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Northern Prairie Wildlife Research Center

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Aquatic and Wetland Vascular Plants of the Northern Great Plains

4. Polypodiaceae, the Polypody Family

3. Dryopteris Adans. -- Shield fern

1. Dryopteris carthusiana (Vill.) H. P. Fuchs -- Spinulose woodfern


Fronds alike, clustered, to 10 dm tall, the blades bipinnate-pinnatifid to nearly tripinnate, lanceolate, 2-6 dm long, 6-30 cm wide, acuminate, slightly narrowed at the base; pinnae usually numbering 10-15 pairs, ascending to spreading, alternate to subopposite, lanceolate to linear-lanceolate; pinnules toothed to deeply pinnately lobed, mostly 5-40 mm long, 3-10 mm wide, the teeth or lobes spinulose-tipped. Jun--Sep. Wet alluvial woods or swamps; uncommon; e ND, n and se NE; (Labr. to Alta. s to VA, MO, NE and ID). D. austriaca (Jacq.) Woynar var. spinulosa (Mull.) Fiori; D. spinulosa (Mull.) Watt.
GIF- Distribution Map

Map key


Previous Species -- Athyrium filix-femina (L.) Roth -- Lady fern
Return to Family -- Polypodiaceae - The Polypody Family
Next Species -- Dryopteris cristata (L.) A. Gray -- Crested fern

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