- Anaphyllopsis americana, Cyrtosperma americanum
- Brachycentrus americanus, Oligoplectrum americanum;Oligoplectrodes potanini Martynov, 1910;Brachycentrus similis Banks, 1907;Grannom
- Eleutherine bulbosa, Lagrimas de la virgen;Ixia americana;Sisyrinchium americanum
- Hetaerina americana, American rubyspot;Agrion americanum;Lestes basalis Say, 1839;Hetaerina californica Hagen, 1859;Hetaerina pseudamericana Walsh, 1863;Hetaerina texana Walsh, 1863;Hetaerina sclerata Walsh, 1863;American Rubyspot
- Hymenocallis littoralis, Beach spiderlily;Pancratium littorale;Pancratium americanum;Hymenocallis panamensis
- Hypnum lindbergii, Calliegonella lindbergii;Hypnum acuatum var americanum;Hypnum arcuatiforme;Hypnum arcuatum;Hypnum patientiae;Hypnum renauldii;Stereodon patientiae
- Leptodontium flexifolium, Bryum flexifolium;Leptodontium flexifolium var americanum;Leptodontium orcuttii;Zygodon gracilis var americanum
- Leptogium laceroides, Leptogium americanum
- Lethocerus americanus, Belostoma grandis americanum;Belostoma impressum Haldeman, 1854;Belostoma litigiosum Dufour, 1863;Belostoma obscurum Dufour, 1863;Belostoma americanum;Giant water bug
- Malacosoma americana, Eastern Tent Caterpillar Moth;Eastern Tent Caterpillar;Malacosoma americanum
- Ocimum canum, Ocimum americanum
- Orthotrichum pumilum, Orthotrichum affine var fallax;Orthotrichum brachytrichum;Orthotrichum fallax;Orthotrichum fallax var truncatulum;Orthotrichum pumilum var americanum;Orthotrichum pumilum var fallax;Orthotrichum schimperi;Orthotrichum schimperi var truncatulum;Orthotrichum tenellum var pumilum
- Solanum ptycanthum, West Indian nightshade;Black nightshade;Solanum americanum;Solanum ptychanthum
- Stenotaphrum secundatum, St Augustine Grass;Buffalo Grass;Ischaemum secundatum Walter;Stenotaphrum dimidiatum var secundatum Walter Domin;Stenotaphrum dimidiatum var secundum orth var Domin sensu Domin, K 1915;Stenotaphrum americanum Schrank;Diastemanthe platystachys Steud;St Augustine grass;Stenotaphrum glabrum var americanum
- Tortula acaulon, Microbryum floerkeanum var henrici;Phascum acaulon;Phascum cuspidatum;Phascum cuspidatum var americanum;Phascum cuspidatum var henrici;Phascum cuspidatum var piliferum;Phascum cuspidatum var schreberianum;Tortula acaulon var pilifera;Tortula acaulon var schreberiana;Tortula atherodes;Tortula atherodes var pilifera;Tortula atherodes var schreberiana
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