Digitaria didactyla Willd.

Crabgrass (en)

Species

Angiosperms > Poales > Poaceae > Digitaria

Characteristics

Weakly tufted perennial 150-300 mm high; stoloniferous or with knotty rhizomes, mat forming; culms may be branched and rooting at lower nodes. Leaf blade 25-50 x 1.0-1.8 mm, ligule 0.5-0.8 mm long. Inflorescence digitate, of 2-4 racemes 30-65(100) mm long; rachis triquetrous, winged, glabrous, margins scaberulous; pedicel triangular, glabrous with scaberulous margins; spikelets paired. Spikelet (2.0)2.5-2.8 mm long; lower glume short, 0.2-0.5 mm long, triangular-ovate, usually truncate, membranous; upper glume shorter than spikelet, partly exposing upper lemma, 3-nerved, pubescent between nerves; internode absent; lower lemma as long as spikelet, 7-nerved, nerves smooth to scaberulous towards apex, two marginal tufts of hairs present; upper lemma yellow to pale brown or purple tinged; anthers 1.0-1.3 mm long.
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Perennial, weakly tufted or stoloniferous (and mat-forming), up to 300 mm tall. Rhizomes knotty. Leaf blades 25-50 mm long, 1.0-1.8 mm wide. Culms sometimes branched and rooted at lower nodes. Spikelets 2.5-2.8 mm long, 0.8 mm wide. Racemes 2-4, digitate, 30-65 mm long.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.15 - 0.3
Root system rhizome
Rooting depth (meter) 1.5
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c4

Environment

Light -
Soil humidity -
Soil texture 5-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

Uses animal food environmental use fodder gene source medicinal ornamental
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°) 25 - 35
Size -
Vigor -
Productivity -

Images

Digitaria didactyla unspecified picture

Distribution

Digitaria didactyla world distribution map, present in Cook Islands, Fiji, Indonesia, Madagascar, Mozambique, Mauritius, Puerto Rico, Réunion, Suriname, eSwatini, Seychelles, Tonga, Viet Nam, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:398753-1
WFO ID wfo-0000863880
COL ID 6D6LT
BDTFX ID -
INPN ID 446298
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Digitaria didactyla Digitaria swazilandensis Panicum subtile Digitaria caespitosa Digitaria camusiana Digitaria peninsulae Digitaria truncata Panicum didactylum Panicum bicorne Digitaria didactyla var. decalvata Digitaria didactyla var. peninsulae Panicum commutatum var. didactylum Panicum sanguinale var. bicorne Panicum sanguinale var. brevispicatum Paspalum sanguinale var. didactylum Digitaria didactyla var. penisula