Osmunda regalis - (image 1 of 4)
Taxonomy
Family: Osmundaceae
Habitat
Moist, acid places. Can be abundant in swampy woods.
Associates
Distribution
Circumboreal. In America from Newfoundland to Saskatchewan, south to FL, TX, and into the tropics.
Morphology
Perennial to nearly 2 m high. Leaves bipinnate; petioles glabrous; pinnae 5-7 pairs, subopposite; sterile pinnules alternate, serrulate, 7-10 to a side, sessile; fertile part of blade terminal, greenish turning brown.
Notes
Spores late May to July.
Wetland indicator: Obligate
American plants are var. spectabilis (Willd.) A. Gray.
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
Swink, F. and G. Wilhelm. 1994. Plants of the Chicago Region.
Indiana Academy of Science. The Morton Arboretum. Lisle, Illinois.
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Michael Hough © 2005 |