Parathelypteris simulata - (image 1 of 6)
Taxonomy
Family: Thelypteridaceae
Synonymous with Thelypteris simulata (Davenport) Nieuwl.
Habitat
Swamps and moist woods, in acid soil.
Associates
Distribution
Nova Scotia to VA and WV, disjunct in the driftless area of WI.
Morphology
Rhizomatous perennial; petioles of sterile leaf blades to 20 cm and of the fertile to 35 cm, mostly a little shorter than the blades; blades to 50 cm long and 15 cm wide; costae and veins only sparsely or scarcely hairy; veins simple, those of the sterile segments in 4-5 pairs, of the fertile ones in 6-7 pairs; indusia margined with minute glands.
Notes
Producing spores in August and September
Wetland indicator: FACW
Similar to marsh fern (Thelypteris palustris) which has forked veins and indusia ciliate or glabrous (lacking marginal glands).
References
Gleason, Henry A. and A. Cronquist. 1991. Manual of Vascular Plants of Northeastern United States and Adjacent Canada. Second Ed.
The New York Botanical Garden. Bronx, NY
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Michael Hough © 2018 |