Coleataenia anceps (Michaux) Soreng ssp. rhizomata (A.S. Hitchcock & Chase) Soreng. Phen: Jul-Oct. Hab: Moist to dry sandy or loamy pinelands, maritime forests, ditches. Dist: E. MD south to s. FL, west to e. TX, on the Coastal Plain, and rarely inland.
Origin/Endemic status: Endemic
Other Comments: See note under ssp. anceps. Robust plants collected without basal portion can resemble C. rigidula ssp. condensa. Sheaths in ssp. rhizomata are sparsely to densely villous, especially near the margin, while those of ssp. condensa are glabrous to appressed pubescent distally. The first glume in C. anceps ssp. rhizomata is 1/3-1/2 as long as the spikelet, and in C. rigidula ssp. condensa ½-2/3 as long as the spikelet.
Synonymy: = Va, Soreng (2010), Weakley et al (2011); = Panicum anceps Michx. ssp. rhizomatum (Hitchc. & Chase) Freckmann & Lelong – FNA25, Tn; = Panicum anceps Michx. var. rhizomatum (Hitchc. & Chase) Fernald – F, G, RAB, Lelong (1986); = Panicum rhizomatum Hitchc. & Chase – HC, S; = Sorengia anceps (Michx.) Zuloaga & Morrone ssp. rhizomata (Hitchc. & Chase) Zuloaga & Morrone – Zuloaga, Scataglini, & Morrone (2010); < Coleataenia anceps (Michx.) Soreng – FlGr, K3, K4; < Panicum anceps Michx. – C, ETx1, GW1, K1, NcTx, Tx, WH3