Papaver dubium


Sp. Pl. 2: 1196. 1753

Common names: Long-headed poppy
Selected by author to be illustratedWeedyIntroduced
Treatment appears in FNA Volume 3.
Click plate for higher resolution version.
Illustrator: John Myers
Plants to 7 dm, hirsute to hispid. Stems simple or branching. Leaves to 20 cm. Inflorescences: peduncle proximally spreading-hispid, distally appressed-hispid. Flowers: petals orange to red, rarely with dark basal spot, to 3 cm; anthers violet; stigmas 7-9, disc ± flat. Capsules sessile or substipitate, narrowly obovoid, usually distinctly ribbed, to 2 cm, 2 times or more longer than broad.

Phenology: Flowering spring–summer.
Habitat: Fields, glades, dunes, stream banks, marshy areas, railroads, roadsides, and other disturbed sites
Elevation: 0-900 m


V3 976-distribution-map.gif

Greenland, N.B., Ont., Que., Ark., Conn., Del., D.C., Ill., Kans., Md., Mass., Mo., N.J., N.Y., N.C., Ohio, Okla., Oreg., Pa., R.I., S.C., Va., W.Va., Europe, sw Asia.


In its native range, