Host an Event Volunteer Join Tickets

Support the plant database you love!


Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

Enter a Plant Name:
Or you can choose a plant family:

Hibiscus arnottianus ssp. immaculatus

Hibiscus arnottianus A. Gray ssp. immaculatus (Roe) D.M. Bates

Aloalo, Kokio Keokeo, Molokai White Hibiscus, White Rosemallow

Malvaceae (Mallow family)

Synonym(s): Hibiscus immaculatus


USDA Native Status: HI (N)


From the Image Gallery

No images of this plant

Plant Characteristics

Duration: Perennial
Habit: Shrub , Tree
Fruit Type: Capsule
Size Notes: Up to about 30 feet tall.

Bloom Information

Bloom Color: White
Bloom Time: Jan , Feb , Mar , Apr , May , Jun , Jul , Aug , Sep , Oct , Nov , Dec
Bloom Notes: White petals with white staminal column. One of only two Hibiscus species known to have fragrant flowers.


Native Distribution: Listed as endangered in the United States.
Native Habitat: Wet to mesic forests.

U.S. Fish & Wildlife Service Threatened & Endangered Status

USFWS Species Profile: Q2BC
Status: Endangered
Historic Range: U.S.A. (HI)
Critical Habitat: 17.96(a)
Special Rules: N/A
This information is derived from the U.S. Fish & Wildlife Serrvice Environmental Conservation Online System.


Bibref 1798 - Manual of the Flowering Plants of Hawaii, Revised Edition (1999) Wagner, W.L.; Herbst, D.R.; Sohmer, S.H.

Search More Titles in Bibliography

Web Reference

Webref 31 - Native Plants Hawai’i (2018) University of Hawaii
Webref 44 - Plants of Hawaii (1997) Starr Environmental

Additional resources

USDA: Find Hibiscus arnottianus ssp. immaculatus in USDA Plants
FNA: Find Hibiscus arnottianus ssp. immaculatus in the Flora of North America (if available)
Google: Search Google for Hibiscus arnottianus ssp. immaculatus


Record Modified: 2020-11-02
Research By: CBR

Go back