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Remy's cyanea

Cyanea remyi

Also called Haha

Remy's cyanea
Photo: John Game, CC BY 2.0

Cyanea remyi is a rare Hawaiian shrub in the bellflower family, known only from Kauai and now critically few in the wild. It is not a plant most home gardeners will find in trade, so care guidance is limited to general cultivation of wet-tropical Cyanea.

Family
Campanulaceae (Campanul family)
Grows as
Shrub
Light
Part shade
Water
Keep the soil consistently moist but never waterlogged, as it grows in wet tropical forest.
Soil
Rich, well-drained but moisture-retentive humus-based mix.
Temperature
18–27 °C; protect below 10 °C
How easy
Hard
Native range
Hawaiian Is. (Kaua‘i)
Climate
wet tropical

About

Cyanea remyi is a rare species of flowering plant in the bellflower family known by the common name Remy's cyanea. It is endemic to Hawaii, where it is known only from the island of Kauai. It is a federally listed endangered species of the United States. Like other Cyanea, it is known as haha in Hawaiian.

This plant was very poorly known before 1987, with only two specimens ever having been collected, and no more occurrences of the plant seen since 1916. Then, in 1987, the species was rediscovered when a population of up to 50 plants was found next to the Wailua River. This population was decimated by Hurricane Iniki in 1992, leaving few plants alive. In 2000, eight plants were observed, and in 2006 only a single individual remained. In the meantime other small populations were found, but several have since been destroyed in events such as flash floods.

Other Cyanea plants

Honolulu cyanea · 'aku · Gingerleaf cyanea · Spleenwort cyanea · O'ahu cyanea · Treetrunk cyanea · Koolau Range rollandia · Long-foot cyanea · Ravine cyanea · Eleele cyanea · Cyanea gibsonii · Smooth cyanea

Text excerpted from the Wikipedia article Cyanea remyi by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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