Justicia exigua [family ACANTHACEAE]

Herbarium
South African National Biodiversity Institute, Compton Herbarium, Cape Town (SAM)
Collection
Flora of Southern Africa
Resource Type
Reference Sources
Entry From
Flora of South Africa, (2003) Author: Dr J.P. Roux
Names
Justicia exigua [family ACANTHACEAE]
Common names
J. matammensis sensu Immelman: 41 (1986a) p.p., non (Schweinf.) Oliv. J. anselliana sensu Immelman p.p. (1986c, 1989a, 1990a, 1992), non (Nees) T. Anderson, excl. syn. J. matammensis and some Transvaal specimens.
Information
Annual herb. Stems erect or decumbent, pubescent to densely pilose, denser and cottony at nodes, often with sand grains stuck to hairs. Leaves sparsely pilose, hairs denser on margin and veins, narrowly to broadly lanceolate, sometimes elliptic, 12^4-6 x 4-17 mm, apex acute or obtuse, base cuneate; petiole 3-11 mm long. Inflorescence as for J. anagalloides (no. 20) but usually 2 per node, one of each pair with a pair of reduced leaves near base, peduncles 5-23 mm long, with (2)3 or 4(-7) flowers near top. Corolla ± 4 mm long, white with maroon lines on palate. Pollen 2-porate, 22-29 urn long, sexine areolate. Capsule 4-seeded, broadly lanceolate, delicate, glabrous or with short hairs confined to apex, (3.5-)4.0-5.0(-6.0) mm long.
Use
23. Justicia exigua S. Moore in Journal of Botany, British and Foreign, London 38: 204 (1900); Immelman: t. 1932 (1986c) p.p. as to illustration and part of description and distribution; Graham: 598 (1988); Ensermu: 71 (1990). Type: Zimbabwe (Rhodesia), Bulawayo, 1898, Rand 389 (BM, holo.!).
Range
In southern Africa it occurs in northern Namibia, northern and southeastern Botswana and in the northwestern and northern central Transvaal, where it does not overlap with the very similar J. matammensis (no. 22). Recorded by Ensermu (1990) from two disjunct areas, one in East Africa from the Sudan to Rwanda, and the other in southwestern and southern central Africa from Angola to Mozambique and as far south as the Transvaal. Occurs in a wide variety of habitats, especially woodlands and disturbed areas. Description and map taken from PRE specimens only; for fuller description, see Ensermu (1990). Map 24.
Justicia exigua [family ACANTHACEAE]
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