Digitaria comifera Pilg.

Species

Angiosperms > Poales > Poaceae > Digitaria

Characteristics

Tufted annual; culms 30–80 cm. high.. Leaf-blades 4–10 cm. long, 2–5 mm. wide.. Inflorescence of 2–7 subdigitate racemes; racemes 3–15 cm. long, the spikelets in clusters of 3–5 on a winged rhachis with sharply angular midrib.. Spikelets elliptic-oblong, 2.2–2.7 mm. long; lower glume a little membranous scale 0.2 mm. long, truncate or emarginate; upper glume ± 3/4 as long as the spikelet, 3-nerved, pubescent with clavate hairs; lower lemma as long as the spikelet, 7-nerved, the lateral nerves thickened, close together, ± accrescent or sometimes encrusted with white warts, the interspaces flanking the midrib hyaline and translucent (the brown colour of the fruit showing through), glabrous except for a few clavate hairs near the tip, or with scattered glistening bristles on the nerves, or rarely the nerves stiffly villous with long spreading bristles; fruit narrowly ovate, dorsally compressed, dark brown.
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Inferior lemma as long as the spikelet, oblong-lanceolate with recurved margins, centrally sulcate, 5(7)-nerved, hyaline, basally and apically appressed hairy, sometimes with conspicuous lateral swellings and bristlen hairs.
Leaf laminae (2)5–10 × 0.1–0.6 cm., linear, flat or sometimes involute, scaberulous on both sides, densely hairy near the ligule, scabrous along the margin.
Superior glume c. 2/3 of the spikelet, oblong-triangular, 3(5)-nerved, hyaline, appressed hairy, hairs capitate apiculate.
Pedicels 3–4-nate, 0.2–2.5 mm. long, terete to subtriangular, scaberulous, much broadened at the apex, without coronula.
Inflorescence composed of 2–4(6) racemes, 4–14(20) cm. long, solitary along a short common axis.
Superior lemma as long as the spikelet, oblong-lanceolate, apiculate, dark brown.
Rhachis triquetrous, winged, up to 0.7 mm. broad, smooth, with scabrous margins.
Culms 15–60 cm., erect or ascending, glabrous, nodes dark, glabrous.
Inferior glume very short, bilobed, nerveless and hyaline.
Ligule 0.5–1.5 mm. long, rim-like, conspicuously ciliate.
An annual with loosely caespitose or solitary culms.
Spikelets 2.0–2.9 mm. long, oblong-lanceolate.
Leaf sheaths glabrous to loosely hairy.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3 - 0.8
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

Uses gene source
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

Digitaria comifera world distribution map, present in Angola, Burkina Faso, Mozambique, Namibia, Tanzania, United Republic of, Uganda, Zambia, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:398715-1
WFO ID wfo-0000863833
COL ID 363DY
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Digitaria lunularis Digitaria comifera