Plants photographed elsewhere in Namibia (not on Kyffhäuser)
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Hibiscus engleri K.Schum.

Hibiscus engleri


Family: Malvaceae
Full name: Hibiscus engleri K.Schum.
Location: Near Kobos (2316DA)
ID status: Fairly certain
Afrikaans common name(s): Wilde hibiskus
English common name(s): Engler's hibiscus, Wild hibiscus, Stinging hibiscus
Synonym(s): Hibiscus cordatus Harv. - non D.Dietr., nec Hochst. ex Webb(1860), non D.Dietr. (1847), nec Hochst. ex Webb (1854)-- misapplied name
Hibiscus irritans R.A.Dyer
Hibiscus microcalycinus Ulbr.
Hibiscus subphysaloides Hochr.
Status: Native
Description: Erect herb up to c. 15 m tall; stems tomentose or pubescent and rough with yellow stellate-setose or simple irritant hairs. Leaf-lamina up to 9 x 8 cm, ovate to suborbicular in outline, shallowly to rather deeply 3-5-lobed or 3-5-angled (occasionally not lobed), tomentose to densely pubescent and with stellate, 2-3-branched or simple bristles, apex acute to rounded, margin serrate, base cordate; petiole up to 8 cm long, hairy like the stems; stipules 3-4 mm long, filiform. Flowers 5-6 cm in diam., yellow with maroon or dark red centres, solitary in the axils of the upper leaves and in corymbose terminal or lateral racemes or panicles; peduncle up to 6 cm long, hairy like the stems, articulated near the apex. Epicalyx of 7-10 bracts; bracts 1.5-3.5 mm long, filiform, usually extending less than halfway to the sinuses formed by the calyx-lobes. Calyx up to c. 16 mm long; lobes triangular, joined at the base for 7-8 mm. Petals up to 5 x 4 cm, obovate, stellate-pubescent outside where not overlapped, glabrous within. Staminal tube 16 mm long; free parts of filaments 1-1.5 mm long. Style-branches 3-4 mm long. Capsule up to 15 x 9 mm, ellipsoid, setose, with awns up to 3 mm long. Seeds 2.5 x 2 mm, angular-subreniform, sparsely lepidote. (from JSTOR Global Plants website / Flora Zambesiaca)

Erect herb, up to 1.5 m tall. Stems with yellowish simple and stellate, irritant hairs. Leaves ovate to almost round in outline, up to 9 x 8 cm, shallowly to deeply 3-5-lobed or 3-5-angled, with stellate and simple bristly hairs on both surfaces; base cordate; margin irregularly toothed. Petiole up to 8 cm long with hairs like the stems. Flowers solitary in the upper leaf axils, often forming apparent terminal racemes, yellow with a maroon or dark red centre, 5-6 cm in diameter. Epicalyx bracts 7-10, very short, up to 3.5 mm long, filiform. Calyx up to 16 mm long; lobes triangular, joined at the base for 7-8 mm. Fruit an ellipsoid capsule, 15 x 9 mm, bristly hairy, carpels awned up to 3 mm. (from Flora of Zimbabwe website)

Erect herb, up to 1.5 m tall. Dec - May in flower. This shrublet is easy to recognise by its yellow flower with a striking dark- reddish centre. The stems carry sharply pointed star-shaped bristles. The Wild Hibiscus is one of several yellow-flowered hibiscus typified by 5 large petals and branched style. These plants are slender shrubs or small trees with rough leaves and branches. The leaves are usually lobed with tooth margins and are covered with rough, star-shaped hairs. The large cup-shaped flowers are scattered along the branches on thin stalks. They are often yellow with a dark eye; the flowers are very delicate and last only a day before wilting; fresh ones open each morning. The stamens and stigmas are joined to form a conspicuous stalk in the centre of the flower. (from Africa Wild website)
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: 23 Jun 2018
Camera make: Canon
Camera model: EOS 7D Mark II
Lens aperture: f/11.0
Shutter speed: 1/2500 s
ISO speed: 1000
Content last updated: 01 Jun 2020

Note: The identification of some of the plants on this website is not 100% certain. Any comments will be highly appreciated. I would also be willing to supply higher resolution images upon request. Please contact me at the e-mail address given below.

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Last updated 01 Jun 2020

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