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Above: Many Stylophorum diphyllum bloomed. Photo from: https://thumbs.dreamstime.com/b/celandine-poppy-stylophorum-diphyllum-close-up-flowering-spring-connecticut-317762498.jpg
Above: Many Stylophorum diphyllum bloomed. Photo from: https://thumbs.dreamstime.com/b/celandine-poppy-stylophorum-diphyllum-close-up-flowering-spring-connecticut-317762498.jpg
Left: Stylophorum diphyllum in the ASMSA garden.
Left: Stylophorum diphyllum in the ASMSA garden.
Plant Characteristics
Plant Characteristics
Plant Preference/Growing Conditions:
The Celandine Poppy prefers moist soil and partial shade but can tolerate wet soil and heavy shade. It will go dormant if the soil dries out.
Growth Habit/Description:
Plants grow from a woody caudex and thick, rhizomatous roots. Basal leaves are up to 6" long and 2 1/2" across with long and hair petioles. The leaves are double-pinnate with rounded lobes-each leaf has 2-3 pairs of deep primary lobes and each of those has shallow secondary lobes. The flowers are produced in large numbers during its blooming season. The blossoms are borne in small clusters on the ends of 12-18" leafless stems. Pollinated flowers will for a pendant, dehiscent fruit about an inch long.
Bloom Season:
The bright yellow to yellow-orange flowers are produced in large numbers during early spring. If the proper conditions are present, they can continue to intermittently bloom throughout the summer.
Fall and/or Winter Interest?
Yes. It can bloom again in the late fall if conditions are right. Usually goes dormant in the winter.
Distribution
Distribution
Habitat: Native to moist woodlands of eastern North America, from zone 4 to 9. It is found in low-elevation deciduous forests from Canada all the way down to Alabama and Georgia. It is typically found in open woods at the base of bluffs, along streams, and in ravine bottoms with rich soils.
Native to Arkansas? Yes
Native to Garland County? Yes
Endemic to Arkansas? No
Ecological Value
Ecological Value
Host Plant for Caterpillars?
Unknown. Little is known about its larval associations.
Other Known Ecological Value?
Yes. Flowers attract some metallic wood-boring beetles and various bees and flies. Ants spread the seeds; mice eat the seeds; the toxic foliage is avoided by mammalian herbivores.
Other Interesting Facts
Other Interesting Facts
Origin of Name: Its common name is derived from a closely related European plant that is very similar to it.
Related Plant Species: The similar Celandine, Chelidonium majus, is a somewhat weedy European biennial that has smaller flowers that bloom in summer, and hairless, erect seed capsules.
Use For Food/Medicine:
Was used by Native Americans as a dye. It has been used in traditional remedies to treat various ailments, although it is important to note that some components can be toxic if misused.
References
References
Wisconsin Horticulture. University of Wisconsin - Madison. Celandine Poppy, Stylophorum Diphyllum. [Cited 2025, Sept. 8]. Available from: hort.extension.wisc.edu/articles/celandine-poppy-stylophorum-diphyllum/
The Plant Native. Native Plant Profile. Celandine Poppy. c. 2025. [Cited 2025, Sept. 8]. Available from: theplantnative.com/plant/celandine-poppy/
Wild Ones. (Gibson Woods Nature Preserve, IN). HOST PLANTS For Butterflies & Moths (Lepidoptera), and their Characteristics. [Cited 2025, Sept. 8]. Available from: gibsonwoods.wildones.org/wp-content/images/sites/95/2023/02/Host-Plants-for-Butterflies-Moths.pdf
Botanical Realm. c. 2024. Buttercups, Poppies, and Allies (Ranunculales). Celandine Poppy (Stylophorum diphyllum). [Cited 2025, Sept. 8]. Available from: www.botanicalrealm.com/plant-identification/celandine-poppy-stylophorum-diphyllum/
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