Kobresia yangii S.R.Zhang

Species

Angiosperms > Poales > Cyperaceae > Kobresia

Characteristics

Rhizomes very short. Basal sheaths prominent and persistent, brown, dull, fibrillose, not retaining dried leaf blades. Culms densely tufted, erect, subtriquetrous, 8-23 cm tall, slender, less than 0.5 mm in diam. Leaves basal, shorter than to subequaling culms; blade filiform, thinner than culms, margin involute. Inflorescence spicate, unisexual; all spikelets 1-flowered. Male spikes pale brown, linear, occasionally with 1 or 2 female spikelets at base; male glumes pale brown, oblong, ca. 4 mm, membranous, apex acute or rounded. Female spike compact, brown or pale brown, linear or cylindric, (0.5-)1-2 × 0.1-0.2 cm; lowest involucral bract glumelike, apex rounded; female glumes brown or chestnut-brown laterally, with green midvein, oblong-ovate, 3-3.5 mm, membranous, midvein broad, margin narrowly hyaline, apex rounded. Prophylls yellowish green, with brown apex, utriculiform, narrowly elliptic, 2-3 × 0.7-1 mm, membranous, 2-keeled, keels smooth, margins fused to apex. Nutlets pale brown, oblong, trigonous or compressed trigonous, very shortly stipitate, shortly beaked, 1.5-2.5 mm, beak ca. 0.8 mm. Stigmas 3. Sterile rachilla of female spikelets narrowly lanceolate, ca. 1/2 as long as nutlet. Fl. and fr. Aug.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.08 - 0.23
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

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

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

Kobresia yangii world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:982938-1
WFO ID wfo-0000453511
COL ID 3RB57
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Kobresia gracilis Kobresia yangii