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62. Zornia J. F. Gmelin, Syst. Nat. 2: 1076, 1096. 1792.
丁癸草属 ding gui cao shu
Herbs, annual or perennial, usually prostrate or decumbent. Stems slender. Stipules leaflike, spurred basally to point of insertion, basal portion usually divided. Leaves paripinnate, 2[-4]-foliolate; leaflets opposite, subsessile; leaflet blades usually pellucid punctate. Inflorescences axillary or terminal, sparse spikes; bracts usually peltate, stipulelike. Flowers small, usually enclosed in a pair of bracts. Bracteoles absent. Hypanthium short. Calyx small, 2-lipped, adaxial lobes short. Corolla usually yellow; petals ± equal. Stamens monadelphous; anthers dimorphic. Ovary linear, undulate, with 5-8 ovules; style filiform; stigma terminal. Legume a loment, compressed, not stipitate, smooth or surface echinate-setose, indehiscent, divided into few to many subglobose-oblate articles, abaxial suture straight, adaxial suture sinuate, apex usually without a beak. Seeds 1 to several, ovoid or reniform, compressed.
About 75 species: tropics and temperate regions worldwide; two species in China.
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Leaflet blades ovate-oblong, obovate, or lanceolate, abaxially with brown and black glands; fruit surface echinate-setose. |
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1 Z. gibbosa |
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Leaflet blades ovate-lanceolate, abaxially without brown and black glands; fruit surface smooth. |
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2 Z. intecta |
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Lower Taxa
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