Licorice fern

Description:

The reddish, scaly rhizome of this evergreen fern creeps along the tree trunk or rocks and anchors itself by small roots. It is often hidden by moss. The fronds are triangular and as long as 50 cm, usually smaller. The leaves are only once pinnately divided, each leaflet with pointed tips and finely scalloped or toothed margins, the stipe a naked stalk. The plants remain green and luxuriant during droughts, unlike other polypodys that dry and curl at those times, rehydrating after rains. The conspicuous round brownish dots distributed on either side of the main vein under each leaflet are the sori (singular sorus). The spores in these reproductive structures are spread by the wind and probably by rain as well. Sporulation occurs from late fall to spring. -Slater museum of natural history

Habitat:

An evergreen fern native to western North America, primarily in a narrow strip in southern Alaska, southwestern Yukon Territory, western British Columbia, Washington, Oregon, and California, though two highly disjunct populations are known from Idaho and Arizona. It thrives in a humid climate, prevailing in areas with cool and moist summers and warm and wet winters. P. glycyrrhiza can often be found growing on the trunks and branches of deciduous trees, particularly bigleaf maple, but is also often found on rocks, logs, and wet, mossy humus. Habitat elevation is lowlands below 600 meters.-Wikipedia