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Overview

Distribution

Pteris cretica L.:
Argentina (South America)
Brazil (South America)
Bhutan (Asia)
Cambodia (Asia)
Costa Rica (Mesoamerica)
Guatemala (Mesoamerica)
El Salvador (Mesoamerica)
Japan (Asia)
India (Asia)
Kriti (Europe)
Honduras (Mesoamerica)
United States (North America)
Caribbean (Caribbean)
Mexico (Mesoamerica)
Peru (South America)
China (Asia)
Nepal (Asia)
Sri Lanka (Asia)
Philippines (Asia)
Vietnam (Asia)
Laos (Asia)
Nicaragua (Mesoamerica)
Panama (Mesoamerica)
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Pycnodoria cretica (L.) Small:
United States (North America)
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Pteris triphylla M. Martens & Galeotti:
Mexico (Mesoamerica)
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National Distribution

United States

Origin: Exotic

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Global Range: Indigenous to Hawaii, but first described from Crete (Valier 1995).

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Physical Description

Morphology

Comments

Pteris cretica is almost pantropical in distribution (C. V. Morton 1957). Because this species is so commonly and widely cultivated and appears to escape easily in warmer regions, its native range is uncertain. 

 Young leaves of young plants of Pteris multifida may key to P . cretica because only the terminal pinnae may be decurrent on the rachis as in P . cretica . Juveniles of P . multifida can be separated by proximal pinnae with long-attenuate apices and thinner-textured leaves than P . cretica . Juveniles of P . cretica have proximal pinnae with acute to blunt or nearly rounded apices and thicker-textured leaves.

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Description

Stems slender, creeping, sparingly scaly; scales dark brown to chestnut brown. Leaves clustered to closely spaced, to 1 m. Petiole straw-colored to light brown distally, darker proximally, 10--50 cm, base sparsely scaly. Blade irregularly ovate, primarily and irregularly pedately divided, 10--30 × 6--25 cm; rachis not winged; only terminal pinna decurrent on rachis. Pinnae 1--3 pairs, well separated, blade often 5-parted with terminal pinna and 2 lateral pairs of pinnae remaining green through winter, not articulate; sterile pinnae to 25 × 0.8--1.5 cm, serrulate; fertile pinnae narrower than sterile pinnae, to ca. 11 mm wide, spiny-serrate; base acute acroscopically and decurrent (sometimes narrowly and barely so) basiscopically, glabrous; proximal pinnae with 1 (rarely 2) basiscopic lobes. Veins free, simple or forked. Sori narrow, blade tissue exposed abaxially.
  • Flora of North America @ eFloras.org
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Diagnostic Description

Synonym

Pycnodoria cretica (Linnaeus) Small
  • Flora of North America @ eFloras.org
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Ecology

Habitat

Comments: Terrestrial, in dry or wet forests up to 915m (Valier 1995).

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Pteris cretica

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 3
Species: 13
Species With Barcodes: 1

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Conservation

Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: NNA - Not Applicable

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NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

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