Carex caucasica

大井氏扁果薹

Carex caucasica Steven

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

Steven. 1813. Mémoires de la Société Impériale des Naturalistes de Moscou 4: 68. (Mém. Soc. Imp. Naturalistes Moscou)

Carex jisaburo-ohwiana T. Koyama

T. Koyama. 1956. Journal of Japanese Botany 15: 176. (J. Jpn. Bot.)
Carex caucasica Steven subsp. jisaburo-ohwiana (T. Koyama) T. Koyama

Koyama. 1962. Journal of the Faculty of Science, Imperial University of Tokyo. Section III, Botany 8: 197. (J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot.)
Carex duthiei C. B. Clarke

Ohwi. 1934. Journal of Japanese Botany 7: 194. (J. Jpn. Bot.)

herb

Rhizome short, subloosely tufted. Culms erect, 25-60 cm tall, trigonous.
Leaves slightly shorter than culm; blades 3-5 mm wide; basal sheaths reddish or brownish purple, slightly shiny.
Spikes 3 to 6, close together and subfastigiate except lowest; terminal spike gynaecandrous with a short staminate part at base; lateral spikes pistillate, oblong to elliptic or oblong, terete, 1-3 cm long, 5-6 mm wide, densely many-flowered, subsessile to peduncle. lowest bract leafy, slightly overtopping inflorescence, all not sheathing.
Pistillate glumes elongated elliptic, 3.2-3.8 mm long acute at apex, dark purple-brown to purplish black, keel yellowish. Utricles suberect, obovate or elliptic, 3-3.5 (-3.8) mm long, broader than, surpassed by glume, plano-convexed, yellowish green, 7- to 9-veined on abaxial side; beak short, purplish, subtruncate at orifice. Achenes loosely contained, obovate, triquetrous; stigmas 3.
Probably a synonym of <i>C. atrata</i>, more studies are necessary.