Shorea robusta C.F.Gaertn.

Sal tree (en)

Species

Angiosperms > Malvales > Dipterocarpaceae > Shorea

Characteristics

Trees to 40 m tall, ± tardily deciduous; trunk to 2 m in diam.; crown spreading. Bark gray to dark reddish brown, becoming fissured and flaky; inner bark not laminated; wood hard; heartwood dark brown. Branchlets densely buff scabrous-pubescent. Stipules fugacious, lanceolate, small, lepidote; petiole 2-2.5 cm, buff scabrous-pubescent; leaf blade 10-40 × 5-24 cm, ovate to oblong, thinly leathery, midvein prominent abaxially and conspicuous adaxially, lateral veins ca. 12 pairs prominent abaxially, tertiary veins densely scalariform, glabrous, base obtuse to cordate, apex acuminate. Flowers subsessile, on panicles to 25 cm; branches racemose, secund; bracts caducous, minute. Petals strongly contorted, creamy-yellow or sometimes with a medium pink stripe, 1-1.5 cm × ca. 5 mm, linear. Sepals ovate, to 2 mm in bud, subequal, densely buff pubescent. Stamens many; anthers panduriform, setose toward apex; connective appendages short, stout, exceeding anther apex, sparsely setose. Ovary ovoid, densely buff pubescent. Fruit sepals unequal, spatulate, sparsely pubescent, 3 longer to 8 × 1.5 cm, 2 smaller to 3.5 × 0.5 cm; nut ovoid, ca. 5 × 12 mm. Fl. Feb-May, fr. May-Jul.
More
A tree. It loses some of its leaves during the year. It grows about 50 m high. The bark is rough and reddish brown with deep wide cracks along its length. The leaves have stalks. The stalks are 2-5 cm long. The leaves are 10-20 cm long by 5-13 cm wide. They are oval and leathery. They taper to the tip. They are shiny when mature. The base is rounded or heart shaped. The flowers are yellow. They are in open flower arrangements in the axils of leaves or at the ends of branches. The flowers are small but in large numbers. The fruit is oval. It is 10-15 cm across. It is pale yellowish or green in colour. It is hairy with wing-like sepals at the base. It does not split open. It is one seeded with 5 unequal wings. The seed is oval with fleshy green seed leaves. These contain fatty oil.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 40.0
Root system tap-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway c3

Environment

A rare plant in China, it is gregarious in savannah woodlands at elevations below 800 metres in south-eastern Xizang. Often the main tree in forests of Nepal at elevations up to 1,400 metres.
More
It is a subtropical plant. In Nepal plants grow to about 1400 m altitude. It grows on the outer ridges of hills. It suits hardiness zones 10-12.
Light 7-9
Soil humidity 4-6
Soil texture 1-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 10-12

