Fabaceae
豆科
特徵描述
[ Leguminosae 豆科 ]
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. 1987. Taiwania 32(1): 11-118.
- Huang, T. C. et al. 1992. Taiwania 36(4): 318-395.
- Li, H. L. 1963. Livingston Publ. Comp. Pennsylvania 329-362.
- Liu, T. S. 1960. College of Agriculture, National Taiwan University, Taipei. (1): 483-551.
- Ohashi, H. et al. 1984. The science reports of the Tohoku Imperial University. Fourth Series, Biology (38): 277-334. (Sci. Rep. Tohoku Univ. 4. Biol.)
- Ohashi, H. et al. 1985. The science reports of the Tohoku Imperial University. Fourth Series, Biology (39): 53-66. (Sci. Rep. Tohoku Univ. 4. Biol.)
- Ohashi, H. et al. 1988. The science reports of the Tohoku Imperial University. Fourth Series, Biology (39): 191-248. (Sci. Rep. Tohoku Univ. 4. Biol.)
- Ohashi, H. et al. 1991. The science reports of the Tohoku Imperial University. Fourth Series, Biology (40): 1-37. (Sci. Rep. Tohoku Univ. 4. Biol.)
- HUANG, TSENG-CHIEN and OHASHI, HIROYOSHI. 1993. 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.
About 2,000 species occurring throughout the subboreal to temperate regions of the north hemisphere, extending to Patagonia and tropical African mountains; three in Taiwan.
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
