Overview

Distribution

National Distribution

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Global Range: Appalachian mountain range from New York to Georgia, mostly in the Piedmont province.

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D.C., Ga., Md., N.J., N.Y., N.C., S.C., Va.
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Physical Description

Morphology

Description

Stems erect to ± sprawling, not viny, 2-7 dm,, sparsely to ± densely pilose. Leaves simple. Leaf blade narrowly to broadly ovate, unlobed or rarely few-lobed, 3-14 × (1.5-)2.5-8(-9.5) cm, ± leathery, reticulate adaxially; surfaces abaxially moderately silky-pilose with spreading hairs or rarely nearly glabrous, not glaucous. Inflorescences terminal, flowers solitary; bracts absent. Flowers narrowly urn-shaped; sepals pale yellow to pale purple, lanceolate, 1-3.5 cm, margins not expanded, thin, not crispate, tomentose, tip obtuse, spreading to recurved, abaxially silky-pubescent. Achenes: bodies pilose, hairs appressed-ascending; beak yellowish brown to reddish brown, 3-6 cm, plumose. 2 n = 16.
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Diagnostic Description

Synonym

Viorna ochroleuca (Aiton) Small
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Ecology

Habitat

Comments: Woods/thickets/rocky slopes/clearings w/ dry/gravelly soil. Found in Appal. Piedmont, sometimes Blue Ridge province.

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Dry to moist woods, thickets, roadsides, and other shady to open, ± disturbed sites, mostly on mafic substrates; 0-500m.
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Life History and Behavior

Cyclicity

Flowering/Fruiting

Flowering spring.
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Conservation

Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: G4 - Apparently Secure

Reasons: Fairly common in eastern North America from NY to GA. Many EOs in VA and SC.

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Threats

Comments: Highly threatened by succession, and to a lesser extent by forest management practices (Southern Appalachian Species Viability Project 2002).

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Notes

Comments

In New York, Clematis ochroleucra is known only from Staten Island and, formerly, from western Long Island (Brooklyn).
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