Sterculia pexa Pierre

Species

Angiosperms > Malvales > Malvaceae > Sterculia

Characteristics

Trees. Branchlets robust. Leaves palmately compound; stipules triangularly lanceolate, ca. 5 mm, pilose; petiole usually 20-23 cm; leaflets 7-9; leaflet blades obovate-lanceolate or narrowly elliptic, 9-23 × 4-6 cm, abaxially densely stellate pubescent, adaxially nearly glabrous, lateral veins 22-44, parallel, base cuneate, margin entire, apex acuminate. Inflorescence clustered at branchlet tips, racemose or paniculate, up to 20 cm. Epicalyx lobes linear-lanceolate, ca. 1 cm. Calyx white, campanulate, ca. 6 mm, divided to 1/2 length, abaxially densely stellate pubescent, lobes triangular, apex acuminate, incurved and apically coherent with each other. Male flower: androgynophore linear, glabrous. Anthers 10-20, capitate. Female flower: ovary globose, 5-locular, densely puberulent. Style very short; stigma 5-branched. Follicle brownish red, ellipsoid and slightly curved to sickle-shaped, 4-9 × 2-4 cm, 3-seeded, abaxially densely puberulent and hispid, adaxially stellate hairy, margin densely ciliate, apex obtuse. Seeds black, oblong, ca. 1.5 cm. Fl. Oct.
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A deciduous tree. It grows 5-10 m high. The young branches are chalky white. The leaves are compound. They have leaflets arranged like fingers on a hand. There are 7-9 leaflets. They are 9-23 cm long by 4-8 cm wide. The flowers are greenish-white. The fruit are follicles. These are 4-9 cm long by 3-4 cm wide. The outside is woody. The seeds are oblong and 1.5 cm long by 1 cm wide. They are shiny black.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 12.5 - 15.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a tropical plant. It grows in open deciduous forest or dry evergreen forest. In Thailand it grows between 100-900 m above sea level.
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Sunny dry slopes, roadsides, sometimes cultivated around villages.
Light -
Soil humidity 1-3
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-12

Usage

The seeds are eaten after boiling. They are used in stir fries.
Uses afforestation fiber timber wood
Edible seeds
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Plants are grown from seeds.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment scarification soaking
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Sterculia pexa world distribution map, present in China, Cambodia, Lao People's Democratic Republic, Thailand, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:825396-1
WFO ID wfo-0001141261
COL ID 52DJL
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Clompanus pexa Sterculia pexa Sterculia yunnanensis Sterculia pexa var. yunnanensis