Thesium pinifolium A.Dc.

Stem 15 ft. high, stout and woody, conspicuously ribbed, glabrous; branches rather crowded in the upper part of the stem, ascending or suberect, rather sharply ribbed, glabrous; leaves acicular, terete, obtuse or subobtuse slightly decurrent on the stem, those on the main stem 1-1 1/2 in. long, arcuate, those on the flowering branches shorter, glabrous; flowers subglomerate at the ends of the branches; cymes few-flowered; bracts linear, subobtuse, about 1/4 in. long, boat-shaped, sharply keeled, with a prominent midrib on the upper surface; peduncle adnate to the lower part of the bract but shorter; bracteoles as long as the flowers, similar to the bracts; perianth 1 lin. long; segments ovate, 3/4 lin. long, hooded, glabrous except on the incurved papillose edges; anthers exserted, 1/8 lin. long; style 1/2 lin. long, exceeding the anthers or reaching about to their middle; fruit ellipsoid, narrowed to both ends, capped by the persistent perianth, 1 1/2 lin. long, prominently 10-ribbed, 5 of the ribs more prominent than the others.