Plants of Hawaii Volcanoes National Park

Scientific Name Sapindus saponaria L.
Family Sapindaceae (Soapberry family)

Other Names Common: soapberry; Hawaiian: a`e, manele
Status Indigenous
Distribution & Habitat Hawaii: 900 - 1,370 m.

Found in mesic forests on Hualalai, Mauna Loa and Kilauea, Hawai`i (Wagner, et al. 1990: 1229).

Distribution in the Park is along the Mauna Loa Strip Road in Kipuka Puaulu and Kipuka Ki (Mueller-Dombois et al. year:58, Lamoureux year:47).

Elsewhere: Mexico, South America, various Pacific Islands, Africa (Wagner, et al. 1990: 1229).

Locations in this Guide Kipuka Puaulu, Mauna Loa Strip Road
General Appearance
These are large trees, with individuals becoming up to 25 m tall.

They are deciduous.

Kipuka Puaulu

Kipuka Puaulu

The bark is pale brown and falls off in large scales from mature trees (Wagner, et al. 1990: 1229). Kipuka Puaulu
There may be a lot of juveniles found around the base of the parent plants. Kipuka Puaulu

Kipuka Puaulu

Leaves
The leaves are 6 to 10 inches long and are even pinnately-compound with six to twelve leaflets.

A branch from an adult is on the right.

The two pictures below shows a juvenile.

Kipuka Puaulu

Kipuka Puaulu

Kipuka Puaulu
Flowers & Fruits
The flowers are interminal panicles that are 10 to 20 cm long.  The petals are unequal and obovate and strongly concave and about 2 mm long (Wagner, et al. 1990: 1229).
The fruit are fleshy, globose and range from 1.7 to 2 cm long.  The seeds are redish brown to black (Wagner, et al. 1990: 1229). Kipuka Puaulu
Kipuka Puaulu Kipuka Puaulu
Kipuka Puaulu
Phenology This is one of the few seasonally deciduous native trees in Hawaii, although interestingly, it is reported to be an evergreen tree elsewhere (Lamoureux year: 47).  The trees loose their leaves for about a month between January and April  (Lamoureux year: 47). 

Phenology Notes

Kipuka Puaulu Extremely abundant fruits (the trail is heavily littered beneath the adult trees). 7/13/2000
Kipuka Puaulu No fruits. 1/7/01
Kipuka Puaulu No fruits. 5/6/01
Strip Road in Kipuka Ki Most trees without leaves. A few fruit on the forest floor. Deep litter. 5/8/01
Kipuka Puaulu No fruits. 8/4/01
Natural History
Conservation
Miscellaneous Photos
A dense Sapindus canopy can produce abundant litter.  This appears to reduce the growth of other species on the forest floor.
Other Notes

References
Links to Other Sites

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Last Updated: 08/05/03

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