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Dwarf shrub, decumbent or ± erect, 0.1-0.6 m high; much branched, densely to sparsely spiny, leafy. Leaves spathulate, apiculate, clustered. Flowers axillary or on reduced side shoots, longer than leaves. Calyx shortly 5-lobed. Corolla tubular, with short lobes, dark blue to violet or mauve, with centre darker, sometimes with dark spots or striae, throat sometimes white. Flowering time Apr.-Dec., mostly Oct.
Erect or decumbent dwarf shrub up to 400 mm tall, much-branched. Branches densely spiny to sparsely so. Leaves linear-spathulate, (2-)5-11 x 0.75-1.25 mm, alternate but often clustered on small branches. Calyx subdensely glandular-pilose, strongly nerved, especially in fruit. Flowers bluish violet, darker at centre.
Leaves (2)5–11 x 0.75–1.25 mm., alternate but often clustered on small branches, linear-spathulate with small apiculus, narrowing towards sessile base, fleshy, young leaves minutely glandular-pilose, denser so towards base, glabrescent with age.
Capsule 6–7 x 4.5–7 mm., broadly oblong to square, laterally compressed, subtruncate-emarginate, deep median depression on both surfaces, pubescent at apex and in depression.
Erect or decumbent undershrub up to c. 40 cm. tall, much branched; branches densely spiny to sparsely so, woody, subglabrous, minutely glandular-pilose when young, leafy.
Corolla bluish violet, darker at centre; tube 10–12 mm. long, narrow base within calyx, broader above, shortly glandular-pilose without; lobes subcircular.
Calyx 5–9 mm. long, with lobes 2.0–2.5(4) mm. long, lanceolate, acute, subdensely glandular-pilose, strongly nerved especially in fruit.
Flowers sessile to subsessile, axillary or on much reduced lateral shoots.
Anthers minutely pubescent, oblong-reniform.
Seeds closely minutely tuberculate, grey.
