Cynodon radiatus Roth

Species

Angiosperms > Poales > Poaceae > Cynodon

Characteristics

Perennial, stoloniferous, widely spreading, without rhizomes. Culms slender, 20–50(–80) cm tall. Leaf sheaths glabrous or pilose at mouth; leaf blades broadly linear, 2.5–10(–15) cm, 3–6 mm wide, glaucous, glabrous, apex acute; ligule ca. 3 mm, membranous, ciliolate on upper edge. Racemes digitate, usually 4–8, 5–10 cm, flexuous, slightly drooping; spikelets overlapping by 1/3–1/2 their length. Spikelets 1.8–2.5 mm; rachilla extension ca. 1 mm, without reduced floret at apex; glumes lanceolate, about half as long as floret, 1-veined, keel scabrous, thickened; lower glume ca. 1 mm; upper glume 1–1.4 mm; lemma as long as spikelet, pilose along keel and lateral veins, hairs sometimes clavate, apex subacute; palea glabrous, keels smooth or rarely scaberulous. Anthers 0.5–0.7 mm. Caryopsis trigonous, laterally compressed. Fl. and fr. Jul–Nov. 2n = 36.
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Not rhizomatous. Culms erect, 1–2 mm wide, wiry; flowering culms 15–45 cm high. Leaves: basal sheaths usually glabrous; orifice glabrous or sometimes bearded; ligule a ciliolate membrane, 0.3–0.5 mm long; blade usually flat, 4–17 cm long, 3–6 mm wide, acute, bright pale green. Inflorescences digitate or rarely with branches whorled; branches 4–8, 4–9 cm long, flexible. Spikelets 1.6–2 (–2.2) mm long, disarticulating between the glumes; rachilla prolonged, terminating at a vestigial floret or naked. Glumes ±equal or unequal in length, 45–90% as long as the basal lemma, ±equal in width, lanceolate; lower glume 0.7–1.2 (–1.4) mm long; upper glume 1–1.4 (–1.9) mm long. Basal lemma 1.6–2 (–2.2) mm long; keel wingless; hairs extending the length of the keel and arising in the lower half on the submargins. Anthers 0.5–0.6 mm long, yellow or purple.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.2 - 0.65
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Most frequently found in woodlands of Eucalyptus, Callitris or Melaleuca, on disturbed sites, often in or near creeks,sometimes at rainforest margins, in a variety of soil types from sand to darkbrown loam. 
Light 7-9
Soil humidity 1-5
Soil texture 3-4
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

Cynodon radiatus world distribution map, present in Andorra, Australia, Bangladesh, China, Indonesia, Moldova (Republic of), Madagascar, Myanmar, Nepal, Pakistan, Philippines, Thailand, Taiwan, Province of China, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:397123-1
WFO ID wfo-0000861270
COL ID 339P7
BDTFX ID 20549
INPN ID 807282
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Cynodon arcuatus Cynodon leptochloides Cynodon radiatus Cynodon intermedius Digitaria radiata Cynodon dactylon subsp. arcuatus Cynodon dactylon var. intermedius Cynodon dactylon var. arcuatus