Epithet means "wavy foliage."
Evergreen, 1V2 to 2V2 ft. (45 to 75 cm). Zones 6 (with protection) to 9.
description: The rhizome is short-creeping and over a long period of time will produce a number of modest crowns. The green stipe with an occasional tan scale is one-third to one-half the length of the frond. The beauty of this species is in the triangular blades with their sparkling spun-glass-green tripinnate to quadripinnate crispy foliage. There are about a dozen pairs of pinnae with the lower ones elongate lopsided triangles. in cultivation the spores are produced only reluctantly on sori that are medial and covered with a kidney-shaped indusium.
range and habitat: This species is endemic to the Azores and has demonstrated remarkable hardiness in the temperate Pacific Northwest through 10°F (-12°C) winters and rare (and unwelcome) 90°F (32°C) droughty summers.
culture and comments: With bright green fronds born on a procumbent plane, this is a cheerful accent for the mixed
Late afternoon light highlights the dense foliage on Dryopteris crassirhizoma.
shady fern and floral bed. It is similar in dissection to Dryopteris dilatata 'Crispa Whiteside' but without the attendant attraction to leaf hoppers. Easy of cultivation, give it the typical fern blend of light shade and humusy soil.
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