Dryopteris spinulosa

Read about Dryopteris spinulosa in the Standard Cyclopedia of Horticulture
Dryopteris spinulosa, Kuntze (Aspidium spinulosum, Swartz). Lvs. ovate-lanceolate, with a few pale, deciduous scales at the base: indusia smooth, without marginal glands. Var. intermedia, Underwood. Lvs. evergreen, the scales more persistent, with brown centers, and the margins of the indusia with stalked glands. One of our commonest wood ferns in the northern states. Extensively gathered for use with cut-fls. Probably a distinct species. Var. dilatata, Underwood, has similar scales to the last and tripinnate lvs. In woods at altitudes of 1,500 ft. upward, from Canada to Ore.; also in Eu. Probably a distinct species. The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.