Botrypus virginianus (Linnaeus) Michaux. Rattlesnake Fern, Sang-find. Phen: Apr-Jun. Hab: In a wide range of fairly dry, mesic, and wet forests, cove forests, especially in nutrient-rich, moist bottomlands and slopes. Dist: NL (Newfoundland) and BC south to n. peninsular FL and CA, and Mexico south through Central America and n. South America; West Indies; Asia; Australia; scattered in Europe.

Origin/Endemic status: Native

Taxonomy Comments: Botrypus virginianus as currently defined (with a semicosmopolitan distribution in Eurasia, North America, Central America, South America, West Indies, and Australia) is a complex of semi-cryptic species, not yet well-understood or recognized.

Synonymy ⓘ: = Il, K3, K4, Tn, Va, Zhang et al (2020); = Botrychium virginianum (L.) Sw. – Ar, C, ETx1, Fl1, FNA2, G, GrPl, K1, Meso1, NE, NY, Pa, RAB, Tat, Tx, TxFerns, W, WH3, WV, Lin et al (2013); = Osmundopteris virginiana (L.) Small – S13, Sf; > Botrychium virginianum (L.) Sw. var. europaeum Ångstr. – F; > Botrychium virginianum (L.) Sw. var. virginianum – F, Mo1

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FACU
• Eastern Mountains and Piedmont: FACU
• Great Plains: FACU
• Midwest: FACU
• Northcentral & Northeast: FACU

Heliophily ⓘ: 4