Thesium sonderianum Schltr.

A rather stout more or less dichotomously branched shrub; branches rather densely leafy, ribbed, glabrous; leaves often all towards one side of the branch, linear, acutely mucronate, rigid, recurved, 2-3 lin. long, about 1/2 lin. broad, with a fairly prominent midrib on both surfaces or rather sharply keeled below, slightly scabridulous on the margins and keel; flowers in rather dense thick more or less oblong spikes; bracts linear or linear-lanceolate, acute, shorter than the flowers, with membranous rather jagged or scabrous margins; bracteoles as long as or nearly as long as the bracts and rather thinner and narrower, otherwise similar; perianth 2 1/4-2 3/4 lin. long; segments linear-lanceolate, subacute, 1 1/2 lin. long, hooded, bearded inside anthers 1/2 lin. long, on short filaments, partly exserted from tube; style 3/4-1 lin. long, reaching to the middle of the anthers; fruit ovoid-ellipsoid, 5 lin. long including the long cylindric persistent perianth, prominently 5-ribbed with much less conspicuous intermediate ribs, reticulate.