Asplenium viride — green spleenwort
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New England distribution
Adapted from BONAP data
Non-native: introduced (intentionally or unintentionally); has become naturalized.
County documented: documented to exist in the county by evidence (herbarium specimen, photograph). Also covers those considered historical (not seen in 20 years).
State documented: documented to exist in the state, but not documented to a county within the state. Also covers those considered historical (not seen in 20 years).
Note: when native and non-native populations both exist in a county, only native status is shown on the map.
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Green spleenwort is a rare species of calcareous and serpentine rocks and ledges in Maine and Vermont. It has a green rachis (midrib), which distinguishes from the more common and closely-related maidenhair spleenwort (Asplenium trichomanes), which has a red-brown to nearly black rachis.
Cliffs, balds, or ledges, ridges or ledges
- New England state
- Features of leaves
- there are no special features on the leaves
- New England state
- Specific habitat
- cliffs, balds, or ledges
- ridges or ledges
New England distribution and conservation status
- New Hampshire
- Rhode Island
Exact status definitions can vary from state to state. For details, please check with your state.
- extremely rare (S-rank: S1), endangered (code: E)
- extremely rare (S-rank: S1), threatened (code: T)
Native to North America?
Sometimes confused with
- Asplenium trichomanes:
- rachis red-brown to nearly black and middle leaflets 2.5-4 mm wide (vs. A. viride, with the rachis green and middle leaflets 4-5 mm wide).
- Asplenium trichomanes-ramosum L.
From the dichotomous key of Flora Novae Angliae
6. Asplenium viride Huds. NC
green spleenwort. Asplenium trichomanes- ramosum L. • ME, VT. On calcareous and serpentine rocks and ledges.