Bouteloua gracilis (Kunth) Lag. ex Griffiths

Boutelou grêle (fr), Boutéloua grêle (fr)

Species

Angiosperms > Poales > Poaceae > Bouteloua

Characteristics

Perennial. Culms densely tufted, erect, 15–60 cm tall. Leaf sheaths glabrous, in tight bundles at culm base; leaf blades flat or involute, 3–10 cm, 1–2 mm wide, usually glabrous. Inflorescence of (1 or)2(–4) distant racemes; racemes 2.5–5 cm, falcate at maturity, persistent, spikelets numerous, densely crowded, pectinate; rachis not extendedbeyond uppermost spikelet. Spikelets 5–6 mm; glumes lanceolate, persistent; lower glume linear-lanceolate, ca. 3.5 mm; upper glume lanceolate, 3.5–6 mm, sparsely villous on keel; lemma of fertile floret 5–5.5 mm, dorsally villous, lateral veins extended into 3 short awns at apex, intermediate lobes acute; 2nd floret ca. 2 mm, densely long-villous at rachilla apex, cleft to the base, lobes rounded, awns 3, scabrous, ca. 5 mm; 1 or 2 additional broad awnless rudiments sometimes present. Fl. and fr. summer to autumn. 2n = 28, 35, 42, 61, 77.
More
An annual or perennial grass. It forms dense tufts. It is erect and grows 15-60 cm tall. The leaves are 3-10 cm long and 1-2 mm wide. There are 1 or 2 flowering stalks. These are 3-5 cm long.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 0.1 - 0.5
Mature height (meter) 0.5 - 0.6
Root system -
Rooting depth (meter) 0.7
Root diameter (meter) 0.2
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c4

Environment

It is a temperate plant. It grows in dry, shallow, rocky soils. It grows between 300-2,400 m above sea level. It grows in areas with an annual rainfall above 500 mm. It can tolerate drought. It can grow in arid places.
Light 7-9
Soil humidity 3-6
Soil texture 1-6
Soil acidity 3-8
Soil nutriment -
Hardiness (USDA) 7-9

Usage

Uses animal food environmental use fiber fodder food forage medicinal
Edible seeds
Therapeutic use Dermatological Aid (root), Panacea (root), Veterinary Aid (root), Antidote (unspecified), Gynecological Aid (unspecified), Cyanogenetic (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) 20
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) 12 - 27
Size -
Vigor -
Productivity -

Distribution

Bouteloua gracilis world distribution map, present in Canada, China, and United States of America

Conservation status

Bouteloua gracilis threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:1026047-2
WFO ID wfo-0000853910
COL ID 67WZG
BDTFX ID 119519
INPN ID 717105
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Atheropogon oligostachyus Bouteloua gracilis Bouteloua oligostachya Chondrosum oligostachyum Atheropogon gracilis Actinochloa gracilis Bouteloua gracilis f. pallida Eutriana gracilis Eutriana oligostachya Bouteloua gracilis var. stricta Bouteloua oligostachya var. major Bouteloua oligostachya var. pallida Chondrosum gracile var. polystachyum