CPC Plant Profile: Hidden-petaled Abutilon
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Plant Profile

Hidden-petaled Abutilon (Abutilon eremitopetalum)

This closeup shot shows the heart-shaped leaves and the flowers growing from the leaf axils. Photo Credit: Nellie Sugii
Description
  • Global Rank: G1 - Critically Imperiled
  • Legal Status: Federally Endangered
  • Family: Malvaceae
  • State: HI
  • Nature Serve ID: 157878
  • Date Inducted in National Collection: 01/01/1998

Abutilon eremitopetalum is endemic to the dry forest habitats of Lana`i. Since its discovery in the 1930's, it has always been very rare and has been known only in small, widely scattered colonies. By the early 1980s, the taxon was generally considered extinct. In 1987, 60-70 plants were discovered on a slope in Kahea Gulch. Today, this population still exists with approximately 100 individuals. Abutilon eremitopetalum is in the mallow family (Malvaceae). It is a shrub with grayish-green, densely hairy, heart-shaped leaves that are 7-12 cm long. The flowers of this plant are cup-shaped and borne one or two on stems arising from the leaf axil. This unusual flower has petals that are bright green on the upper surface and reddish on the on the lower surface that are hidden within the calyx.

Participating Institutions
Updates
  • 07/31/2020
  • Propagation Research

Propagation. Genetic studies. Physiological studies. Seed banking and germplasm preservation. (USFWS 1995)

  • 07/31/2020
  • Genetic Research

Propagation. Genetic studies. Physiological studies. Seed banking and germplasm preservation. (USFWS 1995)

  • 07/31/2020
  • Seed Collection

Seed storage. Propagation via seed. (USFWS 1995)

  • 07/31/2020
  • Living Collection

Ex situ plantings at Waimea Arboretum, National Tropical Botanical Garden and Amy Greenwell Botanical Garden (USFWS 1995).

Nature Serve Biotics
  • 05/02/2017

Endemic to the windward side of the island of Lanai. Only one population is currently known. When first discovered in 1987, this population consisted of 60-70 plants, but by the mid-1990's it had been more than halved. However, the population has since been fenced from introduced deer, and there has been abundant recruitment within the exclosure. In addition to deer, the species is threatened by introduced mouflon sheep and alien plants.

David Orr
  • 01/01/2010

Alien plant competition. Browsing and trampling by axis deer. Fire. Stochastic extinction caused by low numbers. Drought. Possibly mismanagement. Loss of pollinators. (USFWS 1995)

David Orr
  • 01/01/2010

Lana`i, 1 population, approximately 100 individuals (USFWS 2001).

David Orr
  • 01/01/2010

Seed storage. Propagation via seed. (USFWS 1995)

David Orr
  • 01/01/2010

Ex situ plantings at Waimea Arboretum, National Tropical Botanical Garden and Amy Greenwell Botanical Garden (USFWS 1995).

David Orr
  • 01/01/2010

Fencing of remaining population. Weed control. Monitoring. Fire protection. (USFWS 1995) and (USFWS 2001)

David Orr
  • 01/01/2010

Propagation. Genetic studies. Physiological studies. Seed banking and germplasm preservation. (USFWS 1995)

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Photos
Nomenclature
Taxon Abutilon eremitopetalum
Authority Caum
Family Malvaceae
CPC Number 255
ITIS 21678
USDA ABER
Common Names Hidden-petaled Abutilon | hiddenpetal Indian mallow
Associated Scientific Names Abutilon eremitopetalum | Abortopetalum eremitopetalum | Abutilon cryptopetalum
Distribution Found only on the island of Lana`i in Kahea Gulch (USFWS 1995).
State Rank
State State Rank
Hawaii S1
Habitat

Dry forest, 240 to 320 meters elevation (USFWS 1995).

Ecological Relationships

Reproductive cycles, longevity, specific environmental requirements, and limiting factors are unknown (USFWS 1995).

Pollinators
Common Name Name in Text Association Type Source InteractionID
Bees
Bees Confirmed Pollinator Link
Butterflies & Moths
Butterflies Confirmed Pollinator Link
Birds
Birds Confirmed Pollinator Link

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