Delicate perennial herbs, sometimes appearing annual, glabrous, with fleshy, cylindric roots
Leaves basal, filiform or grass-like; cauline, absent or few, narrowly linear
Flowers in compound umbels; involucres of few bracts
Calyx with ovate-acuminate teeth
Petals obovate, with a long, inflexed apex, keeled on face
Disc conical
Stamens longer than petals; filaments linear; anthers elliptic, subdidynamous
Styles spreading, subterete
Fruit oblong, ribbed, crowned with persistent styles; mericarps oblong, semiterete, flat on face, with 5 prominent ribs; oil ducts 6, 2 on inner face; carpophore 0
Seeds semiterete
Nomenclature:
Itasina Raf.
Rafinesque: 51 (1840)
Sonder: 547 (1862), under Oenanthe
Wolff: 139, 369 (1927), under Thunbergiella
Burtt: 92 (1988)
Burtt: 243 (1991)
Pimenov & Leonov: 63 (1993)
Distribution & Notes:
Southern Africa: Species 1: Itasina filifolia (Thunb.) Raf., Western Cape eastwards to about Humansdorp (SW Eastern Cape)
References:
BURTT, B.L. 1988. op. cit. XIV. Notes from the Royal Botanic Garden Edinburgh 45
BURTT, B.L. 1991. Umbelliferae of southern Africa: an introduction and annotated checklist. Edinburgh Journal of Botany 48
PIMENOV, M.G. & LEONOV, M.V. 1993. The genera of the Umbelliferae. A nomenclator. Royal Botanic Gardens, Kew
RAFINESQUE, C.S. 1840. The good book: 51. Eleutherium of knowledge, Philadelphia
SONDER, W. 1862. Umbelliferae. Flora capensis 2
WOLFF, H. 1927. Umbelliferae. Das Pflanzenreich IV. 228 (Heft 90)
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Biodiversity Advisor, developed by the South African National Biodiversity Institute (SANBI) and its Data Partners, is a system that will provide integrated biodiversity information to a wide range of users who will have access to geospatial data, plant and animal species distribution data, ecosystem-level data, literature, images and metadata.
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