Leymus pseudoracemosus C.Yen & J.L.Yang

Species

Angiosperms > Poales > Poaceae > Leymus

Characteristics

Culms 60–90 cm tall, 2-or 3-noded, glabrous, but pubescent below inflorescence. Leaf sheath usually longer than internode, glabrous, margin membranous; ligule membranous, ca. 3 mm; leaf blade glaucous, flat or rolled, 15–34(–40) × (0.4–)0.5–0.7 cm, abaxial surface glabrous or scabrous, adaxial surface puberulent or villous. Inflorescence erect, linear, sometimes with short branches proximally, 12–25 × 2–3 cm; rachis densely pubescent, margin villous with internodes 1–3 cm. Spikelets 3–5 per node, 1.7–2.1 cm, with 5–10 florets; rachilla internodes 1–1.8 mm, pubescent. Glumes lanceolate or narrowly so, obscurely 3-veined, margin membranous, ciliate, apex with awn 1–1.7 mm; proximal glume 10–12 mm; distal glume 13–16 mm. Lemma lanceolate, 5–7(–10)-veined, densely villous, margin membranous, ciliate; first lemma 9.5–13 mm; callus villous; awn 0.2–1.5 mm. Palea slightly shorter than or equaling lemma, ciliate along keels, apex 2-cleft. Anthers yellowish, 3–5 mm. Caryopsis blackish brown, narrowly elliptic, 4.5–5 × ca. 2 mm, apex with white hairs. Fl. and fr. Jul–Aug.
Life form perennial
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.6 - 0.9
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 7-9
Soil humidity 1-5
Soil texture 3-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

Uses 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°) -
Size -
Vigor -
Productivity -

Distribution

Leymus pseudoracemosus world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:902448-1
WFO ID wfo-0000878225
COL ID 6Q74W
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Leymus pseudoracemosus