This northern fern shows a preference for limestone-influenced areas and differs from its relatives in having fronds distributed along an extended rhizome. This is a close view of fronds from a plant on the east side of Glacier National Park.
This northern fern shows a preference for limestone-influenced areas and differs from its relatives in having fronds distributed along an extended rhizome. This is a higher-resolution display of part of the companion image IM09-3577.
Endemic to Hawaiian Islands and uncommon. Note young, unopened synangia. This plant was alongside the trail near Sadleria unisora and the elevation was around 1223m/4011ft.
Endemic to Hawaiian Islands and uncommon. Note serrate margins, winged costa, and synangia. This plant was on a slope below the trail near the junction with the Alakai Swamp trail at around 1204m/3950ft.