特徵描述
作者
HUANG, TSENG-CHIEN and OHASHI, HIROYOSHI
型態特徵
Herbs, shrubs, or trees. Leaves stipulate and usually alternate, pinnate or digitately compound, or simple, sometimes with the rachis ending in a tendril. Inflorescence variable, axillary, leaf-opposed or terminal, mostly pseudoracemose or panicled, bracts and bracteoles usually both present; flowers usually irregular, hermaphroditic, rarely regular or polygamous; sepals 4–5, connate or free, often unequal, sometimes combined into 2 lips; petals 5, rarely fewer by reduction, usually free and unequal; stamens normally 10, perigynous or hypogynous, rarely fewer or indefinite; filaments free or variously connate; anthers 2-celled, generally longitudinally dehiscent; ovary free; style simple, cylindrical, usually declinate, stigma capitate, terminal or oblique; ovules one or more on the ventral suture. Fruit usually a dry, dehiscent legume, typically dehiscent by one or both sutures into two valves, or indehiscent, sometimes jointed and separating into 1-seeded joints. Seeds usually exalbuminous; cotyledons foliaceous or amygdaloid, with a straight or inflexed acumbent radicle.
屬
Genera about 650, species over 18,000, cosmopolitan. About 60 genera and 170 species in Taiwan.
參考文獻
- Huang, S. F. & T. C. Huang, Taiwania 32(1): 11-118. 1987.
- Huang, T. C. et al., Taiwania 36(4): 318-395. 1992.
- Li, H. L., Livingston Publ. Comp. Pennsylvania 329-362. 1963.
- Liu, T. S, College of Agriculture, National Taiwan University, Taipei. 483-551. 1960.
- Ohashi, H. et al., The science reports of the Tohoku Imperial University. Fourth Series, Biology 277-334. 1984. (Sci. Rep. Tohoku Univ. 4. Biol.)
- Ohashi, H. et al., The science reports of the Tohoku Imperial University. Fourth Series, Biology 53-66. 1985. (Sci. Rep. Tohoku Univ. 4. Biol.)
- Ohashi, H. et al., The science reports of the Tohoku Imperial University. Fourth Series, Biology 191-248. 1988. (Sci. Rep. Tohoku Univ. 4. Biol.)
- Ohashi, H. et al., The science reports of the Tohoku Imperial University. Fourth Series, Biology 1-37. 1991. (Sci. Rep. Tohoku Univ. 4. Biol.)
- HUANG, TSENG-CHIEN and OHASHI, HIROYOSHI, Flora of Taiwan, second edition 3: 160. . (Fl. Taiwan 2nd edit.)
Astragalus 紫雲英屬
作者
HUANG, TSENG-CHIEN and OHASHI, HIROYOSHI
型態特徵
Perennial or annual herbs, shrublets or undershrubs. Leaves odd-pinnate, the leaf-rachis terminating either in a leaflet or a spine, stipulate; leaflets exstipellate. Flowers white yellow to purplish in axillary corymbose, often forming a head-like cluster at the top of a scape; calyx tubular or campanulate, equal, gibbous on the back, the teeth 5, subequal, the keels equal to or a little shorter than the wings; stamens diadelphous, the anthers uniform. Pods linear or oblong, usually turgid.
參考文獻
種列表
- Astragalus antisellii
- Astragalus coulteri
- Astragalus crotalariae
- Astragalus depressus
- Astragalus douglasii
- Astragalus exscapus
- Astragalus frigidus
- Astragalus glycyphyllos
- Astragalus hartwegii
- Astragalus hypoglottis
- Astragalus layneae
- Astragalus leontinus
- Astragalus leucopsis
- Astragalus miser var. oblongifolius
- Astragalus monspessulanus
- Astragalus nankotaizanensis 南湖大山紫雲英
- Astragalus nokoensis 能高大山紫雲英
- Astragalus oroboides
- Astragalus penduliflorus
- Astragalus purpureus
- Astragalus sericeus
- Astragalus sinicus 紫雲英
