Lycopodiella prostrata (R.M. Harper) Cranfill.
All pairwise combinations of sympatric species form fertile hybrids (only L. inundata and L. prostrata are entirely allopatric and not known to hybridize). The following hybrids should be expected where the parents grow together.
Phen: Jul-Sep. Hab: Pine savannas, wet pine flatwoods, seepages, bogs, wet prairies. Dist: A Southeastern Coastal Plain endemic: se. NC south to c. FL and west to AR and e. TX, with scattered occurrences disjunct inland (as in n. GA, n. AL, and c. AR).
Origin/Endemic status: Endemic
Synonymy: = Ar, ETx1, Fl1, FNA2, K1, K3, K4, TxFerns, WH3; = Lycopodium alopecuroides L. var. pinnatum Chapm. – Tx; = Lycopodium inundatum L. var. pinnatum Chapm.; = Lycopodium prostratum R.M.Harper – C, S13, Sf; < Lycopodium alopecuroides L. – RAB