Edit History
Ipomoea oenotherae [family CONVOLVULACEAE]
Date Updated: 19 August 2007
Herbarium
South African National Biodiversity Institute, Compton Herbarium, Cape Town (SAM)
Collection
Flora of Southern Africa
Resource Type
Reference Sources
Entry From
Flora of South Africa, (2003) Author: Dr J.P. Roux
Names
Ipomoea oenotherae [family CONVOLVULACEAE]
Common names
Convolvulus oenotherae Vatke: 520 (1882). I. petunioides Baker: 63 (1904). Type: Transvaal, Schoon River, Burke s.n. (K, holo.).
Information
Perennial with a fusiform rootstock up to ± 300 mm long, producing an annual rosette of leaves. Stems unbranched, many, prostrate or ascending, up to 400 mm long, thick, angular, older parts glabrescent, younger parts silvery white-pubescent. Radical leaves entire, linear to lanceolate, 40-100 mm long, or with 1-7 lateral teeth or lobes, terminal lobe distinctly longer than the others; petiole up to 70 mm long. Cauline leaves 20-60 mm, entire or 3-7-lobed, base cuneate, lobes linear to lanceolate, entire to somewhat repand, hairy, soon glabrescent, midÂdle lobe the longest, main nerves prominent below; petiole 5-10 mm long. Flowers axillary, solitary, subsessile, or pedicel 5-15 mm long; bracteoles 4linear, pubescent, 10-15 mm long. Calyx often rose-red, 12-15 mm long; sepals unequal, ovate to ovate-lanceolate, aristate, cili-ate with median keel of hairs, broader and brown in fruit. Corolla narrowly funnel-shaped with spreading limb, 30-50 mm long, deep pink to magenta, glabrous. Capsule globose, glabrous, straw-coloured, 8-10 mm in diameter. Seeds 3-4 mm long, densely pubescent, often pinkish grey. Flowering time November to March.
Habitat
Distinguished by the soft white hairs on the sepals and young parts, linear to pinnatisect leaves with the middle lobe the longest and the 30-50 mm long, pink corolla. The var. angusti-folia Verde. (1958c: 200) from Uganda and Kenya might be superfluous as the material under that name is not clearly distinct from other material of this variable species. The above description refers to the typical variety.
Use
7. Ipomoea oenotherae (Vatke) Hallier f. in Botanische Jahrbucher 18: 125 (1893a); Baker & C.H.Wright: 49 (1904); Baker & Rendle: 145 (1905-06); A.Meeuse: 727 (1957a); Verde: 200 (1958c); Verde: 95 (1963a); Roessler: 16 (1967a); Gone.: 65 (1987); Lejoly & Lisowski: 69 (1992); Retief & P.P.J.Herman: 385 (1997). Type: Kenya, Kitui, Hildebrandt 2767 (B, holo.f).
Range
From Ethiopia and Somalia southwards to Namibia, Botswana and the Northern Province, North-West and Gauteng in South Africa, nowhere common and not gregarious. Growing in mixed bushveld, grassland and also along roadsides and on cultivated ground, often on sandy or rocky soils. Map 42.
Date Updated: 19 August 2007
Herbarium
South African National Biodiversity Institute, Compton Herbarium, Cape Town (SAM)
Collection
Flora of Southern Africa
Resource Type
Reference Sources
Entry From
Flora of South Africa, (2003) Author: Dr J.P. Roux
Names
Ipomoea oenotherae [family CONVOLVULACEAE]
Common names
Convolvulus oenotherae Vatke: 520 (1882). I. petunioides Baker: 63 (1904). Type: Transvaal, Schoon River, Burke s.n. (K, holo.).
Information
Perennial with a fusiform rootstock up to ± 300 mm long, producing an annual rosette of leaves. Stems unbranched, many, prostrate or ascending, up to 400 mm long, thick, angular, older parts glabrescent, younger parts silvery white-pubescent. Radical leaves entire, linear to lanceolate, 40-100 mm long, or with 1-7 lateral teeth or lobes, terminal lobe distinctly longer than the others; petiole up to 70 mm long. Cauline leaves 20-60 mm, entire or 3-7-lobed, base cuneate, lobes linear to lanceolate, entire to somewhat repand, hairy, soon glabrescent, midÂdle lobe the longest, main nerves prominent below; petiole 5-10 mm long. Flowers axillary, solitary, subsessile, or pedicel 5-15 mm long; bracteoles 4linear, pubescent, 10-15 mm long. Calyx often rose-red, 12-15 mm long; sepals unequal, ovate to ovate-lanceolate, aristate, cili-ate with median keel of hairs, broader and brown in fruit. Corolla narrowly funnel-shaped with spreading limb, 30-50 mm long, deep pink to magenta, glabrous. Capsule globose, glabrous, straw-coloured, 8-10 mm in diameter. Seeds 3-4 mm long, densely pubescent, often pinkish grey. Flowering time November to March.
Habitat
Distinguished by the soft white hairs on the sepals and young parts, linear to pinnatisect leaves with the middle lobe the longest and the 30-50 mm long, pink corolla. The var. angusti-folia Verde. (1958c: 200) from Uganda and Kenya might be superfluous as the material under that name is not clearly distinct from other material of this variable species. The above description refers to the typical variety.
Use
7. Ipomoea oenotherae (Vatke) Hallier f. in Botanische Jahrbucher 18: 125 (1893a); Baker & C.H.Wright: 49 (1904); Baker & Rendle: 145 (1905-06); A.Meeuse: 727 (1957a); Verde: 200 (1958c); Verde: 95 (1963a); Roessler: 16 (1967a); Gone.: 65 (1987); Lejoly & Lisowski: 69 (1992); Retief & P.P.J.Herman: 385 (1997). Type: Kenya, Kitui, Hildebrandt 2767 (B, holo.f).
Range
From Ethiopia and Somalia southwards to Namibia, Botswana and the Northern Province, North-West and Gauteng in South Africa, nowhere common and not gregarious. Growing in mixed bushveld, grassland and also along roadsides and on cultivated ground, often on sandy or rocky soils. Map 42.
![Ipomoea oenotherae [family CONVOLVULACEAE]](/fsi/img/misc/plants/static_thumbs/cover_florasa_icon96.jpg)
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