| Engelhardia rigida | |
|---|---|
| Conservation status | |
 Least Concern (IUCN 3.1) | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fagales |
| Family: | Juglandaceae |
| Genus: | Engelhardia |
| Species: | E. rigida |
| Binomial name | |
| Engelhardia rigida Blume | |
| Synonyms | |
| |
Engelhardia rigida is a tree in the family Juglandaceae. The specific epithet rigida means 'stiff', referring to the leaves.
Description
Engelhardia rigida grows up to 50 m (160 ft) tall, with a trunk diameter of up to 90 cm (40 in). It has buttresses up to 3 m (10 ft) high and extending out to 2 m (7 ft). The bark is reddish to grey. The papery leaves are elliptic to ovate and measure up to 7.1 cm (2.8 in) long, occasionally to 16.5 cm (6.5 in) long. The fruits are winged. The tree is sometimes harvested for its timber in Papua New Guinea.
Distribution and habitat
Engelhardia rigida is native to Borneo, Java, Sulawesi, the Maluku Islands, the Philippines and New Guinea. Its habitat is mixed dipterocarp forests, to elevations of 2,500 m (8,000 ft). It is threatened by conversion of its habitat for urban development and agriculture.
References
- ^ Jimbo, T. (2023). "Engelhardia rigida". IUCN Red List of Threatened Species. 2023: e.T33345A66796872. doi:10.2305/IUCN.UK.2023-1.RLTS.T33345A66796872.en. Retrieved 23 August 2024.
- ^ "Engelhardia rigida Blume". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 20 August 2024.
- ^ Campbell-Gasis, E. J. F. (1995). "Engelhardia Lesch. ex Blume". In Soepadmo, E.; Wong, K. M. (eds.). Tree Flora of Sabah and Sarawak. Vol. 1. Forest Research Institute Malaysia. pp. 240–241. ISBN 983-9592-34-3.
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