Home | > | List of families | > | Poaceae | > | Aristida | > | denudata |
Synonyms: | |
Common names: | |
Frequency: | |
Status: | Native |
Description: |
Perennial, c. 50 cm. high, caespitose, with well-developed rhizomes, bearing fascicles of culms. Culms erect, slender, simple, glabrous, smooth, with a very long uppermost internode, 1-2-noded; nodes glabrous, smooth. Leaf-sheaths glabrous, smooth, usually shorter than the internodes. Ligule an obsolete minutely ciliolate rim; auricles of the innovations usually long-barbate, those of the culm-leaves dark-coloured, usually glabrescent; collar glabrous or minutely pubescent. Leaf-laminae 10 x 0·1-0·2 cm., flat, acuminate, scabrous or hirtellous above, glabrous, smooth beneath, those of the innovations short, convolute, setaceous, acute. Panicle 5-12 cm. long (excluding awns), lax, with glabrous, smooth rhachis and branches; branches 2-nate, terete, the lower being 4 cm. long, naked in the lower 1/2, few-flowered, the upper bearing 1-2 spikelets on long filiform, smooth pedicels. Glumes unequal, 1-nerved, glabrous, smooth, acuminate, smooth on the keels, the inferior 8-8·5 mm. long; the superior 10-11 mm. long. Lemma 6·5-7·5 mm. long, glabrous, smooth in the lower part, with rows of minute scabridules towards the apex, having sometimes 1-2 additional awn-like or setiform appendages; callus 0·5 mm. long, obtuse or nearly truncate, shortly barbate; beak or column absent; awns subequal, scaberulous, at first erect, soon divaricately deflexed, the central one 3-3·5 cm. long, more strongly deflexed than the lateral ones which are 2·5-3·0 cm. long; articulation absent. |
Notes: | |
Derivation of specific name: | |
Habitat: | In shallow depressions, and seasonally inundated swamps |
Altitude range: | |
Flowering time: | |
Worldwide distribution: | Malawi, Zambia, Zimbabwe. Not known from elsewhere |
Malawi distribution: | S |
Growth form(s): | |
Endemic status: | |
Red data list status: | |
Insects associated with this species: | |
Spot characters: | Display spot characters for this species |
Literature: |
Chapano, C. & Mugarisanwa, N.H. (2003). Plants of the Matobo District National Herbarium and Botanic Garden, Zimbabwe Page 4. Launert, E. (1971). Poaceae Flora Zambesiaca 10(1) Pages 100 - 101. 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 100. |
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