Bryodesma arenicola (Underwood) Soják ssp. riddellii (Van Eseltine) Škoda. Riddell’s Spikemoss. Phen: Jan-Dec. Hab: Dry sands (longleaf pine sandhills, etc.), granite outcrops, sandstone outcrops, Altamaha grit glades. Dist: E. and c. GA west to AR, s. OK, and c. TX.
Origin/Endemic status: Native
Syn: = Selaginella arenicola ssp. riddellii – Ar, ETx1, FNA2, K1; = Selaginella corallina – K3, K4, TxFerns; = Selaginella riddellii – Tx
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