Ipomoea ommaneyi Rendle

Species

Angiosperms > Solanales > Convolvulaceae > Ipomoea

Characteristics

Perennial with a fusiform tuberous taproot, 1 m x 250 mm. Stems annual, several, herbaceous, trailing, up to 2 m long or more, younger parts densely pubescent. Leaves secund, ovate-lanceolate or oblong-lanceolate, up to 300 x 120 mm, base rounded or subcordate, apex sub-obtuse or acuminate, margin crisped, densely yellow-ciliate, both surfaces densely silky silvery white-hairy, main and lateral nerves prominent below; petiole stout, 5-50 mm long, densely hairy. Peduncles densely hairy, up to ±100 mm long. Flowers several in dense head; outer bracts ovate or ovate-subspathulate, acuminate-cuspidate, 25-30 mm long, densely silky hairy; inner bracts smaller. Sepals unequal, 30-35 mm long, lanceolate to linear-lanceolate, densely silky hairy. Corolla funnel-shaped, 30-50 mm long, bright rose-magenta; midpetaline areas white and densely silky outside. Capsule globose, enclosed in calyx, ±10 mm in diameter. Seeds 4, dull black, glabrous.
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Perennial herb. Stems trailing. Leaves with blade ovate, narrowly ovate or oblong, gradually tapering towards apex, up to 300 x 120 mm, base rounded to shallowly cordate, margin densely yellow-ciliate, both surfaces densely covered with silvery white hairs. Flowers: several together in dense head; calyx lobes narrowly ovate, 20-35 mm long, acuminate-cuspidate; corolla 50-70(-90) mm long, rose-magenta; Oct.-Feb. Fruit a globose capsule, ± 10 mm in diameter, enclosed by calyx; seeds glabrous.
A herb. It has thick tubers. It is very large. It can be 1 m long by 30 cm wide. It has several trailing annual stems. These can be 2 m long. The young parts are densely hairy. The leaf blade is 13 cm long by 7.5 cm wide. It can be rounded or shallowly heart shaped at the base. There are silvery hairs on both surfaces. The leaves point upwards. The flowers occur as several together almost in a head. The fruit capsule is round. The seeds are black.
Trailing perennial herb. Leaf lamina ovate-lanceolate or oblong-lanceolate, rounded to shallowly cordate at base, densely covered on both surfaces with silvery white hairs, densely yellow-ciliate on margin. Flowers several together in dense head. Sepals lanceolate, 20-35 mm long, acuminate-cuspidate. Corolla 50-70(-90) mm long. Flowers rose-magenta.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system tap-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

A tropical plant. It grows along roadsides and on rocky soils. It grows from 580-1,350 m.
Light -
Soil humidity 1-3
Soil texture 6-8
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

The crushed and dried roots are mixed with curdled milk or water and eaten.
Uses -
Edible roots tubers
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Ipomoea ommaneyi world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:269426-1
WFO ID wfo-0001297759
COL ID -
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Ipomoea ommaneyi