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FOC | Family List | FOC Vol. 8 | Saxifragaceae

4. Astilbe Buchanan-Hamilton ex D. Don, Prodr. Fl. Nepal. 210. 1825.

落新妇属 luo xin fu shu

Pan Jintang ; Hideaki Ohba

Herbs perennial. Rhizomes thick. Stems brown paleaceous hairy or long pilose. Leaves alternate, long petiolate, 2-4 × ternately compound, rarely simple; stipules membranous; leaflets lanceolate, ovate, or broadly ovate to elliptic, margin dentate. Inflorescence a terminal panicle, bracteate. Flowers white, lilac, or purple, bisexual or unisexual, rarely plants polygamous or dioecious. Sepals (4 or)5. Petals usually 1-5, sometimes more or absent. Stamens usually (5 or)8-10. Carpels 2(or 3), ± connate or free; ovary subsuperior or semi-inferior, 2(or 3)-loculed with axile placentation or 1-loculed with marginal placentation; ovules many. Fruit a capsule or follicle. Seeds small.

About 18 species: Asia, North America: seven species (three endemic) in China.

1 Inflorescence sparsely flowered; petals 1-5 and obsolescent, or absent.   (2)
+ Inflorescence densely flowered; petals 5, not obsolescent.   (3)
2 (1) Sepals 5, subleathery, glandular hairy abaxially; petals 2-5 and obsolescent, or absent   6 A. macrocarpa
+ Sepals 4 or 5, submembranous, glabrous abaxially; petals absent, sometimes 1(-5) and obsolescent   7 A. rivularis
3 (1) Sepals glabrous at margin; petals spatulate to oblanceolate.   (4)
+ Sepals glandular ciliate at margin; petals linear or linear-oblanceolate.   (5)
4 (3) Plants 32-150 cm tall; sepal margin entire, apex obtuse; petals usually oblanceolate, 1-veined, obtuse or retuse at apex   4 A. longicarpa
+ Plants 15-30 cm tall; sepal margin sparsely dentate distally, apex truncate or rounded; petals usually spatulate, 4-6-veined, acute at apex   5 A. macroflora
5 (3) Sepals glandular hairy abaxially   3 A. rubra
+ Sepals glabrous abaxially.   (6)
6 (5) Panicle scarcely 12 cm in width, branches densely brown long crisped hairy; leaflets usually acute to shortly acuminate at apex   1 A. chinensis
+ Panicle to 17 cm in width, branches glandular pilose; leaflets usually shortly acuminate to acuminate at apex   2 A. grandis

Lower Taxa


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