Delissea undulata ssp. undulata

Common Names:
oha, undulata delissea
Growth Habit:
CPC Number:
Profile Contributors:
Nellie Sugii
Fully Sponsored

Reference Links

ITIS - Tropicos - USDA Plants - Fish & WildLife

Participating Institutions

The following Participating Institutions are custodians for this species in the CPC National Collection:
Harold L. Lyon Arboretum

The conservation of Delissea undulata ssp. undulata is fully sponsored.
Nellie Sugii contributed to this Plant Profile.


Delissea undulata subspecies undulata is an unusual palm-like tree that was observed in the late nineteenth century on western Hawaii in North and South Kona. It was last found in South Kona at Pu`u Lehua in 1971, but was later thought to be extinct. In 1992, a single adult individual was rediscovered at Pu`u Waawaa, Hawaii. This lone plant probably survived as a result of being pushed over the entrance of a collapsing lava tube, making it inaccessible to grazing cattle. This wild individual continues to be threatened by extinction due to its precarious growing situation.

Luckily, this plant was observed in flower in August 1992, which resulted in fruit production and fertile seed. Approximately 50 seedlings were outplanted within 3 exclosures at Pu`u Waawaa, Waihou
Forest Reserve and in July of 1995, these outplanted individuals were observed in flower.

Distribution & Occurrence


Conservation, Ecology & Research