Eragrostis biflora Hack. ex Schinz

Species

Angiosperms > Poales > Poaceae > Eragrostis

Characteristics

Spikelets 1.5–2.5 × 0.5–1.2 mm, narrowly elliptic, becoming broadly ovate at maturity, laterally compressed (1)2–3-flowered, the lemmas disarticulating from below upwards, the rhachilla becoming fragile above; glumes subequal, 0.9–1.3 mm long, keeled, narrowly ovate to narrowly lanceolate in profile, scaberulous on the keel, otherwise glabrous, subacute to acute at the apex, the inferior reaching to about 2/3 or more the way along the adjacent lemma, the superior to about the middle; lemmas 1–1.5 mm long, keeled, ovate-elliptic in profile, membranous with distinct lateral nerves, scarcely divergent from the rhachilla, those of a pair (or group of three) without overlapping margins, the rhachilla visible between them, pallid to dark greyish-green, glabrous, subacute and often mucronate at the apex; palea persistent, glabrous on the flanks, the keels slender, wingless, smooth or scaberulous; anthers 3, 0.2–0.3 mm long.
More
Tufted annual to 700 mm high; culm eglandular. Leaf blade 90-300 x 1.5-8 mm. Inflorescence delicate, open, much branched; lowest branches usually whorled, axils glabrous; pedicels long, slender. Spikelet 1.5-2.5 x 0.5-1.2 mm, narrowly elliptic when young to broadly ovate when mature, florets 1-2(-3); rachilla persistent, becoming fragile in upper part, lemmas and/or paleas breaking up from base upwards; glumes subequal; lemma 1.0-1.5 mm long, keeled, lateral nerves not prominent, usually faint but visible near base; palea persistent, keels wingless, glabrous to scabrid; anthers 3, 0.2-0.3 mm long; caryopsis obovate.
Annual; up to 0.7 m high; tufted. Leaf blades up to 300 x 8 mm. Flowers: panicle open; delicate; much branched; with branches spreading away from main axis; pedicels long and slender; spikelets 1.5-2.5 x 0.5-1.2 mm; distant; spikelets narrowly elliptic when young to broadly ovate when mature; with 1 or 2(3) florets; rachilla persistent; becoming fragile in upper part; lemmas and/or paleae breaking up from base upwards; lemmas 1.0-1.5 mm long; palea keels glabrous to scabrid; anthers 3; 0.2-0.3 mm long.
Annual, tufted, up to 0.7 m high. Leaf blades up to 300 mm long, up to 8 mm wide. Spikelets 1.5-2.5 mm long, 0.5-1.2 mm wide. Inflorescence open, delicate, much-branched, pedicels long and slender; spikelets narrowly elliptic when young to broadly ovate when mature, with 1-2(-3) florets, rhachilla persistent, becoming fragile in upper part, lemmas and/or paleas breaking up from base upwards; lemma 1.0-1.5 mm long; palea keels glabrous to scabrid; anthers 3.0,2-0.3 mm long.
Panicle 16–30 cm long, narrowly ovate-elliptic, delicate and open, the spikelets evenly distributed on slender pedicels 1.5–5 mm long, the primary branches (or at least the lowermost) in whorls, terminating in a fertile spikelet, glabrous in the axils, eglandular.
Caespitose annual; culms up to 80 cm tall, erect, unbranched, glabrous at the nodes, eglandular; leaf sheaths glabrous or thinly pilose below; ligule a line of hairs; leaf laminas 9–30 cm × 1.5–5(8) mm, linear, flat or involute, glabrous, eglandular.
Caryopsis 0.6–0.7 mm long, obovate.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.7
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c4

Environment

Light -
Soil humidity 3-6
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

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

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Eragrostis biflora world distribution map, present in Angola, Botswana, Ethiopia, Namibia, South Africa, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:400855-1
WFO ID wfo-0000867440
COL ID 6G9V7
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Eragrostis biflora