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|  Kingdom Plantae | 
|   | 
Convolvulus sepium var. fraterniflorus Mack. & Bush – not accepted
 | 
|   | 
Dasistoma calycosa Mack. & Bush – not accepted
 | 
|   | 
Heuchera puberula Mack. & Bush – not accepted
 | 
|   | 
Hystrix elymoides Mack. & Bush – not accepted
 | 
|   | 
Iris foliosa Mack. & Bush – not accepted
 | 
|   | 
Lespedeza stimulata Mack. & Bush – not accepted
 | 
|   | 
Muhlenbergia polystachya Mack. & Bush – not accepted
 | 
|   | 
Onosmodium hispidissimum var. macrospermum Mack. & Bush – not accepted
 | 
|   | 
Onosmodium subsetosum Mack. & Bush – not accepted
 | 
|   | 
Physalis missouriensis Mack. & Bush – accepted – Missouri groundcherry
 | 
|   | 
Physalis subglabrata Mack. & Bush – not accepted – husk tomato, longleaf groundcherry, smooth groundcherry
 | 
|   | 
Portulaca neglecta Mack. & Bush – not accepted
 | 
|   | 
Sagittaria brevirostra Mack. & Bush – accepted – short-beak arrowhead, shortbeak arrowhead, midwestern arrowhead
 | 
|   | 
Senecio pseudotomentosus Mack. & Bush – not accepted
 | 
|   | 
Senecio semicordatus Mack. & Bush – not accepted
 | 
|   | 
Solidago longipetiolata Mack. & Bush – not accepted
 | 
|   | 
Xanthium inflexum Mack. & Bush – not accepted | 
        
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