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.)
Medicago 苜蓿屬
作者
HUANG, TSENG-CHIEN and OHASHI, HIROYOSHI
型態特徵
Annual or perennial herbs, with erect or trailing stems. Leaves pinnately trifoliolate, mostly denticulate at the apex, the stipules adnate to the petioles. Flowers in dense axillary racemes, small and yellow; calyx campanulate, the teeth 5, nearly equal, the standard oblong or obovate, not auricled; stamens diadelphous; style short, little incurved, beardless, the stigma capitate. Pods small, spiral or much curved, indehiscent, smooth or spiny; seeds one to many.