Usage

Roasted seeds are eaten. They are dried and ground into flour and then dried again and used for bread or with other ingredients like salt added. The seed oil remains solid at room temperature and after processing can substitute for Cocoa butter in the Chocolate industry. The fruit are occasionally eaten. CAUTION: The prolonged cooking and drying suggest some toxic substance needs to be removed. They contain tannins or phlobaphene. The flowers are used in curries.
Uses fodder food material medicinal oil seasoning timber wood
Edible flowers fruits leaves seeds
Therapeutic use Analgesics (bark), Anemia (bark), Anthelmintics (bark), Anti-bacterial agents (bark), Antipruritics (bark), Astringents (bark), Cough (bark), Diarrhea (bark), Dysentery (bark), Earache (bark), Epilepsy (bark), Gonorrhea (bark), Hemorrhage (bark), Hyperhidrosis (bark), Infection (bark), Insecticides (bark), Leprosy (bark), Leukorrhea (bark), Sialorrhea (bark), Tooth diseases (bark), Ulcer (bark), Wounds and injuries (bark), Astringents (flower), Diarrhea (flower), Dysentery (flower), Epilepsy (flower), Insecticides (flower), Sialorrhea (flower), Tooth diseases (flower), Aphrodisiacs (fruit), Diarrhea (fruit), Disorder of ejaculation (fruit), Pain (fruit), Skin diseases (fruit), Thirst (fruit), Ulcer (fruit), Analgesics (leaf), Anemia (leaf), Anthelmintics (leaf), Anti-bacterial agents (leaf), Antipruritics (leaf), Astringents (leaf), Cough (leaf), Diarrhea (leaf), Dysentery (leaf), Earache (leaf), Epilepsy (leaf), Gonorrhea (leaf), Hemorrhage (leaf), Hyperhidrosis (leaf), Infection (leaf), Insecticides (leaf), Leprosy (leaf), Leukorrhea (leaf), Sialorrhea (leaf), Tooth diseases (leaf), Ulcer (leaf), Wounds and injuries (leaf), Analgesics (plant exudate), Anti-bacterial agents (plant exudate), Anti-infective agents, local (plant exudate), Anti-inflammatory agents (plant exudate), Anti-obesity agents (plant exudate), Antipruritics (plant exudate), Aphrodisiacs (plant exudate), Appetite stimulants (plant exudate), Arthralgia (plant exudate), Asthma (plant exudate), Astringents (plant exudate), Bronchitis (plant exudate), Burns (plant exudate), Diarrhea (plant exudate), Digestive system diseases (plant exudate), Dysentery (plant exudate), Disorder of ejaculation (plant exudate), Expectorants (plant exudate), Eye burn (plant exudate), Eye diseases (plant exudate), Eye pain (plant exudate), Fever (plant exudate), Flatulence (plant exudate), Fractures, bone (plant exudate), Furunculosis (plant exudate), Gonorrhea (plant exudate), Headache (plant exudate), Hemorrhage (plant exudate), Herpes simplex (plant exudate), Hyperhidrosis (plant exudate), Menorrhagia (plant exudate), Neuralgia (plant exudate), Splenomegaly (plant exudate), Toothache (plant exudate), Tuberculosis (plant exudate), Tuberculosis, pulmonary (plant exudate), Ulcer (plant exudate), Wound healing (plant exudate), Wounds and injuries (plant exudate), Astringents (seed), Diarrhea (seed), Dysentery (seed), Epilepsy (seed), Insecticides (seed), Sialorrhea (seed), Tooth diseases (seed), Ache(Stomach) (unspecified), Aftosa (unspecified), Anodyne (unspecified), Anus (unspecified), Ardor (unspecified), Chest (unspecified), Colic (unspecified), Cosmetic (unspecified), Diarrhea (unspecified), Dysentery (unspecified), Dysuria (unspecified), Epididymitis (unspecified), Fever (unspecified), Fistula (unspecified), Gravel (unspecified), Hemiplegia (unspecified), Incense (unspecified), Ophthalmia (unspecified), Prolapse (unspecified), Skin (unspecified), Smallpox (unspecified), Soap (unspecified), Sore (unspecified), Spasm (unspecified), Tumor (unspecified), Whitlow (unspecified), Cancer (unspecified), Orchitis (unspecified), Tetanus (unspecified), Tubercle (unspecified), Anthrax (unspecified), Burn (unspecified), Carbuncle (unspecified), Hydrocoele (unspecified), Rinderpest (unspecified), Syphilis (unspecified), Chancre (unspecified), Anti-infective agents, local (unspecified), Skin diseases (unspecified), Abscess (wood), Anemia (wood), Burns (wood), Deafness (wood), Ear diseases (wood), Edema (wood), Fractures, bone (wood), Genital diseases, female (wood), Goiter (wood), Helminthiasis (wood), Hematologic diseases (wood), Leprosy, lepromatous (wood), Metabolism (wood), Anti-poisoning (wood), Pruritus (wood), Syphilis (wood), Ulcer (wood)
Human toxicity -
Animal toxicity -

Cultivation

Plants are grown from seed.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment soaking
Minimum temperature (C°) -
Optimum temperature (C°) 28 - 34
Size -
Vigor -
Productivity -

Images

Shorea robusta unspecified picture

Distribution

Shorea robusta world distribution map, present in Bangladesh, Bhutan, China, India, Kenya, Myanmar, and Nepal

Conservation status

Shorea robusta threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:321425-1
WFO ID wfo-0001046459
COL ID 4X52Q
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Dryobalanops robusta Shorea robusta Vatica robusta