Thesium subnudum Sond.

Stems and branches elongated, very slender, finely sulcate, glabrous, almost leafless in the upper parts; with a few lower leaves long and acicular, 3/4-2 in. long, 1/3-1/2 lin. thick, subterete, glabrous; flowers in rather slender and often elongated terminal spikes; bracts linear or linear-lanceolate, acute, about as long as the flowers, keeled; bracteoles similar to the bracts but shorter; perianth 3/4-1 1/4 lin. long, with a ring of hairs in the throat; segments linear-lanceolate, acute, hooded, 3/4-1 lin. long, with an apical beard of few stout hairs and hairy margins; anthers exserted, at the base of the perianth-segments, 1/4 lin. long; stigma sessile; fruits ovoid-globose, 2 Iin. long, subconspicuously 10-ribbed, very slightly reticulate between the ribs.