CPC Plant Profile: Spreading Schiedea
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Plant Profile

Spreading Schiedea (Schiedea spergulina var. leiopoda)

Schiedea spergulina, Kauai. Photo Credit: National Tropical Botanical Garden
Description
  • Global Rank: T1 - Critically Imperiled
  • Legal Status: Federally Endangered
  • Family: Caryophyllaceae
  • State: HI
  • Nature Serve ID: 159766
  • Date Inducted in National Collection: 02/09/1992

Participating Institutions
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Updates
Center for Plant Conservation
  • 12/02/2021
  • Demographic Research

The purpose of the project is to augment the exisitng population of Schiedea spergulina var. leiopoda at Lawai Valley, Kauai on land owned by the National Tropical Botanical Garden. Invasive plant species were controlled - including Fourcraea foetida, Leucaena leucocephala, Panicum maximum, Rhynchelytrum repens, and Schinus terebinthifolius. Seeds rom wild plants were collected and propagated at the NTBG nursery. Aprroximately 400 small plants were planted back into the site in 2007-2008. The planting site is a narrow ridge above a 500+ foot cliff. Ledges on this cliff are primary habitat for this species. A demographic study of this population was initiated in 2008. Outplant survival was approximately 75% after 1 year. New seedlings recruited in 2008 apparently as a result of invasive removal along the cliff edge. Outplants flowered in their first year after germination.

Center for Plant Conservation
  • 12/02/2021
  • Reintroduction

The purpose of the project is to augment the exisitng population of Schiedea spergulina var. leiopoda at Lawai Valley, Kauai on land owned by the National Tropical Botanical Garden. Invasive plant species were controlled - including Fourcraea foetida, Leucaena leucocephala, Panicum maximum, Rhynchelytrum repens, and Schinus terebinthifolius. Seeds rom wild plants were collected and propagated at the NTBG nursery. Aprroximately 400 small plants were planted back into the site in 2007-2008. The planting site is a narrow ridge above a 500+ foot cliff. Ledges on this cliff are primary habitat for this species. A demographic study of this population was initiated in 2008. Outplant survival was approximately 75% after 1 year. New seedlings recruited in 2008 apparently as a result of invasive removal along the cliff edge. Outplants flowered in their first year after germination.

Nature Serve Biotics
  • 05/02/2017

Endemic to southern Kauai. There is only one currently known occurrence consisting of fewer than 100 plants. This occurrence is threatened by the invasion of alien plant species.

  • 01/01/2010

weeds landslides competition with alien plant species rock slides stochastic extinction and/or reduced reproductive vigor, feral goats

  • 01/01/2010

< 100 individuals in 1 site, Kauai 1 population of ca. 50-100 individuals (Kauai)

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Photos
Nomenclature
Taxon Schiedea spergulina var. leiopoda
Authority Sherff
Family Caryophyllaceae
CPC Number 8478
ITIS 530259
USDA SCSPL
Common Names Spreading Schiedea | canyon schiedea
Associated Scientific Names Schiedea spergulina var. leiopoda | Schiedea spergulina | Schiedea spergulina var. major
Distribution NA
State Rank
State State Rank
Hawaii S1
Habitat

usually found on bare rock outcrops or sparsely vegetated portions of rocky cliff faces or cliff bases in diverse lowland mesic forests at elevations between 590 and 3,000 ft.

Ecological Relationships

Pollinators
Common Name Name in Text Association Type Source InteractionID
Reintroduction
Lead Institution State Reintroduction Type Year of First Outplanting
National Tropical Botanical Garden Hawaii Reinforcement 2007

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