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Asplenium
Family: Aspleniaceae
Asplenium image
Max Licher
  • Gleason & Cronquist
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Vascular plants of NE US and adjacent Canada
Petiole mostly wiry, green to black, sparsely scaly, otherwise glabrous, with 2 bundles below, these united above into a single bundle mostly X- shaped in section; lvs clustered, the blade simple and entire to thrice pinnate; veins free except in A. rhizophyllum; sori on the lower lf-surface, ±elongate, the indusia attached at one side, all facing distally, thin and hyaline, glabrous, entire; mostly ±evergreen ferns with short-creeping to suberect rhizomes and membranous to coriaceous lvs. 600+, mostly warm reg. (Camptosorus) Our spp. produce ±sterile hybrids and also enter into a large polyploid complex. The following names are believed to apply to sterile hybrids, as indicated:

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
Vascular plants of NE US and adjacent Canada
Petiole coarse, scaly, with 2 curved bundles at the base; lvs entire; veins pinnate, free, twice forked, ending short of the margin in linear hydathodes; sori linear, paired, one on the anterior branch of a vein, the other on the posterior branch of the next higher vein, the membranous, entire indusia facing each other and overlapping when young; evergreen terrestrial ferns with erect scaly rhizomes and numerous firm, glossy green, elongate, simple lvs. 8, widespread.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
Species within inventory project: North American Species Lists
Asplenium bradleyi
Image of Asplenium bradleyi
Asplenium montanum
Image of Asplenium montanum
Asplenium pinnatifidum
Image of Asplenium pinnatifidum
Asplenium platyneuron
Image of Asplenium platyneuron
Asplenium resiliens
Image of Asplenium resiliens
Asplenium rhizophyllum
Image of Asplenium rhizophyllum
Asplenium ruta-muraria
Image of Asplenium ruta-muraria
Asplenium septentrionale
Image of Asplenium septentrionale
Asplenium serratum
Image of Asplenium serratum
Asplenium trichomanes
Image of Asplenium trichomanes
Asplenium tutwilerae
Images
not available
Asplenium vespertinum
Image of Asplenium vespertinum
Asplenium viride
Image of Asplenium viride

The PCC, and this data portal, were made possible by funding from the National Science Foundation’s Advancing Digitization of Biological Collections (ADBC) program, grant numbers 1802504, 1802352, 1802134, 1802033, 1802270, 1802255, 1802239, 1802446, 1802305.
The pteridoportal taxonomic thesaurus is based on the Checklist of Ferns and Lycophytes of the World, generously provided by Michael Hassler.