Thesium capitellatum A.Dc.

Shrubby, about 1 ft. high, much-branched; branches ascending, somewhat angular, glabrous; leaves linear or linear-lanceolate, acute or subacute, slightly curved, 2-3 lin. long, concave on the upper surface, rigid, fleshy, glabrous; flowers few in small dense terminal heads; bracts lanceolate, acute, keeled, fleshy, as long as the flowers, with slightly scabrous membranous greenish margins, becoming quite black with age; bracteoles a little smaller than the bracts; perianth tubular, fleshy, 1 lin. long, with conspicuous external glands; segments ovate, subacute, fleshy, 1/2 lin. long, with a dense apical beard; anthers inserted in or at the base of the tube, 1/6 lin. long; stigma sessile or subsessile, or about 1/10 lin. long and reaching to the base of the anthers; fruits ovoid-ellipsoid, 2-2 1/2 lin. long, prominently 10-ribbed, finely reticulate between the ribs.