Trema tomentosa (Roxb.) H.Hara

Poison peach (en)

Species

Angiosperms > Rosales > Cannabaceae > Trema

Characteristics

Shrub to medium-sized tree of 5-15(-24)m, 5-30(-50) cm ø. Bark grey-brown, smooth to finely fissured, lenticellate. Branchlets, inflorescences, petioles, stipules, and underside of leaves densely and thickly set with greyish, erect, velvety hairs. Stipules linear-lanceolate, c. 5 by 1 mm. Leaves thin-to thick-coriaceous, broadly ovate to ovate-elliptic, (5-)8-15(-19) by (2-)4-7(-9) cm, index 2 ½-3, broadest mostly below the middle; more or less concolorous, drying dark-chocolate brown to blackish brown; above strongly scabrate; base cordate, rarely subcordate or rounded, mostly strongly asymmetrical, rarely symmetrical; margin serrate throughout, apex acute to acuminate-caudate, acumen sharp, 1-3 cm; midrib and nerves raised beneath (often very strongly), impressed and hairy above; nerves 4-6 pairs, ascending and subparallel, at an angle of ± 45°, the lowest pair running to ± ½-⅔ the length of the leaf; reticulations subscalariform to subareolate, often rather distinct beneath; petiole l-l ½ cm by 1-2 mm, densely pubescent. Inflorescences ♂, ♀, or ♂♀, either on the same or on different vegetative branches; bracts ovate-acute, c. 1 by ½ mm. — At anthesis ♂ and ♂♀ axes of the inflorescences lax, 2 ½-4½ cm long, 20-100-flowered; ♂ flower c. 1 ½-  ø; perianth lobes mostly 5, elliptic, c. 1 ½ by 1 mm; filaments c. 1 mm, flat, glabrous, anthers c. 1 by ½ nim; pistillode obovoid-ellipsoid, compressed, 1 ½ by ½ mm. ♀ Inflorescence 1-2 cm long, axes 1-2 mm thick, 5-15-flowered; ♀ flower c. 2 by 1 mm; perianth lobes 4-5, ovate-acute, c. 1 by ½ mm; staminode mostly absent, if present strongly reduced in size and non-functional; ovary c. 1 ½ by ½-1 mm, stigmatic arms slender, c. 1 mm, spreading. Drupe c. 3 by 2 mm, maturing black. Endosperm copious.
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Trees or shrubs, to 10 m tall. Bark grayish brown, smooth or fissured. Branchlets grayish brown to brown, densely grayish brown to gray pubescent. Stipules linear-lanceolate, 6-9 mm. Petiole 0.7-1.8 cm, pubescent; leaf blade grayish brown to black-brown when dry, 7-15(-20) × 3-7(-8) cm, abaxially with grayish brown pubescence, surface of blade visible between hairs under magnification, adaxially very scabrous with erect bristles, base cordate and oblique, margin denticulate, apex acuminate, caudate-acuminate, or rarely acute; basally 3-veined; secondary veins 4 or 5 on each side of midvein. Male inflorescences 2-4.5 cm. Female inflorescences 1-2 cm. Male flowers: subsessile, 1.5-2 mm in diam. Ovary rudimentary, obovate-oblong, compressed, transparent. Female flowers: shortly pedicellate. Tepals 4 or 5, triangular-ovate, 1-1.5 mm. Ovary glabrous. Drupes brownish purple to blackish purple when mature, compressed, 2-3 mm in diam., irregularly rugate, glabrous; perianth persistent. Seed broadly ovoid, compressed, 1.5-2 mm, ribbed. Fl. Mar-Jun (but year-round in tropical zones), fr. Sep-Nov.
Shrub or tree to 8 m high. Leaves: lamina broadly ovate to lanceolate or elliptic, 1–14.8 cm long, 0.6–5.6 cm wide, cordate to rounded, symmetrical or asymmetrical base, serrate to serrulate margin, acuminate at apex, chartaceous to thickly coriaceous, mostly discolorous, usually scabrous above, slightly to strongly scabrous to scabrous-villous to velvety below; veins 3–8 pairs, the lowest pair frequently giving a 3-veined appearance; petiole 2–11 mm long; stipules linear-lanceolate, c. 5 mm long. Inflorescence few-to many-flowered, to c. 4 cm long. Flowers globose, c. 2 mm diam.; perianth persistent. Drupe ovoid, 3–3.5 mm long, 2–3 mm wide, black.
A shrub with several stems. It grows 4 m high. The stems are covered with stiff hairs. The leaves are alternate. They vary in shape but are oval. They can be 2-13 cm long by 1-5 cm wide. The leaves are rough to touch. The leaves have teeth along the edge and a pointed tip. They are paler underneath. The flowers are green or white. They are on short stalks in the axils of leaves. The male and female flowers are separate on the same plant. The fruit are fleshy and round. They are 3 mm across. They occur in bunches are change from green to black as they mature.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 8.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer rhizobia
Photosynthetic pathway c3

Environment

Common in the lowlands and hills, at sea-level up to 1000 m, as a pioneer plant invading and occupying newly opened up habitats on all kind of soils, including limestones. Fl. fr Jan.-Dec. At least in Malaya pollination is affected by wind and small insects (diptera). The ripe black fruit is dispersed by various species of birds.
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Semi-deciduous monsoon vine forest and thicket, mostly on margins (Wightman & Andrews 1989: 88).
Forests, moist valleys, open slopes at elevations of 100-2,000 metres in southern China.
A tropical plant. It grows in tropical and subtropical areas.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

CAUTION: Parts of this plant can cause liver damage. Plants vary in their toxicity. In Australia Aboriginal people cooked and ate the larvae of a wood boring insect that attacks this plant.
Uses construction fiber wood
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Plants can be grown from seed or cuttings.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Trema tomentosa unspecified picture

Distribution

Trema tomentosa world distribution map, present in Argentina, Australia, Bangladesh, Brunei Darussalam, Bhutan, China, Fiji, Micronesia (Federated States of), Hong Kong, Indonesia, India, Japan, Cambodia, Lao People's Democratic Republic, Madagascar, Myanmar, Malaysia, Nepal, Pakistan, Philippines, Singapore, Thailand, Tonga, Taiwan, Province of China, United States of America, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:837105-1
WFO ID wfo-0001244132
COL ID 582ZX
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Sponia velutina Sponia imbricata Urtica cordatifolia Trema blancoi Trema griffithii Trema imbricatum Sponia griffithii Sponia blancoi Celtis amboinensis Trema velutinum Trema dunnianum Trema tomentosa Sponia tomentosa Sponia burmanni Trema orientale subsp. tomentosa

Lower taxons

Trema tomentosa var. viridis