《中国植物志》|| 菊科 COMPOSITAE ||雪兔子亚属 Subgen. Eriocoryne (DC.) Hook. f. ||三指雪兔子 Saussurea tridactyla Sch.-Bip. ex Hook.f.

18.三指雪兔子
Saussurea tridactyla Sch. -Bip. ex Hook. f., Fl. Brit. Ind, 3: 377. 1881. Hemsl. in Jour. Linn. Soc. Bot. 30: 115. 1894 et 35: 187. 1902; Lipsch. in Nov. Syst. Pl. Vas. 1966: 223. 1966 et Gen. Saussurea 47. 1979; S. Y. Hu in Quart. Journ. Taiwan Mus. 21(1-2): 19. 1968; Kitam. in Act. Phytotax. et Geobot. 24 (1-2): 8. 1969;西藏植物志4: 879. 1985.
多年生多次结实有茎草本。根黑褐色，细长，垂直直伸。茎高8-15厘米，密被白色或带褐色的长棉毛，基部被残存的褐色叶柄。叶密集；下部叶有宽叶柄，柄褐色，长1.5-2厘米，叶片线形，长约1.5厘米，宽2-4毫米，边缘有浅钝齿；中部与上部茎叶有短柄，柄长达1厘米，叶片匙形、倒卵状匙形或长圆形，长1-2厘米，宽0.5-1厘米，边缘或上部边缘或近顶端有2-6个浅钝裂片或钝齿，极少边缘全缘，基部楔形渐狭；全部叶两面同色，白色或灰白色，密被稠密的棉毛。头状花序多数，无小花梗，在茎端集成半球形的、直径4-5.5厘米 的总花序，总花序为白色棉毛所覆盖。总苞长圆状，直径0.8毫米；总苞片3-4层，紫红色，近等长，长圆形，长9-12毫米，宽3毫米，顶端急尖或钝，外层外面被长棉毛，中内层外面无毛。小花紫红色，长1厘米，细管部长5.5毫米，檐部长4.5毫米。瘦果褐色，长7毫米，倒圆锥状。冠毛1层，长，羽毛状，褐色或污褐色，长8毫米。花果期8-9月。
分布西藏（亚东、浪卡子、加查、朗县、错那、八宿）。生于高山流石滩、山顶碎石间、山坡草地，海拔4300-5300米。不丹、尼泊尔、锡金也有分布。模式标本采自锡金。

《Flora of China》|| Asteraceae || Saussurea ||三指雪兔子 Saussurea tridactyla

22. Saussurea tridactyla Schultz Bipontinus ex J. D. Hooker, Fl. Brit. India. 3: 377. 1881.

三指雪兔子 san zhi xue tu zi

Herbs 8-15[-20] cm tall, perennial, polycarpic. Caudex usually branched. Stem solitary, 3-8 mm in diam., erect, simple, hidden by reflexed leaves. Rosette and lower stem leaves petiolate; leaf blade spatulate, 5-25 × 2-6 mm, both surfaces grayish green and densely white or yellowish lanate, margin apically 3-6-lobed, apex obtuse to rounded. Middle and upper stem leaves narrowly spatulate to linear, 1-3(-4.5) × 0.3-0.7(-1) cm, margin apically 2-6-lobed or entire, apex obtuse to rounded. Capitula usually numerous, in a hemispheric synflorescence 2-3(-5.5) cm in diam. or rarely solitary, sessile. Involucre oblong to cylindric, 3.5-4(-8) mm in diam. Phyllaries in 3 or 4 rows, linear-oblong, 9-13 × 1.5-3 mm, subequal, apex acute; outer phyllaries densely villous; middle and inner phyllaries membranous, apically sparsely pilose. Receptacle bristles 0.2-0.5(-1.5) mm. Corolla dark to blackish purple, 1-1.4 cm, tube 5-7.5 mm, limb 5-6 mm, lobes 1.5-2.7 mm. Achene brown, cylindric to obconic, [3.2-]5-7 mm, smooth, glabrous. Pappus straw-colored to light brown; outer bristles thin, plumose, 2-4 mm; inner bristles 1-1.2 cm. Fl. and fr. Aug-Sep. 2n = 36*.

Alpine scree slopes, among boulders, grasslands on mountain slopes; 4300-5300 m. S Xizang [Bhutan, India (Sikkim), Nepal].