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

24. Saxifraga egregia Engler, Bull. Acad. Imp. Sci. Saint-Pétersbourg. sér. 3. 29: 113. 1883.

优越虎耳草 you yue hu er cao

Herbs perennial, 9-32 cm tall. Stem proximally brown crisped pilose, rarely glabrous, distally shortly glandular hairy. Basal leaves with petiole 1.9-5 cm, margin crisped glandular villous; leaf blade cordate or cordate-ovate to narrowly ovate, 1.6-3.3 × 1.2-2 cm, abaxially and marginally brown villous, adaxially subglabrous. Cauline leaves (3-)7-13; proximal ones with petiole 1.5-19 mm, brown crisped villous; leaf blade cordate-ovate to cordate, 1.2-2.6 × 0.8-2 cm, abaxially and marginally glabrous or subvillous, adaxially glabrous or subglabrous, base cordate, apex subobtuse or acute; most distal cauline leaf with petiole 2-3 mm, leaf blade lanceolate to oblong, 0.9-1.6 cm × 3-7 mm, both surfaces brown glandular hairy or glabrous, base cuneate to rounded, margin brown crisped glandular villous and shortly glandular hairy, apex subobtuse or acute. Pleiochasium corymbose, 1.9-8 cm, 3-9-flowered; branches 1-5.3 cm, 1-3-flowered; pedicels 0.4-6 cm, shortly glandular hairy. Sepals reflexed, ovate to broadly so, 2-3.8 × 1.2-2 mm, abaxially and marginally glandular hairy or margin glabrous, veins 3-6, not, partly, or fully confluent at apex, apex obtuse. Petals yellow, elliptic to ovate, 5.3-8 × 2.3-3.5 mm, (2-)4-6(-10)-callose, 3-6(or 7)-veined, base cuneate to rounded, with a claw 0.4-1.1 mm, apex obtuse or subacute. Stamens 4-6 mm. Ovary subsuperior, ovoid, 2.5-3.8 mm; styles 1-1.5 mm. Fl. and fr. Jul-Oct.

* Forests, wet places in forest understories, scrub, alpine meadows, rock crevices; 2000-4600 m. S Gansu, E and S Qinghai, W Sichuan, E Xizang, NW Yunnan.

1 Sepals 3-veined, veins partly or fully confluent at apex   24c var. xiaojinensis
+ Sepals 3-6-veined, veins not confluent at apex.   (2)
2 (1) Sepals glandular hairy at margin   24a var. egregia
+ Sepals glabrous at margin   24b var. eciliata

Lower Taxa


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