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Information Many stemmed shrub or small tree with slender ascending branches to 5 m high. Bark pale to dark yellowish- or greyish-brown, often oily in appearance, peeling in long strips; young branchlets reddish-brown to purplish-black, sometimes flaking, with some scattered inconspicuous dark sessile glands, often glutinous, glabrous or sub-glabrous. Stipules spinescent, in pairs, 0,4-7,7 cm long, straight or ± deflexed, sometimes slightly enlarged and swollen, whitish, glabrous; other prickles absent. Leaves: petiole (0,3)0,8-1,5(2,4) cm long, adaxial gland usually absent; rhachis (0)0,7-2,4(4,7) cm long, glabrous or sub-glabrous, with a small sessile to shortly stipitate gland at the junction of each pinna pair, otherwise eglandular or with a few scattered inconspicuous glands; pinnae (1)2-4(6) pairs; rhachillae 0,6-2(3,3) cm long, glabrous or subglabrous; leaflets 3-6 pairs per pinna, (2,4)4-7(10) X 1,5-3(4,5) mm, linear-oblong to ovate- or obovate-oblong, margins entire, eglandular or almost so, glabrous, lateral nerves inconspicuous beneath, apex ± spinulose-mucronate. Inflor­escences capitate, on axillary peduncles, solitary or fascicled along shoots of the current or previous season. Flowers bright yellow, sessile; peduncles (1,3)2-3(3,9) cm long, glabrous or subglabrous, glandular; involucel at or above the middle of the peduncle, 2-4 mm long. Calyx glabrous or subglabrous, tube 1,2-1,8 mm long, lobes up to 0,6 mm long. Corolla glabrous, tube 1,5-2,5 mm long, lobes up to 0,7 mm long, often reflexed. Stamen-filaments free, up to 4,5 mm long; anthers with a deciduous apical gland. Ovary shortly stipitate, up to 1,8 mm long, glabrous. Pods pale to dark yellowish-or reddish-brown, 1,5-3,6(6,5) X 0,4-0,9 cm, slightly to strongly falcate, somewhat torulose, subcoriaceous, venose, longitudi­nally dehiscent, eglandular or with few scattered glands, slightly glutinous, glabrous. Seeds olive-green to olive-brown, 5-8 x 3,5-6 mm, elliptic, compressed; areole 3-5 X 2,5-3mm.

Information Small tree, or sometimes a shrub, 1·5-5 m. high; bark peeling on the stems; young branchlets with some scattered inconspicuous dark sessile glands, otherwise glabrous. Stipules spinescent, up to 6 cm. long, whitish, sometimes ± deflexed; “ant-galls” and other prickles absent. Leaves with a small sessile to shortly stipitate gland at the junction of each of the 1-6 pairs of pinnae; petiole and rhachides otherwise eglandular or only with a few small scattered inconspicuous glands; leaflets 3-6 pairs, 3-10 x 1·5-4·5 mm., glabrous, entire, eglandular or almost so, ± spinulose-mucronate at the apex; lateral nerves invisible beneath. Flowers golden-yellow, in axillary pedunculate heads 7-10 mm. in diam. scattered along shoots of the current or previous season; involucel 2/3-5/6-way up the peduncle, 2·5-4 mm. long. Calyx 1·5-2 mm. long, glabrous or subglabrous. Corolla 2·5 mm. long, glabrous outside. Pods dehiscent, 2-3·5 x 0·6-0·8 cm., falcate, ± constricted (sometimes only slightly) between the seeds, eglandular or almost so. Seeds olive-green to olive-brown, c. 6-7 x 4·5-6 mm., elliptic, compressed; areole 3-4 x 2·5-3 mm.

Information Slender shrub, often several stemmed, or small slender tree with short ascending branches up to 3 m high. Bark grey- to yellowish- or reddish-brown, sometimes flaking to reveal a yellowish inner layer; young branchlets grey- or reddish-brown to purplish, sometimes flaking minutely, glabrous except for scattered conspicuous reddish sessile pustular glands, often gluti­nous. Stipules spinescent, in pairs, 0,6-7,4 cm long, straight or slightly deflexed, slender, whitish, glabrous; other prickles absent. Leaves: petiole 0,3-1,9 cm long, glabrous or subglabrous, adaxial gland absent; rhachis 0-1,8(4,4) cm long, glabrous or subglabrous, often with a small sessile to shortly stipitate gland at the junction of each pinna pair, otherwise with small scattered glands; pinnae 1-3(5) pairs; rhachillae 0,6-2,9 cm long, glabrous, usually with small scattered glands; leaflets 3-7(9) pairs per pinna, (2)4-9(13) X (1)1,5-5,1 mm, lanceolate to obovate-oblong or broadly obovate, glabrous, margins entire, eglandular or with few very inconspicuous glands towards the apex, lateral nerves ± spinulose-mu

Information  Erect to climbing shrub to 2 m high; branches purplish brown greyish, terete, smooth or lined, sometimes peeling, glabrous; spines 1– 3 mm long, curved downwards, also on the terminal branches. Cladodes in fascicles of 4– 25(– 35), flexible, straight or bent, 15– 30 mm long, flattened, angled, sometimes forming grooves on the upper side. Flowers in fascicles of (2– )3– 6, axillary or terminal; bracts ovate, ± 1 mm long, membranous; pedicel 4– 10 mm long, articulated at the middleor below. Tepals white, ± equal, 3– 4 mm long; stamens shorter than the perianth, anthers yellow; ovary 3-locular with 5 ovules in each locule; style ± 1 mm long with 3-‑ branched stigma. Berry red, 4– 5 mm in diameter, 1-seeded.