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Plant Profile

St. John's Rollandia (Cyanea st.-johnii)

Global Rank: G1 - Critically Imperiled
Legal Status: Federally Endangered
Family: Campanulaceae
State: HI
Nature Serve ID: 140921
Lifeform: Shrub
Date Inducted in National Collection:

Description:

This woody, unbranched shrub has curled leaves and white tubular flowers, with violet on its interior.

Where is St. John's Rollandia (Cyanea st.-johnii) located in the wild?

Habitat:

Habitats of this Cyanea species' are described as wet, windswept slopes and ridges from 690 to 850 m in `ohi`a mixed shrubland or `ohi`a-uluhe shrubland.

Distribution:

Its native range encompasses the Ko`olau Mountains of O`ahu, with roughly five populations last observed in 1995. It is estimated that there less than 20 individuals left of these five populations today.

States & Provinces:

St. John's Rollandia can be found in Hawaii

Which CPC Partners conserve St. John's Rollandia (Cyanea st.-johnii)?

Harold L. Lyon Arboretum

Not Sponsored

Assigned 06/09/17

CPC's Plant Sponsorship Program provides long term stewardship of rare plants in our National Collection. We are so grateful for all our donors who have made the Plant Sponsorship Program so successful. We are in the process of acknowledging all our wonderful plant sponsorship donors on our website. This is a work in progress and will be updated regularly.

Conservation Actions

Clarice Mendoza

09/15/2017

The decrease in this species' population today is due to unruly feral pigs in the area and competition with alien plant species, such as Koster's curse, a noxious weedy shrub from the American Neotropics.

Nellie Sugii

01/01/2010

Habitat degradation and/or destruction by feral pigs, potential predation by rats, competition with the noxious alien plant Koster's curse, and risk of extinction from naturally-occurring events and/or reduced reproductive vigor due to the small number are threats to this species.

Nellie Sugii

01/01/2010

There are five populations with 40-50 individuals remaining.