Resembles subsp. angustifolium vegetatively except that the culms are
often taller and more slender. Panicle branches ascending, not appearing
1-sided. Spikelets 2.9-3.6 mm, fusiform, bases strongly attenuate, apices
pointed or beaked, lower glumes attached 0.3-0.5 mm below the upper glumes.
Dichanthelium aciculare subsp. fusiforme grows in sandy pine or
oak savannahs. It tends to replace subsp. angustifolium from southern Florida through Central America and the Antilles.