Authentic Wisconsin.  Jack-in-the-pulpit - Arisaema triphyllum


Jack-in-the-pulpit in the Oak Savanna on May 3, 2020 in Madison, Wisconsin.

Above: Jack-in-the-pulpit in the Oak Savanna on May 3, 2020.


Jack-in-the-pulpit - Arisaema triphyllum (Spring Ephemeral)

The "Jack", or spadix sits in a tubular base with a hood (the "pulpit", or spathe). The spadix is light green to reddish green. The spathe is light green to purplish green and often dotted with white or purplish stripes.

A native perennial, the plant flowers in May and June. However, not all the flowers are "Jacks." Initially Jack-in-the-pulpits produce only male flowers but, in later years, Jack-in-the-pulpits may have male flowers on top and female flowers ("Jills") on the bottom. This all depends on how much energy has been stored in the plant's corm (a bulbous underground stem that stores the plant's carbohydrates).

Other names: Indian turnip

ack-in-the-pulpit in the Oak Savanna on May 3, 2020.


Above: Jack-in-the-pulpit in the Oak Savanna on May 3, 2020.


ack-in-the-pulpit in the Oak Savanna on May 7, 2020.


Above: Jack-in-the-pulpit in the Oak Savanna on May 7, 2020.


ack-in-the-pulpit in the Oak Savanna on May 8, 2020.


Above: Jack-in-the-pulpit in the Oak Savanna on May 8, 2020.



Jack In The Pulpit
(Arisaema Triphyllum)
by Scottish author, Elizabeth Gordon

Each Sunday, on a mossy mound,

The Flower Children gather round

Jack-In-The-Pulpit, while he teaches

Each one, to practice what he preaches.



For more information on Jack-in-the-pulpit, visit Wikipedia.

Or, visit the UW-Madison Wisconsin State Herbarium website page about Jack-in-the-pulpit.


Jack-in-the-Pulpit in the Oak Savanna on May 9, 2020.
Jack-in-the-Pulpit in the Oak Savanna on May 9, 2020.
Jack-in-the-Pulpit in the Oak Savanna on May 9, 2020.
Jack-in-the-Pulpit in woods between the Oak Savanna and Marion Dunn on May 9, 2020.
Jack-in-the-Pulpit in woods between the Oak Savanna and Marion Dunn on May 9, 2020.
Jack-in-the-Pulpit in woods between the Oak Savanna and Marion Dunn on May 9, 2020.
Jack-in-the-Pulpit in woods between the Oak Savanna and Marion Dunn on May 9, 2020.
Jack-in-the-Pulpit in woods between the Oak Savanna and Marion Dunn on May 9, 2020.
Jack-in-the-Pulpit in woods between the Oak Savanna and Marion Dunn on May 9, 2020.
Jack-in-the-Pulpit in woods between the Oak Savanna and Marion Dunn on May 9, 2020.
Jack-in-the-Pulpit in woods between the Oak Savanna and Marion Dunn on May 9, 2020.
Jack-in-the-Pulpit in woods between the Oak Savanna and Marion Dunn on May 9, 2020.
Jack-in-the-Pulpit emerging in woods between the Oak Savanna and Marion Dunn on April 23, 2021.
Jack-in-the-Pulpit in Oak Savanna by Council Ring on May 2, 2021.
Jack-in-the-Pulpit in woods between the Oak Savanna and Marion Dunn on May 8, 2021.
Jack-in-the-Pulpit emerging in woods between the Oak Savanna and Marion Dunn on May 13, 2021.
Jack-in-the-Pulpit

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Jack-in-the-pulpit
Arisaema triphyllum


Jack-in-the-pulpit in the Oak Savanna on May 3, 2020.

Jack-in-the-pulpit in the Oak Savanna on May 3, 2020.

Jack-in-the-pulpit in the Oak Savanna on May 3, 2020.

Jack-in-the-pulpit in the Oak Savanna on May 3, 2020.

Jack-in-the-pulpit in the Oak Savanna on May 3, 2020.

Jack-in-the-pulpit in the Oak Savanna on May 3, 2020.


Above: Jack-in-the-pulpit in the Oak Savanna (5/03/20)


Jack-in-the-pulpit in Oak Savanna on May 4, 2020

Jack-in-the-pulpit in Oak Savanna on May 4, 2020


Above: Jack-in-the-pulpit in the Oak Savanna (5/04/20)


Jack-in-the-pulpit in Oak Savanna on May 6, 2020

Jack-in-the-pulpit in Oak Savanna on May 6, 2020

Jack-in-the-pulpit in Oak Savanna on May 6, 2020

Jack-in-the-pulpit in Oak Savanna on May 6, 2020

Jack-in-the-pulpit in Oak Savanna on May 6, 2020


Above: Jack-in-the-pulpit in the Oak Savanna (5/06/20)


Jack-in-the-pulpit with no "Jack" by Duck Pond parking lot on May 13, 2020

Jack-in-the-pulpit with no "Jack" by Duck Pond parking lot on May 13, 2020


Above: Jack-in-the-pulpit with no "Jack" by Duck Pond parking lot (5/13/20)


1917 Jack-in-the-Pulpit illustration by Mary Vaux Walcott.

Above: 1917 Jack-in-the-Pulpit illustration by Mary Vaux Walcott. Smithsonian American Art Museum, Gift of the artist.


Jack-in-the-Pulpit illustration by Alice Lounsberry circa 1899.

Above: Jack-in-the-Pulpit illustration by Alice Lounsberry circa 1899.


1969 Jack-in-the-Pulpit  illustration.


Above: 1969 Jack-in-the-Pulpit illustration USDA FS.



Jack-in-the-Pulpit Wild Flower Children by Elizabeth Gordon with illustration by Janet Laura Scott.

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