Jack-in-the-Pulpit

Arisaema triphyllum

Summary 5

Arisaema triphyllum, commonly called jack-in-the-pulpit, is an unusual forest wildflower native to much of eastern North America. Each leaf emerges from the ground singly, and each leaf consists of three leaflets. The flower is a spadix hidden under a hood. In its first years, the flower is male, then switches to female as it grows larger and gains more energy. It may switch back to male when under stress.

Similar Species 5

Jack-in-the-pulpit is easily mistaken for a trillium when not in flower. Trilliums also have three leaflets, but their leaflets are spread out more evenly. Jack-in-the-pulpit has a roughly 90° angle between the central leaflet and the lateral leaflets.

Sources and Credits

  1. (c) liz west, some rights reserved (CC BY), https://www.flickr.com/photos/calliope/14159167268/
  2. (c) Superior National Forest, some rights reserved (CC BY), https://www.flickr.com/photos/superiornationalforest/5097207875/
  3. (c) dogtooth77, some rights reserved (CC BY-NC-SA), https://www.flickr.com/photos/53817483@N00/15161896306/
  4. (c) lahvak, some rights reserved (CC BY-NC-SA), https://www.flickr.com/photos/lahvak/4327167608/
  5. (c) The Preserve at Shaker Village, some rights reserved (CC BY-SA)

More Info

iNat Map

Status native
Habitat Forest
Color brown, green, maroon
Blooms in spring, summer