Back صابونية أواهو Arabic Sapindus oahuensis Bulgarian Sapindus oahuensis CEB Sapindus oahuensis Spanish فندوق صابونی هاوایی Persian Sapindus oahuensis Swedish Sapindus oahuensis Vietnamese Sapindus oahuensis WAR
| Sapindus oahuensis | |
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Sapindales |
| Family: | Sapindaceae |
| Genus: | Sapindus |
| Species: | S. oahuensis
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| Binomial name | |
| Sapindus oahuensis | |
| Synonyms | |
Sapindus oahuensis is a species of tree in the soapberry family, Sapindaceae. It is endemic to Hawaii, where it is limited to Kauaʻi (Waimea Canyon) and Oʻahu (Waiʻanae and Koʻolau Ranges).[4] Its common names include Āulu,[5] Oahu soapberry, alulu, kaulu, and lonomea.[2]
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It can be found in dry and moist forest habitat at elevations of 200 to 2000 feet.[4]
Āulu grows up to 18 m (59 ft) tall with a trunk diameter of 0.5 m (1.6 ft). It has alternately arranged, hairless leaves which have simple blades, unlike its congener, the wingless soapberry (S. saponaria), which has compound leaves. The leaves are somewhat thick and green with a yellow midvein. They are up to 15 centimeters long. The inflorescence is a panicle of many greenish yellow, bell-shaped male and female flowers. The fruit is a shiny, leathery berry roughly 2 centimeters long, containing one large black seed.[5]
The seeds were strung and used in leis.[5]
- ^ World Conservation Monitoring Centre (1998). "Sapindus oahuensis". IUCN Red List of Threatened Species. 1998: e.T31364A9622279. doi:10.2305/IUCN.UK.1998.RLTS.T31364A9622279.en. Retrieved 14 November 2021.
- ^ a b "Sapindus oahuensis". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 2011-10-04.
- ^ "Sapindus oahuensis". Integrated Taxonomic Information System. Retrieved 2011-10-04.
- ^ a b "Sapindus oahuensis Hillebrand (Sapindaceae)". National Tropical Botanical Gardens. Retrieved 2009-11-13.
- ^ a b c Little, E. L. and R. G. Skolmen. Āulu, Sapindus oahuensis Hillebr. Common Forest Trees of Hawaii (Native and Introduced). Agriculture Handbook no. 679. USDA Forest Service, 1989.