Difference between revisions of "Ricinus"
Sp. Pl. 2: 1007. 1753.
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|genus=Ricinus | |genus=Ricinus | ||
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-->[[Category:Treatment]][[Category:Euphorbiaceae]] | -->[[Category:Treatment]][[Category:Euphorbiaceae]] | ||
Revision as of 19:51, 16 December 2019
Herbs [shrubs], annual or perennial, monoecious; hairs absent; latex absent. Leaves deciduous, alternate, simple; stipules present, caducous; petiole present, glands present at apex and usually proximally; blade palmately lobed, margins serrate, laminar glands present; venation palmate. Inflorescences bisexual (staminate flowers proximal, pistillate distal) or pistillate, terminal or leaf-opposed, racemelike thyrses; glands subtending each bract 2. Pedicels present. Staminate flowers: sepals 3–5, valvate, connate basally; petals 0; nectary absent; stamens to 1000, connate proximally in numerous slender, irregularly branched columns; pistillode absent. Pistillate flowers: sepals 5, distinct or connate basally; petals 0; nectary absent; pistil 3-carpellate; styles 3, distinct or slightly connate basally, 2-fid. Fruits capsules. Seeds ovoid or ovoid-ellipsoid; caruncle present. x = 10.
Distribution
ne Africa, widely cultivated and often naturalized in tropical, subtropical, and warm temperate regions worldwide.
Discussion
Species 1.
Selected References
None.