Overview

Distribution

National Distribution

Canada

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

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N.B., N.S., Ont., Que.; Conn., Del., Maine, Md., Mass., N.H., N.J., N.Y., Pa., R.I., Vt., Va., W.Va., Wis.
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Physical Description

Morphology

Description

Stems long-creeping, 1.5--3 mm diam. Leaves monomorphic, dying back in winter, often 1 cm or more apart, fertile leaves often somewhat longer than sterile leaves, 25--80 cm. Petiole straw-colored above base, 12--45 cm × 1--3 mm, at base sparsely set with tan, ovate, glabrous scales. Blade lanceolate, 14--35 cm, proximal pinnae largest, or lowest pair slightly smaller, blade tapered gradually to pinnatifid apex. Pinnae deeply pinnatifid to ca. 1 mm from costa, 3--10 × 1--2 cm; segments oblong, somewhat oblique, entire; proximal pair of veins from adjacent segments meeting margin above sinus. Indument abaxially of sparsely set hairs 0.2--0.4 mm primarily on costae, also of yellowish short-stalked glands less than 0.1 mm, blade tissue with numerous reddish to orangish, resinous, shiny, sessile, hemispheric glands; blades adaxially with scattered hairs on veins. Sori round, medial; indusia tan, often glandular; sporangia glabrous. 2 n = 128.
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Diagnostic Description

Synonym

Aspidium simulatum Davenport, Bot. Gaz. 19: 495. 1894; Parathelypteris simulata (Davenport) Holttum
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Ecology

Habitat

Terrestrial in acid soils of shaded swamps and bogs, frequently associated with sphagnum; 0--100m.
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Thelypteris simulata

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 5
Species With Barcodes: 1
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Conservation

Conservation Status

National NatureServe Conservation Status

Canada

Rounded National Status Rank: N4 - Apparently Secure

United States

Rounded National Status Rank: N4 - Apparently Secure

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NatureServe Conservation Status

Rounded Global Status Rank: G4 - Apparently Secure

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Threats

Comments: Highly threatened by land-use conversion, habitat fragmentation, sedimentation, and to a lesser degree by forest management practices (Southern Appalachian Species Viability Project 2002).

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