Psilotum nudum (Linnaeus) Palisot de Beauvois. Whiskfern. Phen: Apr-Sep. Hab: Moist bottomland forests, strand swamps, maritime forests, rockland hammocks, wet hammocks, on soil, stumps, and tree bases, along building foundations (where introduced). Dist: Ne. NC south to s. FL, west to s. AR and e. TX, disjunct (and apparently native) in ne. NC (Perry & Musselman 1994), rarely naturalized around buildings in c. NC, c. SC, and elsewhere; also in sw. United States and in the tropics and subtropics of Central and South America, Africa, and Asia.

Origin/Endemic status: Native

Synonymy: = Ar, Bah, ETx1, Fl2, FNA2, K1, K3, K4, Meso1, RAB, S13, Sf, SFla, Tx, TxFerns, WH3, Lin et al (2013); = n/a – C

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FAC
• Eastern Mountains and Piedmont: FACU
• Great Plains: FACW

Heliophily: 3