Flora of the Southeastern United States

Coleataenia abscissa (Swallen) LeBlond. Common name: Cutthroat Grass. Phenology: Jan-Dec. Habitat: 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. See Bridges and Orzell (1998) for more information about the community types of this species. Distribution: Endemic to central FL peninsula, also known from a few sites on the Atlantic Coastal Ridge.

ID notes: 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.

Origin/Endemic status: Endemic

Synonymy ⓘ: = FlGr, K4, POWO, Weakley et al (2011); = Coleataenia longifolia (Torr.) Soreng ssp. abscissa (Swallen) Soreng — Soreng (2010); = Panicum abscissum Swallen — HC, WH3; = Panicum rigidulum Bosc ex Nees ssp. abscissum (Swallen) Freckmann & Lelong — FNA25. Basionym: Panicum abscissum Swallen 1940

Links to other floras: = Panicum rigidulum ssp. abscissum - FNA25

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FACW

Heliophily ⓘ: 9