Tetrorchidium didymostemon (Baill.) Pax & K.Hoffm.

Species

Angiosperms > Malpighiales > Euphorbiaceae > Tetrorchidium

Characteristics

A dioecious completely glabrous shrub, liane or small erect evergreen tree 4–12 m. tall with drooping branches, or sometimes a large tree up to 25 m. with a rounded crown, exuding a milky sap.. Bark smooth or minutely fissured, brown.. Twigs slightly zigzag, prominently scarred at the nodes, smooth, yellowish-to olive-green.. Leaves sometimes opposite on the main axes, always alternate on the flowering shoots; petioles canaliculate, 0.5–1 cm. long, eglandular; leaf-blades obovate to elliptic-oblanceolate or elliptic, (4–)7–12(–17) cm. long, (2–)3–6(–8) cm. wide, shortly and abruptly obtusely acuminate or cuspidate, cuneate to attenuate and decurrent, entire or occasionally shallowly and somewhat remotely crenate-serrate, thinly to firmly chartaceous, lateral nerves 5–9 pairs, camptodromous in the lower half, brochidodromous in the upper, scarcely prominent above, slightly so beneath, dark green and glossy above, paler beneath.. Inflorescences leaf-opposed.. Male inflorescences simply spicate, densely flowered, 2.5–8 cm. long; peduncles 0.5–1 cm. long; bracts eglandular.. Male flowers: calyx-lobes 3, broadly suborbicular-ovate, concave, 0.7 mm. long, 0.9 mm. wide, subacute, minutely ciliolate, hyaline, greenish yellow; anther-thecae 0.3–0.4 mm. diameter, yellow; pistillode minute, ± columnar.. Female inflorescences umbellate, 3–5-flowered, 1–1.5 cm. long; peduncles 4–7 mm. long; bracts soon falling.. Female flowers: pedicels stout, 2–4 mm. long; sepals 3, triangular-ovate, 1 mm. long and wide, subacute, minutely sparingly ciliolate, opaque, greenish; petals 0; disc-glands 3, petaloid, alternating with the sepals and carpels, triangular-ovate, 0.8–0.9 mm. long, subacute, yellowish green; ovary (2–)3-locular, subglobose, 1.5–2 mm. diameter, smooth; stylar ‘cap’ ± 1 mm. diameter.. Fruit usually trilobate-subglobose, rarely bilobate, 5 mm. long, 6 mm. diameter, ± smooth, green at first, later becoming brownish green, loculicidal or septicidal; columella slender, 5 mm. long.. Seeds compressed-ellipsoid, 4–5 mm. long, 3–4 mm. diameter; sarcotesta orange-red; endotesta foveolate, black.
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A small tree. It grows 8-12 m high. The trunk is 1 m around. It can grow to 24 m high. The trunk is sometimes fluted. The bark is grey and finely cracked. The branches are zigzag shaped because they bend at each node. Branches are often opposite. The leaves are 7.5-21 cm long by 3.5-11 cm wide. The leaves are thin and papery. The flowers are separately male and female. Male occur in single spikes opposite the leaves. Female flowers are very small and in clusters of 3-5. The fruit have 3 lobes. They are 6 mm across. They contain 3 red seeds.
A shrub or a tree up to 80 ft. high with zigzag branchlets
Slender yellow male flower-spikes
Pale yellowish-green foliage
Life form perennial
Growth form tree
Growth support -
Foliage retention evergreen
Sexuality dioecy
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 8.0 - 12.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Secondary forest, at forest edges or along rivers, lakesides and swamps, at elevations from sea-level up to 1,700 metres.
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It is a tropical plant. It grows in secondary rainforest. It suits humid locations.
In secondary forest regrowth.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

The stem is sucked for the sweet sap in the bark.
Uses animal food charcoal food fuel material medicinal poison wood
Edible barks fruits leaves saps stems
Therapeutic use Erysipelas (unspecified), Fever (unspecified), Laxative (unspecified), Purgative (unspecified), Swelling (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Tetrorchidium didymostemon world distribution map, present in Angola, Benin, Central African Republic, Congo, Gabon, Ghana, Guinea, Guinea-Bissau, Liberia, Nigeria, Sierra Leone, Togo, Tanzania, United Republic of, and Uganda

Conservation status

Tetrorchidium didymostemon threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:356858-1
WFO ID wfo-0000321782
COL ID 7C5V7
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Tetrorchidium didymostemon Tetrorchidiopsis didymostemon Tetrorchidiopsis minor Gelonium angolense Hasskarlia didymostemon Hasskarlia minor Tetrorchidium minus Suregada angolensis