Coleataenia abscissa (Swallen) LeBlond. Cutthroat Grass. Phen: Jan-Dec. Hab: Most frequent in pineland seepage slopes, moist flatwoods, and depressions, where often the dominant herbaceous plant; also occasionally in dry sandy sites. Most often associated with wet Pinus densa savannas and seepage slopes, where it is often the dominant ground-layer species. Dist: Endemic to central FL peninsula, also known from a few sites on the Atlantic Coastal Ridge.

Origin/Endemic status: Endemic

Other Comments: The narrow blade base, broad and auricled sheath summit, and minute (0.3 mm) membranous ligule quickly identify this plant. It is also often a conspicuous and dominant species in wet Pinus densa savannas of c. and s. FL, flowering profusely and soon after fire. See Bridges and Orzell (1998) for more information about the community types of this species.

Synonymy: = FlGr, K3, K4, Weakley et al (2011); = Coleataenia longifolia (Torr.) Soreng ssp. abscissa (Swallen) Soreng – Soreng (2010); = Panicum abscissum Swallen – HC, K1, WH3; = Panicum rigidulum Bosc ex Nees ssp. abscissum (Swallen) Freckmann & Lelong – FNA25

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FACW

Heliophily: 9