Annual herbs, sometimes with wiry branches from base
Leaves alternate, sometimes radical, sessile, linear to lanceolate, entire or lobed, woolly on lower surface
Capitula radiate, several-flowered, solitary, terminal or axillary, subsessile
Involucre ovoid; bracts connate into cup towards base, pungent, ciliate, enclosing fruit after anthesis
Receptacle basin-shaped, nude, honeycombed, with margins of pits produced
Ray florets neuter, arising on side of receptacle; corolla yellow or orange, sometimes with dark basal spot and dark dorsal stripe, with tube absent; lamina ± elliptic above and narrowed into a long claw, 2- or 3-toothed
Disc florets bisexual, fertile or central ones sterile; corolla yellow or orange; tube slightly widened above, with 5 linear or lanceolate lobes
Anthers shortly sagittate at base; with ovate, apical appendage
Style linear, subglobose at base with lanceolate or linear-lanceolate branches; those of innermost florets undivided
Cypselas obovoid, apically sericeous
Pappus of few narrow setae or ring of minute, hyaline scales or long-ciliate cup, or crown
Seeds germinating within capitula
Nomenclature:
Gorteria L.
Linnaeus: 1229 (1759)
Harvey: 469 (1865)
Phillips: 844 (1951)
Roessler: 319 (1959)
Bremer: 262 (1994)
Distribution & Notes:
Southern Africa: Species 3, endemic, occurring S Namibia, Northern Cape (Richtersveld, Namaqualand) and ± along the west and southern coastal region of the Western Cape to Humansdorp in the Eastern Cape
LINNAEUS, C. VON. 1759. Systema naturae 2 (edn 10). Theodor Haak, Leiden
PHILLIPS, E.P. 1951. The genera of South African flowering plants, edn 2. Memoirs of the Botanical Survey of South Africa No. 25
ROESSLER, H. 1959. Revision der Arctotideae - Gorteriinae (Compositae). Mitteilungen der Botanischen Staatssamlung München 3
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Welcome to Biodiversity Advisor 2.0!
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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