| Siamese sal | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Malvales |
| Family: | Dipterocarpaceae |
| Genus: | Shorea |
| Species: | S. obtusa |
| Binomial name | |
| Shorea obtusa | |
| Synonyms [2] | |
| |
Shorea obtusa, the Siamese sal, [3] is a species of hardwood tree in the family Dipterocarpaceae, native to Southeast Asia.
Shorea obtusa is native to Myanmar, Thailand, Cambodia, Laos, and Vietnam. It grows in relatively dry areas, often sharing the same habitat with Dipterocarpus obtusifolius , as well as oaks Quercus kerrii , Quercus kingiana , and pines, up to 1,300 metres (4,300 ft) altitude in Thailand. Another description of the habitat is that it grows in the clear forests at 150–1,300 m (500–4,300 ft). [4]
Shorea obtusa is a deciduous tropical tree, growing 10–30 m (30–100 ft) tall. It flowers from January to July; the distinctive yellow flowers droop in clusters, with long narrow petals. [5] It grows stunted in savannas. [6]
As well as an export timber source, the wood is graded as first (highest) category in Cambodia. It is a very hard timber and is used to make columns, bridges, sleepers, and for other various construction purposes. [4] Exposed in the open, it may last 10–15 years, though if indoors it may last 50–60 years. The resin, from the trunk, is used to make torches, while the bark is part of a malaria remedy. The tree is the most preferred source of firewood in some areas of Kompong Chhnang Province, Cambodia. [7]
Shorea obtusa has been assessed as Near Threatened on the IUCN Red List. The species is threatened by logging for timber and land conversion for agriculture. The prior assessment in 1998 had assessed the species as Least concern. [1]
Dipterocarpus tuberculatus is a species of tree in the family Dipterocarpaceae found in Bangladesh, Myanmar, Thailand, Cambodia, Laos and Vietnam. The tree is found in clear forests of plains, at altitudes up to 800–1,000 m (2,600–3,300 ft). It grows to a height of 5–25 m (16–82 ft).
Payena acuminata is a tree in the family Sapotaceae. The specific epithet acuminata means 'tapering to a narrow point', referring to the leaf apex.
Shorea parvifolia is a species of tree in the family Dipterocarpaceae, commonly known as light red meranti and white lauan. It is native to tropical southeastern Asia.
Shorea amplexicaulis is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet amplexicaulis means 'clasping the stem' and refers to the position of the leaf stalk or petiole.
Richetia angustifolia is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet angustifolia means 'narrow-leaved'.
Richetia collaris is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet collaris means 'neck' and refers to the calyx of the fruit.
Shorea coriacea is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet coriacea means 'leathery' and refers to the leaves.
Richetia faguetioides is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet faguetioides refers to its similarity to Richetia faguetiana.
Shorea fallax is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet fallax means "deceptive" and refers to the species initially being considered to be Shorea scaberrima.
Shorea ferruginea is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet ferruginea means 'rust-coloured', referring to the leaf when dry.
Shorea havilandii is a tree in the family Dipterocarpaceae, native to Borneo. It is named for the English naturalist George Darby Haviland.
Shorea mecistopteryx is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet mecistopteryx means 'big wing', referring to the fruit's lobes.
Richetia patoiensis is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet patoiensis refers to Bukit Patoi, a hill in Brunei.
Shorea pilosa is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet pilosa means 'hairy', referring to the indumentum.
Shorea pinanga is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet pinanga is derived from a local name for the species.
Shorea retusa is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet retusa means 'notched', referring to the apex of the leaf.
Shorea scrobiculata is a tree in the family Dipterocarpaceae. The specific epithet scrobiculata means 'sawdust-like', referring to the indumentum of the flowers.
Shorea rubra is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet rubra means 'red' and refers to the underside of the leaf.
Shorea scaberrima is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet scaberrima means 'very rough', referring to the indumentum.
Shorea scabrida is a tree in the family Dipterocarpaceae. The specific epithet scabrida means 'rough', referring to the indumentum.
