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Botrychium tenebrosum — swamp moonwort

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Facts

Swamp moonwort is a rare inhabitant of swamps, streambanks and shaded forests. This species is closely related to least moonwort (Botrychium simplex), but is more likely to inhabit forested wetlands, while least moonwort is more often found in open fields, shores and banks.

Habitat

Forests, shores of rivers or lakes, swamps, wetland margins (edges of wetlands)

New England distribution

Adapted from BONAP data

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North America distribution

Adapted from BONAP data

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Characteristics

Habitat
  • terrestrial
  • wetlands
New England state
  • Connecticut
  • Maine
  • Massachusetts
  • New Hampshire
  • Vermont
Show all characteristics
  • Leaves

    Features of leaves
    there are no special features on the leaves
  • Place

    Habitat
    • terrestrial
    • wetlands
    New England state
    • Connecticut
    • Maine
    • Massachusetts
    • New Hampshire
    • Vermont
    Specific habitat
    • edges of wetlands
    • forests
    • shores of rivers or lakes
    • swamps

Wetland status

Not classified

In New England

Distribution

Connecticut
present
Maine
present
Massachusetts
present
New Hampshire
present
Rhode Island
absent
Vermont
present

Conservation status

Exact status definitions can vary from state to state. For details, please check with your state.

Massachusetts
extremely rare to rare (S-rank: S1S2), #NAME? (code: #NAME?)
Rhode Island
extremely rare (S-rank: S1), concern (uncertain) (code: C*)
Vermont
historical (S-rank: SH)

From Flora Novae Angliae dichotomous key

13.  Botrychium tenebrosum A.A. Eat. NC

swamp moonwort. Botrychium simplex E. Hitch. var. tenebrosum (A.A. Eat.) Clausen • CT, MA, ME, NH, VT. Swamps, streambanks, shaded forests.

Native to North America?

Yes

Sometimes confused with

Botrychium simplex

Synonyms

  • Botrychium simplex E. Hitch. var. tenebrosum (A.A. Eat.) Clausen

Genus

Botrychium