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| Synonyms: |
Aristida angolensis C. E. Hubb. Aristida vanderystii sensu Stent & Rattray, non De Wild |
| Common names: | |
| Frequency: | |
| Status: | Native |
| Description: |
Perennial up to 1-2 m. high, densely caespitose, with numerous intervaginal innovations. Culms erect, c. 2 mm. in diam., simple, very firm, solid, terete, glabrous, striate. Leaf-sheaths lax, smooth, often somewhat glossy, estriate in the lower part, finely puberulous and striate upwards. Ligule a dense rim of short cilia; auricles barbate. Leaf-laminae up to 35 x 0·2-0·4 cm., pilose at the base, densely scaberulous above, finely puberulous below. Panicle up to 40 cm. long, rigid, erect, narrow, slightly contracted, with few spikelets; axis nearly glabrous, striate, compressed, branches solitary or 2-nate, smooth or nearly smooth, bearing 1-few spikelets towards the ends. Spikelets pale-brown to pale-green. Glumes subequal, narrowly linear-lanceolate, chartaceous below, with a membranous acute apex; the inferior 2·5-3·3 cm. long, 5-nerved; the superior c. 2·5 cm. long, 3-nerved. Lemma 1·8-2·2 cm. long (excluding callus and awns), linear, coriaceous, glabrous, very finely scaberulous, margins membranous and involute in the lower part; callus 3·5-4mm. long, elongate, acute, densely and shortly barbate; column absent; awns 3, subequal, 7·5-10 cm. long, scaberulous, flattened and slightly grooved on the inner surface. Palea c. 3 mm. long, oblong. Caryopsis 9 mm. long, linear, dorso-ventrally compressed, grooved, dark-brown. |
| Type location: |
Angola |
| Notes: | |
| Derivation of specific name: | angolensis: of Angola |
| Habitat: | In woodlands and burnt places in woodlands, usually on sandy soils |
| Altitude range: | |
| Flowering time: | |
| Worldwide distribution: | Angola, north-western south-western Africa, Botswana, Namibia, Zambia, Zimbabwe |
| Zambian distribution (Flora Zambesiaca): | B,S |
| Zambian distribution (Provinces): | S,W |
| Growth form(s): | |
| Endemic status: | |
| Red data list status: | |
| Insects associated with this species: | |
| Spot characters: | Display spot characters for this species |
| Literature: |
Launert, E. (1971). Poaceae Flora Zambesiaca 10(1) Pages 95 - 97. (Includes a picture). Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 109. Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 144. |
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