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Agropyron cristatum (L.) Gaertn.

Crested wheatgrass (en), Chiendent à crêtes au sens large (fr), Chiendent à crête (fr), Agropyre à crête (fr)

Species

Angiosperms > Poales > Poaceae > Agropyron

Characteristics

Culms laxly tufted, 20–60(–80) cm tall, usually puberulent, rarely glabrous. Leaf sheath hairy or glabrous; leaf blade involute or flat, 5–15(–20) × 0.2–0.5(–0.9) cm, abaxial surface glabrous, adaxial surface moderately pubescent. Spike oblong-ovoid or ovoid-lanceolate, very dense, 2–6 × 0.8–2.5 cm; rachis internodes ca. 1 mm. Spikelets pectinately arranged, diverging at wide angle from rachis, 6–18 mm, with (3–)5–11 florets. Glumes lanceolate or ovate-lanceolate, pilose or glabrous, rarely laxly spinescent hairy, usually awned; awn ± equaling glume body; proximal glume 2–3 mm; distal glume 3–4 mm. Lemma pilose, densely so, or glabrous, rarely laxly spinescent hairy, usually awned; awn 2–4 mm. Palea ciliate along keels, apex 2-toothed. Anthers ca. 4 mm. Fl. and fr. Jun–Sep. 2n = 28*.
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Plants 3–8 dm; lvs 1.5–6(–10) mm wide; ligules very short; spikes short and stout, 3–7(–10) cm; spikelets 7–10 mm, variously glabrous or scabrous to evidently rough-hairy; glumes and lemmas short-awned or nearly awnless; 2n=14, 28, 42. Eurasian sp., widely planted in w. U.S. as a range grass, and locally established here and there in our range. (A. pectiniforme, with subglabrous spikelets; A. sibiricum and A. desertorum, with relatively small spikelets not quite so closely crowded and not so strongly divergent from the rachis. These segregates perhaps to be recognized at some level, but the taxonomy still not clear.)
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination anemogamy
Spread epizoochory
Mature width (meter) -
Mature height (meter) 0.26 - 0.6
Root system -
Rooting depth (meter) 0.88
Root diameter (meter) 0.1
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light 7-8
Soil humidity 3-5
Soil texture -
Soil acidity 5-8
Soil nutriment -
Hardiness (USDA) 4-9

Usage

Uses animal food environmental use fodder 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°) 15 - 25
Size -
Vigor -
Productivity -

Images

Leaf

Agropyron cristatum leaf picture by 1 (cc-by-sa)
Agropyron cristatum leaf picture by Андрей Кураков (cc-by-sa)
Agropyron cristatum leaf picture by a t (cc-by-sa)

Flower

Agropyron cristatum flower picture by livi c-s (cc-by-sa)
Agropyron cristatum flower picture by Hakkı Akdeniz (cc-by-sa)
Agropyron cristatum flower picture by Agata H (cc-by-sa)

Fruit

Agropyron cristatum fruit picture by Ember (cc-by-sa)

Distribution

Agropyron cristatum world distribution map, present in Afghanistan, Albania, Austria, Bulgaria, Canada, Chile, China, Colombia, Czech Republic, Egypt, Spain, France, Micronesia (Federated States of), Greece, Hungary, Iran (Islamic Republic of), Iraq, Italy, Kazakhstan, Kyrgyzstan, Morocco, Montenegro, Malaysia, Korea (Democratic People's Republic of), Romania, Russian Federation, Turks and Caicos Islands, Turkmenistan, Ukraine, United States of America, and Uzbekistan

