Mountain Fern, Rocky Mountain Cliff Fern, Rocky Mountain Woodsia
Woodsia scopulina ssp. scopulina
The photo above shows a cluster of fronds of
Rocky Mt. Woodsia growing from loose rocks on the Aiken Lava Flow at the Snipes
Mt. Trailhead on the southern slopes of Mt. Adams........May 28, 2005.
The fronds are twice-tapered, meaning they are widest at central frond, tapering
to both ends of the frond.
The photograph above shows a close-up of the
lower surface of one leaflet of Rocky Mt. woodsia. Note the minute glands and
sparse long hairs which are glandless. Photographed on the Aiken Lava Flow at
the Snipes Mt. Trailhead.........October 14, 2005.
The photo above shows a close-up of the upper
surface of one leaflet of Rocky Mt. woodsia which is largely glabrous. Photographed
on the Aiken Lava Flow.........October 14, 2005.
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Rocky Mountain cliff fern observed on the lava flow along the north edge of TakhTakh Meadows, Gifford Pinchot National Forest.....August 6, 2022.
Aiken Lava Flow at the Snipes Mt. Trailhead
on the southern slopes of Mt. Adams.........October 14, 2005.
Paul Slichter