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Plant Profile

Heartleaf Leafcup (Polymnia cossatotensis)

Polymnia cossatotensis in bloom. Photo Credit: Quinn Long

Global Rank: G1 - Critically Imperiled
Legal Status: N/A
Family: Asteraceae
State: AR
Nature Serve ID: 135089
Lifeform: Forb/herb
Date Inducted in National Collection:

Description:

This species was discovered in 1988 in the Ouachita Mountains, Arkansas. All five known populations are within the Ouachita National Forest in an area less than 18km from one another. Two of the populations are quite small, and three are large. The larger populations seem to have remained stable while the smaller populations have declined during periods of drought. The inflorescence of this species doesn't contain a pappus, greatly limiting wind dispersal capacity; so long distant dispersal is unlikely. This species is an annual, and a seed banker, so the populations do fluctuate over time based on environmental conditions.

Where is Heartleaf Leafcup (Polymnia cossatotensis) located in the wild?

Habitat:

Not Available

Distribution:

Not Available

States & Provinces:

Heartleaf Leafcup can be found in Arkansas

Which CPC Partners conserve Heartleaf Leafcup (Polymnia cossatotensis)?

Missouri Botanical Garden

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

Nature Serve Biotics

05/02/2017

This species was discovered in 1988 in the Ouachita Mountains, Arkansas. All four known populations are within the Ouachita National Forest and occur on mountain tops. Two of the populations are quite small, and two are large. The larger populations seem to have remained stable while the smaller populations have declined during periods of drought. This species is an annual, and a seed banker, so the populations do fluctuate over time based on environmental conditions.

The greatest threat to this species is climate change. Since the species occurs on the top of mountains if periods of warmer weather were to occur, this species couldn't migrate to cooler temperatures given that it's already at the top.

Quinn Long

01/01/2010

The greatest threat to this species is climate change. Since the species occurs on the top of mountains if periods of warmer weather were to occur, this species couldn't migrate to cooler temperatures.

Quinn Long

01/01/2010

Not Available

Quinn Long

01/01/2010

Not Available

Quinn Long

01/01/2010

Not Available

Quinn Long

01/01/2010

Not Available

Quinn Long

01/01/2010

Not Available