Running Glade Clover / Center For Plant Conservation
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Plant Profile

Running Glade Clover (Trifolium calcaricum)

Trifolium calcaricum in flower. Photo Credit: Matthew Albrecht
  • Global Rank: G1 - Critically Imperiled
  • Legal Status: N/A
  • Family: Fabaceae
  • State: TN, VA
  • Nature Serve ID: 158179
  • Lifeform: Forb/herb
  • Date Inducted in National Collection: 07/05/2022

Running Glade Clover is known from just six occurrences in Tennessee and Virginia in the Cumberland Gap region. The flowers of this clover species are a milky white. This species was first observed by Dr. Augustin Gattinger in the late 1800's and misidentified as T. stoloniferum. In 1992, it was described as a distinct species, Trifolium calcaricum.

Where is Running Glade Clover (Trifolium calcaricum) located in the wild?


Often in cedar glades or forest margins near cedar glades with limestone substrate


Often in cedar glades with limestone substrate in the Cumberland Gap region.

States & Provinces:

Running Glade Clover can be found in Tennessee, Virginia

Which CPC Partners conserve Running Glade Clover (Trifolium calcaricum)?

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

Tina Stanley
  • 11/27/2023
  • Living Collection

A subset of plants propagated by a citizen volunteer from a site owned by a private landowner in Tennessee were given to a local botanic garden (Cheekwood Botanic Gardens) to create an interpretive rare plant display.

Tina Stanley
  • 11/27/2023
  • Reintroduction

With encouragement from the Tennessee Division of Natural Areas, a citizen volunteer initiated contact with a private landowner, secured permission to propagate plants from the site, and established 18 different reintroduction sites in nearby parks and state natural areas.

Tina Stanley
  • 07/14/2022
  • Seed Collection

As of July 2022, Southeastern Grasslands Initiative had collected 3 accessions of Trifolium calcaricum from populations in Tennessee.

Tina Stanley
  • 07/14/2022
  • Orthodox Seed Banking

As of July 2022, Southeastern Grasslands Initiative holds 1,238 seeds from 1 accession (wild provenance only).

Quinn Long
  • 01/01/2010

At least in Tennessee, the habitat for Trifolium calcaricum lies within an area of rapid growth and development.


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Taxon Trifolium calcaricum
Authority Collins & Wieboldt
Family Fabaceae
CPC Number 5054
ITIS 507211
Duration Perennial
Common Names Running Glade Clover
Associated Scientific Names Trifolium calcaricum ssp. nov. ined. | Trifolium calcaricum
Distribution Often in cedar glades with limestone substrate in the Cumberland Gap region.
State Rank
State State Rank
Tennessee S1
Virginia S1
Ecological Relationships

Lead Institution State Reintroduction Type Year of First Outplanting
Tennessee Reintroduction 2016+2017+2018

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