19. JACK-IN-THE-PULPIT, INDIAN TURNIP
Arisaema triphyllum
(aroid family)
TOXICITY RATING: Low.
ANIMALS AFFECTED: All animals may be affected.
DANGEROUS PARTS OF PLANT: Bulbs, stems, possibly leaves.
CLASS OF SIGNS: Oral and gastric irritation, mouth and throat
swelling on rare occasions may be severe enough to affect breathing.
PLANT DESCRIPTION: These herbaceous perennials (fig. 19) pop up in spring in Indiana woodlands. They grow 1 to 2 feet tall from a tuberous root. The large leaves are three-parted, smooth-margined, and net-veined. Each plant produces one bloom beneath the leaves on a short stalk. The "jack" is a fleshy green spike ("spadix") bearing a number of inconspicuous male and female flowers. The most noticeable
part of the bloom is the "pulpit", a modified leaf ("spathe")
that wraps around and hides the spadix. It may be all green or
striped with red or reddish-violet. In late summer the spathe
falls away, revealing a cluster of bright red berries.
SIGNS and FIRST AID: See the section for the Aroid discussion.
Rarely is enough of this plant consumed to cause a problem, but
the potential exists, especially in spring when other forages
are not readily available and if the livestock have access to
a wooded area. Signs are self-limiting, and a veterinarian only
needs to be contacted if signs do not resolve or if breathing
is affected.
PREVENTION: Jack-in-the-Pulpit grows in wooded, shaded areas
in the spring, so limit animal access to these areas when plants
begin to emerge.