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Annual or perennial herbs, sometimes subshrubby. leaves alternate, rarely subopposite. Cymes spike-like, usually scorpioid, terminal or pseudoaxillary, simple or branched; rarely flowers solitary, supra-axillary. Flowers bisexual, 5-merous. Corolla salver-shaped or funnel-shaped, white, yellow or blue. Stamens included. Ovary 4-celled, entire or subentire. Style terminal. Fruit dry, usually splitting at maturity into four 1-seeded nutlets, free or cohering in pairs or remaining entire and 1-seeded by abortion. Derivation of name: turning with the sun, heliotropic Worldwide: c. 250 species, tropical and temperate areas Caprivi: 5 taxa. |
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| Species | Content |
| indicum L. | Description, Image |
| ovalifolium Forssk. | Description, Image |
| strigosum Willd. | Description, Image |
| supinum L. | Description, Image |
| zeylanicum (Burm. f.) Lam. | Description, Image |
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