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Perennial with somewhat woody root-stock. Stems climbing or decumbent, (0.3-)0.5-1.0(-1 ,2) m long, often much branched, mostly with white spreading hairs at least on angles. Leaves in whorls of (7-)8-10, 1-nerved, (12-)15-20(-22) x (0.6-)0.8-4(-5) mm, linear to linear-lanceolate or oblanceolate, with a whitish mucro at apex, narrowed to base; both surfaces, lower surface or at least midrib below with white ± straight spreading hairs, (strongly) reflexed margins with closely set coarse recurved prickles. Inflorescence broadly to narrowly pyramidal, cymes many-flowered, ultimate branches with 3-1 tiny linear to lanceolate bracts; peduncles 2-3 mm long, pedicels 1-2.5(-3) mm long, ± filiform, hairy, strongly divaricate in fruit. Flowers: corolla 1.8-3.5(-4) mm in diam., usually somewhat hairy outside, bright yellow, creamy yellow, greenish yellow or greenish, lobes much longer than wide, acute; stamens a little less than half as long as lobes; ovary c. 0.4-0.6 mm long. Fruit (densely) covered with straight white spreading hairs, rarely subglabrous; mericarps subglobose to slightly reniform, each (0.7-)0.8-1(-1.2) mm in diam.; often only one mericarp developed.
Climbing or decumbent, perennial herb, 0.6-2.0 m high. Leaves in whorls of 7-10, linear to linear-lanceolate or oblanceolate, with whitish mucro at apex, pubescent both sides, with white, spreading hairs, margins reflexed with coarse, recurved prickles. Inflorescence broadly to narrowly pyramidal, ebracteate; pedicels up to 3 mm long; peduncles up to 3 mm long. Corolla up to 4 mm in diam., bright yellow to greenish, pubescent outside; stamens less than half as long as lobes. Ovary up to 0.6 mm long. Flowering time Dec. Fruit densely covered with straight white hairs; mericarps subglobose to reniform, up to 1.2 mm in diam.
Decumbent or climbing, perennial herb. Stems with white, spreading hairs, at least on angles. Leaves in whorls of 7-10; blade linear to narrowly ovate or obovate, up to 22 mm long, sessile, both surfaces or at least midrib below with white, straight, spreading hairs, margins with densely set, recurved prickles. Flowers: inflorescence many-flowered, peduncles and pedicels hairy; corolla 4-merous, bright yellow, creamy yellow, greenish yellow or greenish; Jan.-Mar. Fruit with mericarps densely covered with straight, spreading, white hairs.
Decumbent or climbing perennial herb. Stems with white spreading hairs, at least on angles. Leaves in whorls of (7)8-10, up to 20(-22) mm long, linear to linear-lanceolate or oblanceolate, both surfaces or at least midrib below with white straight spreading hairs, margins with densely set recurved prickles. Inflorescence many-flowered, peduncles and pedicels hairy. Mericarps densely covered with straight spreading white hairs. Flowers bright yellow, creamy yellow, greenish yellow or greenish.
