Melanthera nivea (Linnaeus) Small. Snowy Black-anthers, Snow Squarestem. Phen: Jun-Oct. Hab: Calcareous outcrops, sandy woodlands. Dist: E. SC south to s. FL, west to LA; also widespread in the West Indies, Mexico, Central America, and northern South America (Colombia, Ecuador, Peru, and Venezuela).

Origin/Endemic status: Native

Taxonomy Comments: Additional taxa have sometimes been recognized within what is treated here as a very broad M. nivea; they warrant additional study.

Synonymy: = FNA21, Il, K1, K3, K4, Mex, SE1, Tn, Franck et al (2021), Wagner & Robinson (2001); = n/a – C, F; > Melanthera aspera; > Melanthera aspera (Jacq.) Spreng. var. aspera – SFla, Parks (1973); > Melanthera aspera (Jacq.) Spreng. var. glabriuscula (Kuntze) J.C.Parks – Bah, V, Parks (1973); > Melanthera deltoidea Michx. – S; > Melanthera hastata Michx. – RAB, S; > Melanthera ligulata Small – S, Parks (1973); < Melanthera nivea (L.) Small – Fl7, WH3, WI; > Melanthera nivea (L.) Small – SFla, Parks (1973)

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