Identifiers

LSID urn:lsid:ipni.org:names:7365-2
WFO ID wfo-0000842335
COL ID 5TTSM
BDTFX ID 1220
INPN ID 80446
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Agropyron brandzae Agropyron cristatiforme Agropyron cristatum Agropyron dagnae Agropyron imbricatum Agropyron incanum Agropyron karadaghense Agropyron kazachstanicum Agropyron lavrenkoanum Agropyron litvinovii Agropyron pectinatum Agropyron pectiniforme Agropyron puberulum Agropyron tarbagataicum Avena cristata Brachypodium brachystachyum Costia imbricata Eremopyrum cristatum Kratzmannia cristata Kratzmannia imbricata Kratzmannia pectinata Triticum cristatum Triticum pectinatum Triticum pumilum Agropyron czerepanovii Agropyron glabrispiculatum Agropyron peschkovae Agropyron hirsutum Agropyron karataviense Agropyron sclerophyllum Triticum hirsutum Agropyron aristatum Agropyron barginensis Agropyron cristatum f. calvum Agropyron cristatum f. hirsutissimum Agropyron cristatum f. imbricatum Agropyron cristatum f. pectiniforme Agropyron cristatum f. villosum Agropyron distichum Agropyron erickssonii Agropyron pachyrhizum Agropyron pectiniforme f. barbatum Agropyron pinifolium Agropyron ponticum Agropyron pumilum Agropyron stepposum Eremopyrum puberulum Secale pumilum Triticum aragonense Triticum intermedium Triticum pectiniforme Triticum puberulum Zeia cristata Agropyron muricatum Festuca pectiniformis Cremopyrum pectinatum f. calvum Agropyron cristatum f. pauciflorum Agropyron cristatum f. multiflorum Bromus cristatus Cremopyrum pectinatum Triticum imbricatum Elymus pectinatus Triticum muricatum Triticum caucasicum Agropyron brandzae subsp. ciliatum Agropyron brandzae var. nyaradyanum Agropyron bulbosum var. ciliatum Agropyron bulbosum var. dunense Agropyron cristatum subsp. brandzae Agropyron cristatum subsp. dunensis Agropyron cristatum subsp. erikssonii Agropyron cristatum subsp. imbricatum Agropyron cristatum subsp. incanum Agropyron cristatum subsp. kazachstanicum Agropyron cristatum subsp. pectinatum Agropyron cristatum subsp. pinifolium Agropyron cristatum subsp. ponticum Agropyron cristatum subsp. puberulum Agropyron cristatum subsp. sabulosum Agropyron cristatum subsp. sclerophyllum Agropyron cristatum subsp. stepposum Agropyron cristatum subsp. tarbagataicum Agropyron cristatum var. baicalense Agropyron cristatum var. erikssonii Agropyron cristatum var. glabriglume Agropyron cristatum var. glabrispiculatum Agropyron cristatum var. hirsutissimum Agropyron cristatum var. imbricatum Agropyron cristatum var. incanum Agropyron cristatum var. macranthum Agropyron cristatum var. pectinatum Agropyron cristatum var. pectiniforme Agropyron cristatum var. pluriflorum Agropyron cristatum var. submuticum Agropyron cristatum var. villosum Agropyron lavrenkoanum var. pectinatum Agropyron pectinatum var. dagnae Agropyron pectinatum var. daralaghezicum Agropyron pectinatum var. gluma-villosum Agropyron pectinatum var. imbricatum Agropyron pectinatum var. puberulum Agropyron pectinatum var. stepposum Agropyron pectinatum var. submuticum Agropyron pectiniforme subsp. baicalense Agropyron pectiniforme subsp. brandzae Agropyron pectiniforme subsp. sabulosum Cremopyrum cristatum var. calvum Eremopyrum cristatum var. pectinatum Agropyron cristatum var. minor Agropyron cristatum subsp. hamadanicum Agropyron imbricatum var. villosum Agropyron cristatum var. puberulum Agropyron cristatum subsp. brachyatherum Eremopyrum cristatum var. brachyatherum Agropyron pectinatum f. calvum Agropyron pectinatum f. elatius Agropyron pinifolium var. sclerophyllum Agropyron cristatum var. calvum Agropyron cristatum var. villosum Agropyron lavrenkoanum var. imbricatum Agropyron cristatum subsp. cristatum Cremopyrum pectinatum var. calvum Eremopyrum cristatum var. puberulum Agropyron cristatum var. cristatum Agropyron bulbosum var. dunensis Agropyron cristatum subsp. pachyrrhizum Costia cristata Agropyron pectinatum var. gluma-villosa
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