Dichanthelium ravenelii, commonly known as Ravenel's witchgrass, is a perennial graminoid in the family Poaceae native to the United States.
Dichanthelium ravenelii is characterized by prominent basal leaf rosettes and occasional branching from nodes above the base. It produces both spring and fall foliage, with stems reaching 25âÂÂ60 cm in height. The nodes are densely bearded, and the stem internodes are finely hairy or slightly rough. Leaf blades are up to 12 cm long and 2.5âÂÂ19 mm wide, glabrous above and softly hairy below, with scabrous, ciliate margins and heart-shaped, hairy bases. Sheaths are covered with soft hairs, ligules are densely ciliate and 3âÂÂ5 mm long, and the collars are also densely pubescent. The inflorescence is a broad panicle (6âÂÂ7 cm long, 5âÂÂ6 cm wide) with short-hairy branches and rachis. Spikelets are obovoid to broadly ellipsoid and measure 3.8âÂÂ4.2 mm long, with hairy glumes and lemmas. The fertile floret is smooth, yellowish to brownish when mature, and either nerveless or faintly nerved. Grains are broadly ellipsoid to nearly round, 1.2âÂÂ2 mm long, and yellowish or purplish.
Dichanthelium ravenelii is found from New Jersey south to Florida, west to eastern Texas, and north to Iowa. It grows in dry sandy or rocky thin woods and openings and sometimes in moist soils.