Welcome, 

Wood poppy

SCIENTIFIC NAME

Stylophorum diphyllum

OTHER COMMON NAMES

Celandine poppy, yellow poppy

DESCRIPTION

The wood poppy stands up to 40 centimetres tall. The leaves are mainly basal and up to 15 cm long and 6 cm across with a paler underneath with five to seven deeply divided, irregular lobed or toothed segments. The flower is deep yellow with four petals each 2 to 5 cm long; occur in clusters of up to four, blooming in May and early June. The fruit is a greyish hairy seed pod capsule divided into three or four longitudinal segments. All parts have a bitter yellow sap.

SIMILAR SPECIES

Pale poppy (Papaver alboroseum), Arctic poppy (P. radicatum)

RANGE

In Canada, restricted to three small, fragmented sites near London in southwestern Ontario.

HABITAT

Carolinian forest

BEHAVIOUR

The wood poppy is propogated by ants.

PRIMARY ECOSYSTEM ROLES

The wood poppy feeds bees and other pollinators, mice (seeds), whitetailed deer and other browsing mammals.

THREATS AND/OR WHAT YOU CAN DO

Threats to the Wood Poppy include invasive plants and trampling during recreational activities. If you see it consider yourself privileged to catch a glimpse of this imperilled species.

NOTES

This plant is listed as endangered by COSEWIC in 2000; plant and habitat protected under Ontario’s Endangered Species Act. Relatives of the wood poppy include the pale poppy (Papaver alboroseum), and the Arctic poppy (P. radicatum).