- accepted
  Pariana ligulata Swallen -- accepted
  Pariana modesta Swallen -- accepted
  Pariana nervata Swallen -- accepted
  Pariana obtusa Swallen -- accepted
  Pariana ovalifolia Swallen -- accepted
  Pariana pallida Swallen -- accepted
  Pariana setosa Swallen -- accepted
  Pariana sociata Swallen -- accepted
  Pariana strigosa Swallen -- accepted
  Pariana velutina Swallen -- accepted
  Pariana violascens Swallen -- accepted
  Parodiella erectifolia (Swallen) Reeder & C. Reeder -- not accepted
  Paspalum album Swallen -- not accepted
  Paspalum ambustum Swallen -- not accepted
  Paspalum atratum Swallen -- accepted
  Paspalum aureolatum Swallen -- not accepted
  Paspalum axillare Swallen -- accepted
  Paspalum caperatum Swallen -- not accepted
  Paspalum chapadense Swallen -- not accepted
  Paspalum clandestinum Swallen -- accepted
  Paspalum compressifolium Swallen -- accepted
  Paspalum cordaense Swallen -- accepted
  Paspalum costellatum Swallen -- accepted
  Paspalum crispulum Swallen -- accepted
  Paspalum crustarium Swallen -- accepted
  Paspalum dasytrichium Dusén ex Swallen -- accepted
  Paspalum dasytrichium var. dasytrichium Dusén ex Swallen -- not accepted
  Paspalum delicatum Swallen -- accepted
  Paspalum diamantinum Swallen -- not accepted
  Paspalum eitenii Swallen -- not accepted
  Paspalum erectifolium Swallen -- not accepted
  Paspalum fessum Swallen -- not accepted
  Paspalum formosulum Swallen -- not accepted
  Paspalum formosum Swallen -- accepted
  Paspalum froesianum Swallen -- not accepted
  Paspalum goeldii Swallen -- not accepted
  Paspalum guaricense Swallen -- accepted
  Paspalum haughtii Swallen -- not accepted
  Paspalum hispidum Swallen -- accepted
  Paspalum humigenum Swallen -- not accepted
  Paspalum indutum Swallen -- not accepted
  Paspalum intonsum Swallen -- not accepted
  Paspalum involutum Swallen -- not accepted
  Paspalum lacustre Chase ex Swallen -- accepted
  Paspalum latipes Swallen -- accepted
  Paspalum lucidulum Swallen -- not accepted
  Paspalum luticola Swallen -- not accepted
  Paspalum macedoi Swallen -- not accepted
  Paspalum mollifolium Swallen -- not accepted
  Paspalum morulum Swallen -- not accepted
  Paspalum nitidum Swallen -- not accepted
  Paspalum oteroi Swallen -- accepted
  Paspalum pallens Swallen -- accepted
  Paspalum paludosum Swallen -- accepted
  Paspalum pannuceum Swallen -- not accepted
  Paspalum paranaense Swallen -- not accepted
  Paspalum paucifolium Swallen -- accepted
  Paspalum petrosum Swallen -- accepted
  Paspalum piligerum Swallen -- not accepted
  Paspalum pisinnum Swallen -- accepted
  Paspalum planiusculum Swallen -- not accepted
  Paspalum pontanalis Swallen -- accepted
  Paspalum ramosum Swallen -- not accepted
  Paspalum redondense Swallen -- accepted
  Paspalum rigens Swallen -- not accepted
  Paspalum schultesii Swallen -- accepted
  Paspalum sericatum Swallen -- not accepted
  Paspalum setosum (Swallen) S. Denham -- accepted
  Paspalum spissum Swallen -- accepted
  Paspalum swallenii Chase ex Swallen -- not accepted
  Paspalum telmatum Swallen -- accepted
  Paspalum tenuifolium Swallen -- not accepted
  Paspalum texanum Swallen -- not accepted
  Paspalum trinii Swallen -- accepted
  Paspalum validum Swallen -- accepted
  Paspalum vescum Swallen -- not accepted
  Paspalum viale Swallen -- not accepted
  Peniculus Swallen -- not accepted
  Peniculus angustifolius Swallen -- not accepted
  Pentarrhaphis annua Swallen -- not accepted
  Pharus longifolius Swallen -- not accepted
  Phippsia andersonii (Swallen) Á. Löve & D. Löve -- not accepted
  Phippsia borealis (Swallen) Á. Löve & D. Löve -- not accepted
  Phippsia borealis ssp. borealis (Swallen) Á. Löve & D. Löve -- not accepted
  Piresia Swallen -- accepted
  Piresia goeldii Swallen -- accepted
  Piresia sympodica (Döll) Swallen -- accepted
  Poa fibrata Swallen -- not accepted
  Poa filiculmis Swallen -- not accepted
  Poa mulleri Swallen -- accepted
  Poa petrosa Swallen -- accepted
  Poa reitzii Swallen -- accepted
  Poa sharpii Swallen -- accepted
  Poa tacanae Swallen -- accepted
