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FOC | Family List | FOC Vol. 23 | Carex

109. Carex breviculmis R. Brown, Prodr. 242. 1810.

青绿薹草 qing lü tai cao

Rhizome short or elongate and stoloniferous. Culms tufted, 8-40 cm tall, trigonous, scabrid above. Basal sheaths pale brown, split into fibers. Leaves shorter than culm, blades 2-3(-5) mm wide, flat, stiff, margins scabrid. Lowest involucral bract leafy, longer than inflorescence, shortly sheathed, sheath 1.5-2 mm, remaining bracts bristlelike, nearly sheathless. Spikes 2-5, upper ones contiguous, lower ones spaced; terminal spike male, oblong, 10-15 × 2-3 mm, subsessile, close to next female spike; lateral spikes female, oblong or oblong-ovate, subcylindric, 6-15(-20) × 3-4 mm, densely flowered, sessile or lowest one with peduncle 2-3 mm. Female glumes pale, oblong or obovate-oblong, 2-2.5 (excluding awn) × 1.2-2 mm, membranous, green costa 3-veined and excurrent into an awn 2-3.5 mm, apex truncate or rounded. Utricles pale green, nearly equaling glume, obovate, obtusely trigonous, membranous, densely puberulent above, several veined, base attenuate and shortly stipitate, apex abruptly contracted into a conic beak, orifice emarginate. Nutlet chestnut-colored, tightly enveloped, ovate, ca. 1.8 mm, apex discoid-annulate; style base conically thickened; stigmas 3.

Grasslands on mountain slopes, waysides, ditch sides in valleys; 400-2300 m. Anhui, Fujian, Gansu, Guangdong, Guizhou, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Yunnan, Zhejiang [India, Japan, Korea, Myanmar, Russia (Far East)].

1 Rhizome short; culm slender.   109a var. breviculmis
+ Rhizome stoloniferous; culm much stouter.   109b var. fibrillosa

Lower Taxa


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