Thesium hystrix A.W.Hill

A rigid much-branched shrublet, with rigid tapered spine-tipped branchlets; branchlets sometimes flexuous, contracted at the base, coarsely and closely longitudinally wrinkled or closely grooved when dry, glabrous; leaves very small, more or less triangular, thick and coriaceous, slightly mucronate, glabrous; flowers solitary, short and sessile within the bracts; receptacle glabrous; bracts very small, broadly ovate, slightly mucronate, glabrous; bracteoles minute; perianth 3/4 lin. long; segments triangular-ovate, hooded, 1/3 lin. long, the margin and apex fringed with fairly long hairs; anthers exserted from the perianth-tube, 1/4 lin. long; filaments nearly as long as the anthers; style short, reaching to the base of the anthers, 1/8 lin. long; fruits ovoid-globose, nearly 2 lin. long, strongly 10-ribbed and glaucous between the ribs.