Digitaria bicornis (Lam.) Roem. & Schult.

Asian crabgrass (en)

Species

Angiosperms > Poales > Poaceae > Digitaria

Characteristics

Annual. culms decumbent, rooting at lower nodes, 30–60 cm tall. Leaf sheaths glabrous or lower sheaths papillose-pilose; leaf blades linear, 2.5–15 × 0.2–0.9 mm, usually scabrid on both surfaces, rarely sparsely pilose; ligule 1–3.5 mm. Inflorescence digitate or subdigitate; racemes 2–5, 4–14 cm; spikelets paired, imbricate; rachis triquetrous, ca. 1 mm wide, winged. Spikelets lanceolate, ca. 3 mm, those of a pair usually different; lower spikelet glabrous, upper spikelet pubescent; lower glume very small, almost absent or up to 0.4 mm, triangular or bifid, veinless; upper glume lanceolate, ca. 2/3 length of spikelet, 3-veined, pilose; lower lemma as long as spikelet, 7-veined, lower spikelet with equidistant veins, upper spikelet with wider glabrous interspaces on either side of midvein, lateral veins crowded near margins, rows of silky hairs between lateral veins, usually also setose, the hairs spreading halo-like at maturity; upper lemma yellowish, slightly shorter than spikelet. Fl. and fr. May–Sep. 2n = 54, 72.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.25 - 0.53
Root system -
Rooting depth (meter) -
Root diameter (meter) 0.2
Flower color -
Blooming months -
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway

Environment

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

Usage

Uses animal food environmental use 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 bicornis world distribution map, present in Åland Islands, Andorra, Bangladesh, Bahamas, Bolivia (Plurinational State of), Brazil, China, Costa Rica, Cuba, Cayman Islands, Dominica, Ecuador, Fiji, Georgia, Guatemala, Honduras, Haiti, Indonesia, Jamaica, Japan, Lao People's Democratic Republic, Libya, Moldova (Republic of), Madagascar, Myanmar, Mauritania, Mauritius, Nicaragua, Nepal, Nauru, Panama, Philippines, Puerto Rico, Paraguay, Réunion, Thailand, Uruguay, United States of America, Venezuela (Bolivarian Republic of), Viet Nam, and Samoa

Identifiers

LSID urn:lsid:ipni.org:names:1218147-2
WFO ID wfo-0000863756
COL ID 363CF
BDTFX ID -
INPN ID 629556
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Digitaria sanguinalis f. commutata Digitaria bicornis Panicum adpressum Panicum barbatum Panicum biforme Panicum macrostachyum Paspalum bicorne Syntherisma barbata Digitaria commutata Digitaria diversiflora Digitaria queenslandica Panicum commutatum Digitaria barbata Digitaria rottleri Panicum appressum Panicum bicorne Panicum ciliare Panicum glaucescens Panicum neesii Digitaria barbulata Digitaria biformis Digitaria bicornis subsp. gamblei Digitaria biformis subsp. desvauxii Digitaria corymbosa subsp. marattensis Digitaria nuda subsp. senegalensis Digitaria setigera subsp. marattensis Panicum aegyptiacum var. blepharanthum Panicum sanguinale var. barcaldinense Panicum sanguinale var. biforme Panicum sanguinale var. blepharanthum Paspalum sanguinale var. commutatum Digitaria biformis var. biformis Digitaria corymbosa subsp. marathensis Digitaria setigera subsp. marathensis