CAREX sect. CAREYANAE in Flora of China @ efloras.org

35. CAREX sect. CAREYANAE Tuckerman ex Kükenthal in Engler, Pflanzenr. 38(IV. 20): 679. 1909.

疏花薹草组 shu hua tai cao zu

Authors: Prof. Song-Yun Liang, Tetsuo Koyama & Gordon C. Tucker

Culms central or lateral. Spikes 2-5; terminal spike male, rarely androgynous; lateral spikes female, usually few, loosely or slightly loosely flowered. Utricles membranous, rarely subleathery, many veined, glabrous or pilose.

About 15 species: Asia, Europe, North America; 11 species (seven endemic) in China.

1 Culms lateral (2)

+ Culms central (3)

2 (1) Utricles glabrous, 5.5-6.5 mm. 342 C. arisanensis

+ Utricles sparsely pubescent, 4-4.5 mm. 343 C. changmuensis

3 (1) Terminal spike androgynous. 341 C. yunlingensis

+ Terminal spike male (4)

4 (3) Leaf margins and veins sparsely pilose (5)

+ Leaves glabrous (6)

5 (4) Female glumes obtuse at apex, not mucronate; utricles densely papillose. 337 C. hypoblephara

+ Female glumes slightly obtuse at apex, mucronate; utricles glabrous or sparsely pilose (but not papillose). 338 C. pilosa

6 (4) Utricles glabrous (7)

+ Utricles hirsute (8)

7 (6) Involucral bracts leaflike. 339 C. filipes

+ Involucral bracts shortly bladed. 340 C. baimaensis

8 (6) Utricles obovate or obovate-lageniform, 5-6 mm (9)

+ Utricles oblong, 7-9 mm (10)

9 (8) Utricles obovate, inflated trigonous, 5-6 mm, yellow-green, hirsute, many veined. 334 C. giraldiana

+ Utricles obovate-lageniform, compressed trigonous, ca. 5 mm, yellowish or grayish green, scattered setulose adaxially, nerveless, scabrous margined above. 333 C. alajica

10 (8) Leaves shorter than culm; nutlets oblong, sessile. 335 C. wushanensis

+ Leaves longer than culm; nutlets elliptic, canaliculate adaxially, 2 lateral faces slightly concave. 336 C. canaliculata

List of lower taxa