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Hibiscus brackenridgei

Hibiscus brackenridgei A. GrayHibiscus brackenridgei mao hau hele is a tall shrub (up to 10 m/33 ft) with bright yellow flowers, closely related to the widespread H. divaricatus. Two subspecies are recognized: H. b. brackenridgei, a sprawling shrub to an erect tree found in dry forests and low shrublands at elevations of 4002,600 ft (120790 m) on Molokai, Lānai, Maui, and Hawaii;and H. b. mokuleianus, a tree from dry habitats on Kauai and the Waianae Range on Oʻahu. This species is listed as an endangered species by the USFWS. The yellow flower of this species was made the official state flower of Hawaii on 6 June 1988, and although endangered in its natural habitats, has become a moderately popular ornamental in Hawaiian yards.


USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)