Geigeria acaulis
| Family: | Asteraceae |
| Full name: | Geigeria acaulis Benth. & Hook.f. ex Oliv. & Hiern |
| Location: | Kyffhäuser (2416AD + 2416CB) |
| ID status: | Fairly certain |
| Afrikaans common name(s): | Perdebynessie |
| English common name(s): | Silver geigeria, Rosulate geigeria, Hairy vomitdaisy |
| Synonym(s): | - |
| Status: | Native |
| Description: | Yellow flowers. Stemless perennial herb, up to c. 12 cm tall. Leaves basal, subsessile, narrowly oblanceolate, up to 8 x 1 cm, densely covered in grey-white woolly hairs, particularly near the base; apex often mucronate. Capitula sessile, solitary in the basal leaf axils, c. 0.7 cm in diameter, light yellow. Involucral bracts 2-3-seriate, subequal, lanceolate, c. 6 mm long. Ligules on the ray-florets c. 5 mm long, oblanceolate, tubular near the base, 3-dentate at the apex. (from Flora of Zimbabwe website) Almost acaulescent herb, the stems 0.5–5 cm long. Leaves crowded at the apex of the stem and raised slightly above ground, sessile, linear or narrowly oblanceolate, often conduplicate, 3–10 cm long, 0.2–0.8 cm wide, base attenuate or running on to the stem, margins entire or obscurely denticulate, apex acute and mucronate, araneose-pubescent on both surfaces. Capitula 7–9 mm long, solitary and sessile in the leafaxils; phyllaries green or red-brown with yellow or reddish tips, the outermost white-hairy, ovate, 5–7 mm long, the innermost glabrous but ciliate, subulate; receptacle paleate, the paleae fimbriate and 2.5–3 mm long. Florets yellow; outer florets few, tube narrowly cylindric, 1.6–3 mm long, ray 1–2.5 mm long, 0.4–0.7 mm wide, style 2–4.5 mm long; disc florets few, tube cylindric, 2.2–3 mm long, lobes 0.3–0.5(–0.9) mm long and unequal, one lobe is almost twice as long as the four others, pilose, anthers 0.9–1.5 mm long, style 2.1–2.8 mm long. Achenes ellipsoid, 1.5–1.7 mm long, densely stiff-hairy; pappus of scales, the inner with central barbellate awn to 2 mm long. (from JSTOR Global Plants website / Flora of Tropical East Africa) |
| Link(s) |
African Plant Database
JSTOR Plant Science Kew Herbarium Catalogue BGBM Berlin-Dahlem - Virtual Herbarium Züricher Herbarien iNaturalist (Namibia / Alex Dreyer) iNaturalist (Namibia) iNaturalist (southern Africa) Flora of Zimbabwe Fleurs de notre Terre - Galerie Namibie Tree Atlas of Namibia |
| Photographer: | AA Dreyer |
| Date of photograph: | 12 Apr 2009 |
| Camera make: | Canon |
| Camera model: | PowerShot A700 |
| Lens aperture: | f/3.2 |
| Shutter speed: | 1/1250 s |
| ISO speed: | - |
| Content last updated: | 01 Jun 2020 |
