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FOC | Family List | FOC Vol. 8 | Saxifragaceae | Saxifraga

64. Saxifraga nigroglandulifera N. P. Balakrishnan, J. Bombay Nat. Hist. Soc. 67: 59. 1970.

垂头虎耳草 chui tou hu er cao

Saxifraga nutans J. D. Hooker & Thomson, J. Proc. Linn. Soc., Bot. 2: 69. 1858, not D. Don (1822), nor Adams (1834); Hirculus nutans Losinskaja; S. nutans f. swertioides Engler.

Herbs perennial, 5-36 cm tall. Stem simple, proximally dark brown villous only at leaf axils, distally shortly dark brown glandular hairy. Basal leaves with petiole 1.8-6 cm, margin crisped glandular villous; leaf blade broadly elliptic to ovate or suboblong, 1.5-4 × 1-1.7 cm, abaxially glabrous, adaxially glabrous or sometimes sparsely glandular hairy, margin sparsely brown crisped glandular villous, apex obtuse or acute. Cauline leaves with petiole 2-17 mm, gradually shorter to absent distally on stem, margin brown glandular villous; leaf blade lanceolate to oblong, 1.3-7.5 × 0.3-2.2 cm, both surfaces subglabrous, margin brown glandular villous, apex obtuse or acute. Cyme racemiform, 2-12.5 cm, 2-14-flowered; flowers usually nodding and secund; pedicel 5-6 mm, densely dark brown glandular hairy. Sepals erect, triangular-ovate or ovate to lanceolate, 3.5-5.4 × 1.4-3 mm, abaxially and marginally dark brown glandular hairy, veins 3-6, not confluent at apex, apex obtuse or acute. Petals yellow, subspatulate to narrowly obovate, 7.4-9.6 × 2.5-3 mm, not callose, 3-5-veined. Stamens 4-7 mm. Ovary semi-inferior, 2-4.8 mm; styles 1.2-1.4 mm. Fl. and fr. Jul-Oct.

Forests, forest margins, scrub, alpine meadows, stony hillsides, alpine lakesides; 2700-5000(-5400) m. W Sichuan, S Xizang, NW Yunnan [Bhutan, Nepal, Sikkim].


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