William Bicknell Storey

Cyrtandra waianaeensis, the Waiʻanae cyrtandra, is a species of flowering plant in the family Gesneriaceae, native to Oahu, Hawaii. A shrubby tree reaching 20 ft (6 m), it is recommended as an accent or specimen plant due to its textured greenish-yellow to green foliage. Its habitats include disturbed mesic valleys, diverse mesic forests, and wet forests.

Cyrtandra kaulantha, the Waikane valley cyrtandra, is a species of flowering plant in the family Gesneriaceae, native to Oahu, Hawaii. It is of hybrid origin, with the parents possibly being C. grandiflora and C. hawaiensis.

Cyrtandra viridiflora is a rare species of flowering plant in the African violet family. It is endemic to Hawaii, where it is known only from the northern Koolau Mountains of Oahu. By 2003 there were nine small populations remaining, for a total of 69 plants. It was federally listed as an endangered species in 1996. Like other Hawaiian Cyrtandra it is called ha`iwale. This plant is a shrub growing 0.5 to 2 meters tall with hairy leaves and green and white flowers. It grows in the cloud zone of the mountains in wet, windy habitat. This habitat is degraded by several forces, including feral

Cyrtandra subumbellata is a rare species of flowering plant in the African violet family known by the common name parasol cyrtandra. It is endemic to Hawaii, where it is known only from the Koʻolau Mountains on the island of Oahu. By 2008 there were three known populations containing 110 plants, or possibly more. It was federally listed as an endangered species in 1996. Like other Hawaiian Cyrtandra it is called ha`iwale. This plant grows in wet forests, often near streams. It is a shrub growing 2 to 3 meters tall and bearing white flowers. The habitat is degraded by a number of forces,

Cyrtandra dentata is a rare species of flowering plant in the African violet family known by the common names mountain cyrtandra and sharp-toothed cyrtandra. It is endemic to Oahu in Hawaii, where the most recent count estimates 1640 plants occurring in the Waianae Mountains and Koʻolau Mountains. It is a shrub which can reach 5 meters tall and bears white flowers. It was federally listed as an endangered species in 1996. Like other Hawaiian Cyrtandra it is called ha`iwale. One threat to the species is habitat degradation caused by feral pigs. Some individuals of this species are protected

Cyrtandra crenata is a rare species of flowering plant belonging to the African violet family known by the common name Kahana Valley cyrtandra. It is endemic to Oahu in Hawaii, where it is known to be found only from the Koolau Mountains. It has not been seen since 1947, however, and it is feared to be extinct. The habitat is steep and inaccessible in some areas, so it is possible that specimens of this species still exist in the wild. It was federally listed an endangered species of the United States in 1994. This shrub grows 1 to 2 meters tall and bears white flowers. Like other Hawaiian

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