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Oplismenus compositus P.Beauv.

Running mountaingrass (en), Oplismène des bois (fr), Oplismène composé (fr)

Species

Angiosperms > Poales > Poaceae > Oplismenus

Characteristics

Perennial. Culms stoloniferous, straggling, ascending to 20–80 cm. Leaf sheaths glabrous, pilose or tuberculate-hairy; leaf blades lanceolate to ovate-lanceolate, 3–20 × 0.5–3 cm, subglabrous to tuberculate-hairy, base usually oblique. Inflorescence axis 5–15 cm, glabrous to tuberculate-hairy; racemes 3–6, 2–6 cm, ascending to erect. Spikelets in 7–14 widely spaced, sometimes patent pairs, lanceolate, glabrous to thinly pilose; glumes herbaceous, awned, the awns stout, green or purple, viscid; lower glume awn 5–10 mm; upper glume awn to 3 mm or occasionally absent; lower lemma subcoriaceous, 7–9-veined, acute or with a stout 0.3–1 mm mucro; upper lemma subcoriaceous, ca. 2.5 mm, smooth. Fl. and fr. Sep–Nov. 2n = 54, 72*.
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Perennial with rambling culms 15–150 cm. long.. Leaf-blades narrowly lanceolate to narrowly ovate, 2–15 cm. long, 8–25 mm. wide.. Inflorescence 5–25 cm. long, the lower raceme 2.5–11 cm. long, its rhachis glabrous to loosely pilose, the spikelet pairs ± distant.. Spikelets lanceolate, 2.5–4 mm. long, glabrous to pubescent; glumes with smooth viscid awns, the longest in each pair of spikelets 3–10 mm.. Fig. 129.
Spikelets 2.5–4 mm. long, glabrous to pubescent; awns smooth and sticky, the longest in each pair of spikelets 3–10 mm.
Rambling perennial with lanceolate to narrowly ovate leaf laminae.
Racemes up to 11 cm. long, the spikelet pairs distant.
Culms 15–150 cm. long.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.23 - 1.05
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light 4-9
Soil humidity 3-7
Soil texture 3-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) 6-12

Usage

Uses animal food medicinal
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 -

Images

Leaf

Oplismenus compositus leaf picture by Herwig Mees (cc-by-sa)
Oplismenus compositus leaf picture by Maarten Vanhove (cc-by-sa)
Oplismenus compositus leaf picture by Karina Monserrat Pérez Ramírez (cc-by-sa)

Distribution

Oplismenus compositus world distribution map, present in Åland Islands, Andorra, Burkina Faso, Bangladesh, Belize, Bermuda, Brazil, China, Cook Islands, Comoros, Costa Rica, Cuba, Dominica, Ecuador, Eritrea, Ethiopia, Georgia, Guatemala, Honduras, Haiti, Indonesia, Iran (Islamic Republic of), Jamaica, Japan, Kenya, Lao People's Democratic Republic, Moldova (Republic of), Madagascar, Maldives, Myanmar, Mozambique, Mauritius, Nicaragua, Nepal, Oman, Pakistan, Panama, Peru, Philippines, Puerto Rico, Korea (Democratic People's Republic of), Paraguay, Réunion, Sudan, Seychelles, Thailand, Tonga, Taiwan, Province of China, Tanzania, United Republic of, Uganda, Uruguay, United States of America, Viet Nam, Yemen, Zambia, and Zimbabwe

Conservation status

Oplismenus compositus threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:409823-1
WFO ID wfo-0000882040
COL ID 74S49
BDTFX ID 119534
INPN ID 446689
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Oplismenus compositus f. glabratus Hippagrostis setaria Panicum aristatum Oplismenus compositus Oplismenus coreanus Oplismenus elatior Oplismenus formosanus Oplismenus indicus Oplismenus jacquinii Oplismenus owatarii Oplismenus patens Oplismenus pratensis Oplismenus rariflorus Oplismenus setarius Oplismenus thiebautii Orthopogon compositus Orthopogon sylvaticus Panicum longeracemosum Panicum parciflorum Panicum pratense Panicum setarium Panicum undatum Panicum unguinosum Pollinia jacquinii Echinochloa aristata Echinochloa lanceolata Oplismenus junghuhnii Oplismenus lanceolatus Oplismenus liebmannii Panicum compositum Digitaria composita Digitaria elatior Hippagrostis composita Oplismenus compositus f. vittatus Oplismenus decompositus Oplismenus polliniaefolius Orthopogon gonyrrhizus Orthopogon junghuhnii Orthopogon longiracemosus Orthopogon remotus Panicum bidentatum Panicum bidentulum Panicum certificandum Panicum composito-proximum Panicum elatius Panicum gonyrrhizum Panicum lanceolatum Panicum peninsularum Urochloa aristata Orthopogon hirtellus Oplismenus elatius Echinochloa lanceolata Orthopogon pratensis Orthopogon setarius Panicum sylvaticum Oplismenus sylvaticus Pollinia undata Andropogon undatus Orthopogon junghuhnii Oplismenus burmanni var. intermedius Oplismenus compositus subsp. patens Oplismenus compositus var. angustifolius Oplismenus compositus var. formosanus Oplismenus compositus var. intermedius Oplismenus compositus var. lasiorhachis Oplismenus compositus var. owatarii Oplismenus compositus var. patens Oplismenus compositus var. rariflorus Oplismenus compositus var. setarius Oplismenus compositus var. submuticus Oplismenus compositus var. sylvaticus Oplismenus compositus var. vittatus Oplismenus hirtellus subsp. setarius Oplismenus hirtellus var. setarius Oplismenus patens var. angustifolius Oplismenus patens var. yunnanensis Panicum compositum var. fimbriusculum Oplismenus setarius f. sterilis Oplismenus compositus var. compositus Oplismenus compositus f. pubescens Orthopogon compositus var. glabrescens
WorldFloraDB 2024