Overview

Distribution

National Distribution

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

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Fla.; s Mexico; West Indies in the Antilles; Central America; South America to n Argentina.
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Physical Description

Morphology

Description

Stems short-creeping, 4--10 mm diam. Leaves monomorphic, evergreen, ca. 65--200 cm or more. Petiole tan, (25--)40--120 cm × 4--10 mm, at base with scales absent or ephemeral. Blade 40--100 cm or more, gradually reduced distally with lanceolate apical pinna that is 1/4 to equaling longest lateral pinna; buds sometimes present at base of proximal pinna. Pinnae lanceolate, 15--25 pairs, (10--)15--25 × (1.5--)2.5--3.5(--4.5) cm, rounded to truncate at base, margin hooked-serrate; main lateral veins of fertile pinnae 3--5 per cm, with rows of 10--18 areoles between costa and margin, cross-veins somewhat curved. Indument abaxially of spreading, irregularly crimped hairs ca. 0.2--0.3 mm on costae and sometimes veins adaxially; blades glabrous adaxially. Sori oblong-arcuate, uniseriate between main lateral veins on cross-veins, often appearing confluent at maturity; indusia lacking; sporangia glabrous. 2 n = 72.
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Diagnostic Description

Synonym

Meniscium serratum Cavanilles, Descr. Pl., 548. 1802; Dryopteris serrata (Cavanilles) C. Christensen
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Ecology

Habitat

Comments: Fresh-water swamps, cypress sloughs, and boggy ponds.

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Cypress sloughs and swamps; 0--50m.
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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: 81 to >300

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Conservation

Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: N1 - Critically Imperiled

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NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

Reasons: Widespread (Florida, Greater Antilles except Hispaniola, Lesser Antilles, Trinidad, and America from Mexico to Bolivia and Brazil).

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Global Short Term Trend: Decline of 10-30%

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