Dombeya rotundifolia (Hochst.) Planch.

Species

Angiosperms > Malvales > Malvaceae > Dombeya

Characteristics

Tree or shrub, 2-10 m tall; stems with rough bark. Stipules caducous, narrowing from a triangular base into a linear-subulate upper portion, stellate-pubescent. Leaves more or less orbicular, rarely very broadly ovate, 2-8 cm long, 1.8-9 cm broad (larger on sterile branches and in tropical areas up to 13 x 14 cm), sparsely to densely stellate-pubescent on both surfaces, the stellate hairs from a scaly base, crenate-dentate, shallowly to clearly cordate at the base; petiole 1-3 cm long, stellate-tomentose. Cymes several-to many-flowered, crowded at the apices of the branches and branchlets; peduncles 1-4 cm long, stellate-tomentose, sometimes with few to many longer, tufted hairs intermixed, pedicels 0.5-1.5 cm long, pubescence as on the peduncles. Bracts 3, 1 or 2 at or near the calyx-base and 1 lower down, or all three scattered on the pedicel, linear to linear-spathulate or navicular, 1.5-5 mm long, sparsely to densely stellate-pubescent on both surfaces. Calyx rounded at the base, united for 0.5-1.5 mm; lobes 5-7 mm long, 1.5-2 mm broad near base, stellate-pubescent dorsally. Petals usually white (rarely rose-pink) turning a light cinnamon-brown, 7-10 mm long, 4.5-8 mm broad. Stamens united at the base for up to 0.5 mm; filaments up to 3 mm long; anthers 1 mm long or slightly longer; staminodes about 6 mm long. Ovary subglobose, about 2.5 mm in diameter, tomentellous with stellate hairs mixed in the upper half with tufted bristle-like hairs, bristles 0.5-1 mm long; style with a few short patent hairs or stellate-pubescent, 2.5-3.5 mm long; branches 1.5-2.5 mm long; cells usually 3 with 2 ovules in each cell. Capsule subglobose, about 5 mm in diameter, tomentellous with stellate and tufted hairs; the large bristle like hairs up to 1 mm long.
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Leaf-lamina 3–15 cm. in diam., leathery, broadly ovate to suborbicular, apex rounded or more rarely acute, margin irregularly dentate or subentire, base cordate and 5–7-nerved, scaberulous with minute appressed stellate hairs above, pale-tomentellous below, nerves prominent below, veins prominent and reticulate; petiole up to 8 cm. long but usually less, tomentellous; stipules c. 3 mm. long, very caducous, narrowly lanceolate-acuminate, pubescent.
A softy hairy tree. It grows up to 9 m tall. It has many branches and loses its leaves during the year. The leaves are large, leathery and rounded with a heart shaped base. The flowers are pink or white and in branched clusters. The flowers usually occur when the tree is without leaves. The fruit are small and dark. They are the size of an olive.
Flowers white or more rarely pink, in many-flowered axillary panicles, often appearing before the leaves; peduncle often very short, up to c. 3 cm. long, slender, floccose-tomentellous; pedicels up to c. 1·5 cm. long, with a similar indumentum; bracts 2–A mm. long, very caducous, linear-lanceolate, tomentose.
Ovary depressed-globose, tomentose; loculi glabrous within; ovules 2 or rarely 3 per loculus; style c. 2 mm. long, sparsely pilose, at least near the base; stigmas 3 or rarely 5, c. 1·5 mm. long, spreading or recurved.
Shrub or small tree up to c. 8 m. tall; bark dark and rough; buds ferruginously tomentose; young branches thinly tomentose but soon glabrous.
Stamens joined below in a very short tube 0·5–1 mm. long; staminodes 6–9 mm. long, filamentous to linear-lanceolate, glabrous.
Calyx-lobes c. 7 × 2·5 mm., lanceolate-acuminate, tomentellous or densely pubescent outside.
Seeds brown, c. 3 × 2·5 mm., trigonous; testa slightly wrinkled.
Petals c. 1 × 0·7 cm., very obliquely triangular-obovate.
Capsule c. 6 mm. in diam., globose, tomentose.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 8.0
Root system -
Rooting depth (meter) 1.1
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

A tropical plant. It grows in grassland in Malawi at 1,500 m altitude. It can grow between 60-2,135 m above sea level. It grows in hot arid places. It can tolerate frost. It often grows over limestone parent material. It can tolerate drought. It can re-grow after fire. It can grow in arid places. Brisbane Botanical Gardens.
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Grassland, woodland and forest, often on termite mounds, usually at elevations from 1,000-2,250 metres, but descending almost to sea level in the south of its range.
Light 4-9
Soil humidity 5-7
Soil texture 3-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-11

Usage

The fruit are eaten raw. They have a pleasant acid taste. The flowers are cooked and eaten as a side-dish to which pumpkin leaves are sometimes added.
Uses animal food bee plant environmental use food fuel invertebrate food material medicinal poison social use timber vertebrate poison wood
Edible flowers fruits leaves seeds stems
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

It is easily grown from seeds. Seeds should be sown when fresh and seedlings can be transplanted. It can also be grown from cuttings.
Mode cuttings seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -7
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Leaf

Dombeya rotundifolia leaf picture by johan (cc-by-sa)
Dombeya rotundifolia leaf picture by Susan Brown (cc-by-sa)
Dombeya rotundifolia leaf picture by Susan Brown (cc-by-sa)

Flower

Dombeya rotundifolia flower picture by susan brown (cc-by-sa)
Dombeya rotundifolia flower picture by susan brown (cc-by-sa)
Dombeya rotundifolia flower picture by Lawrence ole Ngugi (cc-by-sa)

Distribution

Dombeya rotundifolia world distribution map, present in Angola, Burundi, Botswana, Ethiopia, Kenya, Mozambique, Malawi, Namibia, Rwanda, eSwatini, Tanzania, United Republic of, Uganda, South Africa, Zambia, and Zimbabwe

Conservation status

Dombeya rotundifolia threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:823206-1
WFO ID wfo-0000653948
COL ID 3792J
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Assonia densiflora Assonia rotundifolia Xeropetalum rotundifolium Dombeya dinteri Dombeya gossweileri Dombeya subdichotoma Dombeya cerasiflora Dombeya condensiflora Dombeya cuanzensis Dombeya damarana Dombeya melanostigma Dombeya myriantha Dombeya ringoetii Assonia cuanzensis Assonia myriantha Dombeya rotundifolia var. velutina Dombeya rotundifolia var. rotundifolia Dombeya delevoyi Dombeya densiflora Dombeya rotundifolia