Semecarpus euodiifolius is a flowering plant in the family Anacardiaceae. It is endemic to Borneo.
Description Semecarpus euodiifolius grows as a tree up to tall, with a trunk diameter of up to . The smooth bark is brown. The leathery leaves are oblong or elliptic and measure up to long and to wide. The , in clusters or , may feature male and female flowers on the same inflorescence, and measure up to long. The round fruits are hairy and measure up to in diameter.
Taxonomy Semecarpus euodiifolius was described by Malaysian botanist Kizhakkedathu Mathai Kochummen in Sandakania in 1996. The type specimen was collected in Beaufort District in Sabah, Borneo. The specific epithet euodiifolius means 'Euodia leaf', referring to the leaves' resemblance to those of the genus Euodia.
Distribution and habitat Semecarpus euodiifolius is endemic to Borneo, where it is known only from Sabah. Its habitat is in lowland forests, at elevations of .
Conservation Semecarpus euodiifolius has been assessed as critically endangered on the IUCN Red List. Its habitat is at risk of conversion to palm oil plantations and for agriculture. Forest fires are also a risk. The species is present in Gunung Lumaku Forest Reserve, a totally protected area.
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