Overview

Distribution

National Distribution

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

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Ecology

Habitat

Comments: Roadside ditches, marshes, hydric forest transitional zone between coastal prairie and mesic hardwood/pine flatwoods. A few populations are known to occur in natural communities such as open, moist prairies, thickets, and open areas along drainages and at the edges of mixed hardwood/pine flatwoods. Also grows in disturbed areas that simulate natural habitat, such as roadside ditches, along drainage canals, and in pipeline, powerline, and railroad rights-of-way.

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Population Biology

Number of Occurrences

Note: For many non-migratory species, occurrences are roughly equivalent to populations.

Estimated Number of Occurrences: 21 - 80

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Conservation

Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: N2 - Imperiled

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NatureServe Conservation Status

Rounded Global Status Rank: G2 - Imperiled

Reasons: Restricted to the coastal prairie/pine flatwoods region of southwest Louisiana and southeastern Texas. The natural habitat has been altered by agricultural and silvicultural practices but populations appear to thrive in disturbed rights-of-way sites.

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Threats

Degree of Threat: Medium

Comments: Most population are on roads, rights-of-way. Threatened by roadside development but only if severe. Chinese tallow tree encroachment is a threat.

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Disclaimer

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