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| Kingdom Plantae |
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Betula X eastwoodiae Sarg. (pro sp.) – accepted – Eastwood's birch
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Crataegus X anomala Sarg. (pro sp.) – not accepted – anomalous hawthorn, Arnold hawthorn
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Crataegus X densiflora Sarg. (pro sp.) – not accepted – denseflower hawthorn
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Crataegus X hudsonica Sarg. (pro sp.) – accepted – Hudson hawthorn
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Crataegus X incaedua Sarg. (pro sp.) – accepted – hawthorn
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Crataegus X kennedyi Sarg. (pro sp.) – accepted – Kennedy's hawthorn
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Crataegus X kingstonensis Sarg. (pro sp.) – not accepted – Kingston's hawthorn
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Crataegus X laneyi Sarg. (pro sp.) – accepted – Laney's hawthorn
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Crataegus X lauta Sarg. (pro sp.) – accepted
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Crataegus X lettermanii Sarg. (pro sp.) – not accepted – Letterman's hawthorn
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Crataegus X maligna Sarg. (pro sp.) – accepted – hawthorn
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Crataegus X peckietta Sarg. (pro sp.) – accepted – Peck's hawthorn
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Crataegus X pilosa Sarg. (pro sp.) – accepted – pilose hawthorn
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Crataegus X puberis Sarg. (pro sp.) – accepted – hawthorn
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Crataegus X rubrocarnea Sarg. (pro sp.) – accepted – hawthorn
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Prunus X palmeri Sarg. (pro sp.) – accepted – Palmer's prunus |
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