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Connecticut Plants
Blunt-lobed Woodsia (Blunt Cliff-fern)
Woodsia obtusa (Spreng.) Torr.
  • Family: cliff fern (Woodsiaceae)
  • Habitat: shaded or partly shaded cliffs and rocky slopes, especially in limy or neutral soil
  • Height: 8-16 inches
  • Location of spores: underside of fronds
  • Petiole (leaf stalk): yellowish with sparse hairs when young, brittle
  • Growth pattern: asymmetric clump
  • Persistence: deciduous
  • Origin: native
Woodsia obtusa (Spreng.) Torr.
Woodsia obtusa (Spreng.) Torr.

A frond of blunt-lobed woodsia. Note the blunt tips of the leaflets and the wide spacing between lower leaflets.

Woodsia obtusa (Spreng.) Torr.

Underside of a frond, showing the sori (spore-bearing structures).

Woodsia obtusa (Spreng.) Torr.

Close-up of the sori. They are initially covered by a disk of thin tissue, which tears open, leaving the papery remnants visible here.