  Poa venosa Swallen -- accepted
  Poa X fibrata Swallen -- not accepted -- Lassen County bluegrass
  Puccinellia andersoni Swallen -- not accepted
  Puccinellia andersonii Swallen -- accepted -- Anderson's alkaligrass
  Puccinellia borealis Swallen -- accepted
  Puccinellia borealis ssp. borealis Swallen -- not accepted
  Puccinellia glabra Swallen -- not accepted
  Puccinellia grandis Swallen -- not accepted
  Puccinellia hultenii Swallen -- not accepted -- Hulten's alkaligrass
  Puccinellia triflora Swallen -- not accepted
  Raddiella Swallen -- accepted
  Raddiella malmeana (Ekman) Swallen -- accepted
  Raddiella molliculma (Swallen) C.E. Calderón & Soderstr. -- accepted
  Raddiella nana (Döll) Swallen -- not accepted
  Raddiella truncata Swallen -- not accepted
  Reitzia Swallen -- accepted
  Reitzia smithii Swallen -- accepted
  Sacciolepis pungens Swallen -- not accepted
  Schizachne purpurascens (Torr.) Swallen -- accepted -- false melic, false melic grass
  Schizachne purpurascens f. purpurascens (Torr.) Swallen -- not accepted
  Schizachne purpurascens ssp. purpurascens (Torr.) Swallen -- accepted
  Schizachne purpurascens var. purpurascens (Torr.) Swallen -- not accepted
  Schizachyrium niveum (Swallen) Gould -- accepted -- pinescrub bluestem
  Schizachyrium rhizomatum (Swallen) Gould -- accepted -- Florida little bluestem
  Schizachyrium semitectum (Swallen) Reeder -- accepted
  Schizachyrium sericatum (Swallen) Gould -- accepted -- silky bluestem
  Schizachyrium spadiceum (Swallen) Wipff -- not accepted -- honey bluestem
  Setaria variifolia (Swallen) Davidse -- accepted
  Setaria variifolium (Swallen) Beetle -- not accepted
  Sorengia longifolia ssp. abscissa (Swallen) Zuloaga & Morrone -- not accepted
  Sorghastrum amplum Swallen -- not accepted
  Sorghastrum brunneum Swallen -- accepted
  Sorghastrum chasae Swallen -- accepted
  Sorghastrum flexuosum Swallen -- not accepted
  Sorghastrum rigidifolium Swallen -- not accepted
  Sorghastrum viride Swallen -- accepted
  Sporobolus bogotensis Swallen & García-Barr. -- accepted
  Sporobolus camporum Swallen -- accepted
  Sporobolus patens Swallen -- not accepted
  Sporobolus pulvinatus Swallen -- not accepted
  Sporobolus silveanus Swallen -- accepted -- Silveus' dropseed
  Sporobolus spiciformis Swallen -- accepted
  Sporobolus splendens Swallen -- accepted
  Stipa acuta Swallen -- not accepted
  Stipa alta Swallen -- not accepted
  Stipa bracteata Swallen -- not accepted
  Stipa curvifolia Swallen -- not accepted
  Stipa diegoensis Swallen -- not accepted
  Stipa latiglumis Swallen -- not accepted
  Stipa linearis Swallen -- not accepted
  Stipa lobata Swallen -- not accepted
  Swallenia alexandrae (Swallen) Soderstr. & H.F. Decker -- accepted -- eureka dune grass, Eureka dunegrass
  Thrasya axillaris (Swallen) A.G. Burm. ex Judz. -- not accepted
  Thrasya ciliatifolia Swallen -- not accepted
  Thrasya gracilis Swallen -- not accepted
  Thrasya guianensis Swallen -- not accepted
  Thrasya reticulata Swallen -- not accepted
  Thrasya setosa Swallen -- not accepted
  Trachypogon densus Swallen -- not accepted
  Trachypogon parviflorus Swallen -- not accepted
  Trachypogon ramosus Swallen -- not accepted
  Trachypogon rigidifolius Swallen -- not accepted
  Trichachne affinis Swallen -- not accepted
  Trichachne patens Swallen -- not accepted
  Trichachne sericea Swallen -- not accepted
  Trichoneura elegans Swallen -- accepted -- Silveus' grass
  Trisetum altum Swallen -- not accepted
  Trisetum angustum Swallen -- accepted
  Trisetum foliosum Swallen -- accepted
  Trisetum mexicanum (Swallen) S.D. Koch -- accepted
  Tuctoria fragilis (Swallen) Reeder -- accepted
  Urochloa albicoma (Swallen & García-Barr.) Morrone & Zuloaga -- accepted
  Urochloa oblita (Swallen) Morrone & Zuloaga -- accepted
  Urochloa venosa (Swallen) Morrone & Zuloaga -- accepted
  Zeugites capillaris (Hitchc.) Swallen -- accepted
  Zeugites hackelii Swallen -- accepted
  Zeugites panamensis Swallen -- accepted
  Zizaniopsis killipii Swallen -- accepted
   

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