Coleataenia rigidula (Bosc ex Nees) LeBlond ssp. condensa (Nash) LeBlond. Common name: Dense Panic Grass. Phenology: Sep-Oct. Habitat: Marsh, meadows, low wood, ditches, stream and pond shores, freshwater tidal shores. Distribution: Coastal Plain south from se. MA to FL, west to se. TX and AR; disjunct in the West Indies.

ID notes: Usually readily identified by its tall stature and compact inflorescence, somewhat resembling a large Hymenachne hemitomon, with which it occasionally occurs. See note under C. anceps ssp. rhizomata.

Origin/Endemic status: Native

Synonymy ⓘ: = K4, Va, Weakley et al (2011); = Coleataenia condensa (Nash) Mohlenbr. — Il; = Panicum agrostoides Spreng. var. condensum (Nash) Fernald — F, RAB, Tat; = Panicum condensum Nash — HC, S; = Panicum rigidulum Bosc ex Nees var. condensum (Nash) Mohlenbr.; < Coleataenia longifolia (Torr.) Soreng ssp. rigidula (Bosc ex Nees) Soreng — Soreng (2010); < Coleataenia rigidula (Bosc ex Nees) LeBlond — FlGr; < Panicum agrostoides Spreng. — G; < Panicum rigidulum Bosc ex Nees — Bah, C, GW1, Pa, Tx, WH3; < Panicum rigidulum Bosc ex Nees ssp. rigidulum — FNA25; < Panicum rigidulum Bosc ex Nees var. rigidulum — Lelong (1986); < Sorengia longifolia (Torr.) Zuloaga & Morrone ssp. rigidula (Bosc ex Nees) Zuloaga & Morrone — Zuloaga, Scataglini, & Morrone (2010); < Sorengia rigidula (Bosc ex Nees) Zuloaga & Morrone, illegitimate. Basionym: Panicum condensum Nash 1903

Links to other floras: < Panicum rigidulum ssp. rigidulum - FNA25

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FACW (taxonomic split from wetland indicator species)
• Eastern Mountains and Piedmont: FACW (taxonomic split from wetland indicator species)
• Great Plains: FACW (taxonomic split from wetland indicator species)
• Midwest: FACW (taxonomic split from wetland indicator species)
• Northcentral & Northeast: FACW (taxonomic split from wetland indicator species)

Heliophily ⓘ: 7