Species: Asplenium trichomanes
Encyclopedia of Puget Sound
Maidenhair Spleenwort is a perennial with short rhizomes and glabrous, evergreen fronds clustered from the base of the plant. Each frond is 7-35 cm long, and is pinnately divided into numerous pinnae that are arranged alternately on the shiny, reddish-brown central axis (rachis) of the frond. The naked petioles and central axes tend to persist after the pinnae have fallen; each pinna is 5 mm wide and entire-margined below, but shallowly lobed toward the tip. Spores are borne in 1-4 clusters arranged along the veins on the undersides of the pinnae; the spores are partially enfolded by a thin, white tissue, the indusium.
Source: Encyclopedia of Life
Classification
Filicopsida
Filicales
Aspleniaceae
Asplenium
NatureServe
Classification
Ecology and Life History
Maidenhair Spleenwort is a perennial with short rhizomes and glabrous, evergreen fronds clustered from the base of the plant. Each frond is 7-35 cm long, and is pinnately divided into numerous pinnae that are arranged alternately on the shiny, reddish-brown central axis (rachis) of the frond. The naked petioles and central axes tend to persist after the pinnae have fallen; each pinna is 5 mm wide and entire-margined below, but shallowly lobed toward the tip. Spores are borne in 1-4 clusters arranged along the veins on the undersides of the pinnae; the spores are partially enfolded by a thin, white tissue, the indusium.
Source: Encyclopedia of Life