Compilation
Chelidonium diphyllum

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Name

Identification
Stylophorum petiolatum Nutt. [family PAPAVERACEAE ] (stored under name); Verified by Not on Sheet, Stylophorum petiolatum Nutt. [family PAPAVERACEAE ] Verified by Stuckey, R.L., Chelidonium diphyllum Michx. [family PAPAVERACEAE ] Verified by Not on Sheet,
Related name
  • Stylophorum diphyllum
  • Chelidonium diphyllum
  • Stylophorum petiolatum
Common name
  • wood-poppy, Flora of North America Vol. 3
  • yellow-poppy, Flora of North America Vol. 3
  • Celandine-poppy, Flora of North America Vol. 3
  • mock poppy, Flora of North America Vol. 3

Flora

Entry for Stylophorum diphyllum (Michaux) Nuttall [family PAPAVERACEAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 3,
Names
Stylophorum diphyllum (Michaux) Nuttall [family PAPAVERACEAE], Gen. N. Amer. Pl., 2: 7. 1818
Chelidonium diphyllum Michaux [family PAPAVERACEAE], Fl. Bor.-Amer., 1: 309. 1803
Stylophorum ohiense Sprengel [family PAPAVERACEAE]
Information
Plants to 5 dm, downy. Stems simple or branching. Leaves to 5 dm; petiole to 2 dm; blade pale abaxially, deeply 5-7-lobed; margins irregularly dentate or crenate. Flowers: pedicels 25-80 mm; sepals ca. 15 mm; petals yellow, obovate, 2-3 cm wide; style 3-6 mm. Capsules ellipsoid, 20-35 mm, pubescent. Seeds pale brown, reticulate-pitted. 2n = 20 (cult.).
Phenology
Flowering spring
Altitude range
100-600 m
Distribution
USA Ala.USA Ark.USA Ill.USA Ind.USA Ky.USA Mich.USA Mo.USA OhioUSA Tenn.USA Va.USA W.Va.Canada Ont.
Discussion
Vegetatively, this native species closely resembles the more frequent and widespread Chelidonium majus, introduced from Eurasia. Various authors have reported Stylophorum diphyllum from western Pennsylvania, but W. E. Buker and S. A. Thompson (1986) could not confirm its past or current native presence there.

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