Onagraceae - evening-primrose family
[information to be added]

Mount Desert Island is home to 11 species in 4 genera. Click on a link below or scroll down for more information.
   Chamerion (1 species)
      Chamerion angustifolium - narrow-leaved fireweed (occasional [see note 1 at bottom of page])
   Circaea (1 species)
      Circaea alpina - small enchanter's-nightshade (occasional)
   Epilobium (5 species)
      Epilobium ciliatum - fringed willow-herb (occasional)
      Epilobium coloratum - eastern willow-herb (rare)
      Epilobium leptophyllum - bog willow-herb (uncommon)
      Epilobium palustre - marsh willow-herb (uncommon)
      Epilobium strictum - downy willow-herb (uncommon)
   Oenothera (4 species)
      Oenothera biennis - common evening-primrose (uncommon)
      Oenothera fruticosa - narrow-leaved evening-primrose (uncommon)
      Oenothera parviflora - small-flowered evening-primrose (occasional)
      Oenothera perennis - little evening-primrose (occasional)

Chamerion (fireweed)
[information to be added]

Chamerion angustifolium (narrow-leaved fireweed) - [information to be added]
      
(click on an image to enlarge)

Circaea (enchanter's-nightshade)
[information to be added]

Circaea alpina (small enchanter's-nightshade) - [information to be added]

Epilobium (willow-herb)
[information to be added]

Epilobium ciliatum (fringed willow-herb) - [information to be added]

Epilobium coloratum (eastern willow-herb) - [information to be added]

Epilobium leptophyllum (bog willow-herb) - [information to be added]

Epilobium palustre (marsh willow-herb) - [information to be added]

Epilobium strictum (downy willow-herb) - [information to be added]

Oenothera (evening-primrose)
[information to be added]

Oenothera biennis (common evening-primrose) - [information to be added]

Oenothera fruticosa (narrow-leaved evening-primrose) - [information to be added]

Oenothera parviflora (small-flowered evening-primrose) - [information to be added]

Oenothera perennis (little evening-primrose) - [information to be added]

Note:
   1. Frequency designations are from the paper “Vascular flora of the Acadia National Park region, Maine” by Craig W. Greene, Linda L. Gregory, Glen H. Mittelhauser, Sally C. Rooney, and Jill E. Weber, published in the spring 2005 issue (vol. 107, No. 930) of Rhodora: Journal of the New England Botanical Club.