Home | > | List of families | > | Asteraceae | > | Sigesbeckia | > | orientalis |
Synonyms: |
Minyranthes heterophylla Turcz. Sigesbeckia caspica Fisch. & C.A.Mey. Sigesbeckia gracilis DC. Sigesbeckia humilis Koidz. Sigesbeckia iberica Willd. |
Common names: | Eastern St Paul's-wort (English) |
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Description: |
Erect, annual herb up to 1 m high.Leaves opposite, narrowly to broadly ovate, up to 17 cm long, thinly textured, pubescent on both surfaces and with minute gland-dots beneath, leaf base running down the petiole; margin coarsely and irregularly serrate-crenate; petiole up to 10 cm long, pubescent. Inflorescence a lax leafy panicle,up to 30 cm in diameter with ultimate branches slender. up to 1 cm long. Capitula c. 1 cm in diameter; involucral bracts 3-5, linear-spathulate, 3-7 mm long, covered with sticky glands and simple hairs. Florets yellow; ray-florets with a limb c. 1.3 mm long, spreading, 3-fid. Achenes obovoid-oblong, c. 2.7 mm long,curved, more or less 4-sided, blackish, glandular puberulent. |
Notes: | |
Derivation of specific name: | orientalis: oriental, eastern |
Habitat: | |
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Flowering time: | |
Worldwide distribution: | Widespread in old World tropics and subtropics. |
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Insects associated with this species: | |
Spot characters: | Display spot characters for this species |
Literature: |
Beentje, H.J. & Ghazanfar, S.A. (eds.) (2005). Compositae (Part 3) Flora of Tropical East Africa Pages 777 - 778. (Includes a picture). Da Silva, M.C., Izidine, S. & Amude, A.B. (2004). A preliminary checklist of the vascular plants of Mozambique. Southern African Botanical Diversity Network Report No. 30 Sabonet, Pretoria Page 146. Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 28. Phiri, P.S.M. (2005). A Checklist of Zambian Vascular Plants Southern African Botanical Diversity Network Report No. 32 Page 33. Wild, H. (1967). The Compositae of the Flora Zambesiaca area. 1. Heliantheae. Kirkia 6(1) Pages 36 - 37. |
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