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Shrub, up to 3 m high. Branches spiny. Leaves with blade ovate to subcordate-ovate, 5-30 x 5-20 mm, discolorous, sparsely hairy to glabrous; stipules triangular, pubescent. Flowers: inflorescence axillary, 1-or 2-flowered, subsessile to pedunculate; corolla 4-5 mm long, tube longer than limb, throat glabrous, greenish or yellowish; Sep.-Jan. Fruit subglobose, 5-7 mm long.
A shrub. It grows 3 m high. The branches are slender. The leaves are well spaced and in twos or threes. There are slender spines 1.5 cm long in the axils of some leaves. The leaf blade is oval but square at the base and narrowing to the tip. Leaves are 4 cm long by 2.5 cm wide. The flowers occur singly with a slender stalk 1.5 cm long. The flowers are bell shaped.
Small tree or shrub, up to 3 m high. Branches spiny. Leaves ovate to subcordate-ovate, discolorous, sparsely hairy to glabrous. Inflorescence axillary, 1-or 2-flowered, subsessile to pedunculate. Tube of corolla longer than limb, throat glabrous. Flowers greenish or yellowish.
Thorny shrub to 4 m. Leaves opposite, small, ovate, thinly hairy and ciliate. Flowers 1 or 2 in leaf axils, cream-coloured to greenish.
Fol. brevissime petiolatis cordato-ovatis utrinque adpresse pilosis margine ciliatis; pedunc. pilosis 1-floris.
