Robert H. Mohlenbrock. USDA SCS. 1991.
Southern wetland flora: Field office guide to plant species
. South National Technical Center, Fort Worth. Provided by USDA NRCS Wetland Science Institute (WSI).
Linnaeus, Sp. Pl. 2: 1066. 1753.
Cinnamon fern, osmonde cannelle
Leaves pinnate-pinnatifid; petioles slightly shorter than blades, not winged, with light brown hairs when young, glabrate with age. Sterile leaves ovate to lanceolate, ca. 0.3--1.5 m; pinnae broadly oblong with persistent tuft of hairs on abaxial surface at base; ultimate segments with base obtuse, margins entire, apex usually mucronate. Fertile leaves with no expanded pinnae, green, becoming brownish, shorter and narrower than sterile leaves, withering after sporulation. Sporangia brown. 2 n =44.
Sporulation spring--early summer (late summer, early winter in Florida). Moist areas, acidic soils, frequently in vernal seeps; 0--2300 m; St. Pierre and Miquelon; N.B., Nfld., N.S., Ont., P.E.I., Que.; Ala., Ark., Conn., Del., Fla., Ga., Ill., Ind., Iowa, Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., N.H., N.J., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., Tenn., Tex., Vt., Va., W.Va., Wis.; Mexico; West Indies; Central America; South America; Asia.
Many forms of Osmunda cinnamomea have been described from within the flora area. It is widely cultivated as an ornamental.
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