Hyparrhenia gazensis Stapf

Species

Angiosperms > Poales > Poaceae > Hyparrhenia

Characteristics

Loosely tufted perennial; culms slender, 50–180 cm. high and up to 2 mm. diameter, weakly erect or geniculately ascending, sometimes sprawling.. Leaf-blades 8–20 cm. long, 2–5 mm. wide.. False panicle 10–35 cm. long, narrow, loose; spatheoles linear-lanceolate, 3–4 cm. long, the peduncles 1/2–3/4 as long; racemes 1–1.5 cm. long, 4–5-awned per pair, not deflexed; raceme-bases unequal, divergent, the upper (2–)2.5–3.5 mm. long, stiffly pilose with white hairs.. Homogamous pairs 1 at the base of the lower or both racemes.. Sessile spikelet 4.5–5 mm. long, sparsely hispidulous; callus cuneate, 0.8–1.5 mm. long; awn 2–3 cm. long, fulvously pubescent.. Pedicelled spikelet with a short mucro 1–2 mm. long.
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Loosely tufted perennial 500-1800 mm high; rhizomatous; culms slender. Leaf blade 80-200 x 2-5 mm. Raceme bases terete, unequal, upper raceme base (2.0-)2.5-3.5 mm long, homogamous spikelets 0-1 pair at base of upper raceme; raceme pairs with 4-5 awns. Sessile spikelet 4.0-5.5 mm long, white-hispidulous; awn 20-30 mm long; callus cuneate, 0.8-1.5 mm long. Pedicellate spikelet 5-6 mm long, glabrous, acute, muticous or with a short mucro 1-2 mm long; anther 1.7-2.3 mm long.
False panicle 10–35 cm long, narrow, lax; spatheoles 3–4 cm long, linear-lanceolate, glabrous, reddish-brown; peduncles 1/2–3/4 as long as the spatheoles, pilose above with white hairs; racemes 1–1.5 cm long, 4–5-awned per pair, laterally exserted, not or sometimes tardily deflexed; raceme-bases unequal, divergent, the superior (2)2.5–3.5 mm long, terete, stiffly pilose with white bulbous-based hairs, the articulation with the peduncle glabrous.
Perennial, rhizomatous and tufted (loosely), up to 1.8 m high. Leaf blades 80-200 mm long, 2-5 mm wide. Culms slender. Spikelets (sessile) 4.0-5.5 mm long (white-hispidulous, callus cuneate, 0.8-1.5 mm long). Raceme pairs with 4 or 5 awns 20-30 mm long; raceme bases terete, unequal, upper raceme base (2.0-)2.5-3.5 mm long, homogamous spikelets 0 or 1 pair at base of upper racemes.
Sessile spikelets 4.5–5 mm long; callus 0.8–1.5 mm long, cuneate, acute at the apex; inferior glume linear-oblong to lanceolate-oblong, sparsely hispidulous; awn 2–3 cm long, the column pubescent with fulvous hairs.
Pedicelled spikelets 5–6 mm long, linear-lanceolate, glabrous, terminating in a short mucro 1–2 mm long; callus absent; pedicel-tooth short, broadly triangular.
Loosely caespitose perennial; culms up to 180 cm high and up to 2 mm in diameter, weakly erect or geniculately ascending, sometimes sprawling.
Leaf sheaths glabrous, or pubescent above; leaf laminas 8–20 cm × 2–5 mm, glabrous or thinly pilose, long-acuminate at the apex.
Homogamous spikelets c. 5 mm long, narrowly lanceolate, a single pair at the base of the inferior or both racemes.
Life form perennial
Growth form
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.15 - 1.8
Root system -
Rooting depth (meter) -
Root diameter (meter) -
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
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Soil nutriment -
Hardiness (USDA) 9-12

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
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Germination treatment -
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Optimum temperature (C°) -
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Distribution

Hyparrhenia gazensis world distribution map, present in Kenya, Sudan, Tanzania, United Republic of, Uganda, South Africa, Zambia, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:405527-1
WFO ID wfo-0000875254
COL ID 3NMPJ
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Andropogon gazensis Cymbopogon gazensis Hyparrhenia snowdenii Hyparrhenia gazensis