Overview

Distribution

National Distribution

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

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Global Range: Stillingia sylvatica occurs from Colorado to Texas east to Virginia and south through Florida. Subspecies Stillingia sylvatica ssp. sylvatica is widewpread, and subspecies Stillingia sylvatic ssp. tenuis is endemic to southern Florida.

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Physical Description

Diagnostic Description

Stillingia sylvatica may be characterized by plants with several stems arising from the crown; seeds lacking a conspicuous hilum scar (Wunderlin, 1982).

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Ecology

Habitat

Comments: Found in dry forests and sandhills on the coastal plains of the eastern U.S (Weakley 2000 Draft). In Texas, this species grows in sandy prairies and open woods (Diggs et al. 1999) and in Colorado it occurs on sand dunes (Weber and Whitman 1996).

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Life History and Behavior

Life Cycle

Persistence: PERENNIAL

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Conservation

Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: N5 - Secure

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NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

Reasons: Stillingia sylvatica has a fairly large range from Colorado south to Texas and east to Virginia and Florida. This species is common in parts of its range such as the Carolinas and Florida. Subspecies Stillingia sylvatica ssp. sylvatica is widespread, and subspecies Stillingia sylvatic ssp. tenuis is endemic to southern Florida. Roots of this species are collected from the wild for medicinal use and are commercially available. Currently, use of this herb is relatively small, but demand is reportedly increasing and it has historically been widely popular.

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Threats

Comments: This species has historically been collected from the wild and used for medicinal purposes. Some experts in the medicinal plant industry have suggested that trade is medium to large and demand has increased over the past ten years (Robbins 1999). According to Michael McGuffin, president of the American Herbal Products Association, use of this herb is marginal (pers. comm., January 2001); however it is commercially available and information about efficacy and use is widely available. Sources of commercial products should be monitored to determine whether potential increased demand would affect wild populations.

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Relevance to Humans and Ecosystems

Benefits

Economic Uses

Uses: MEDICINE/DRUG

Production Methods: Wild-harvested

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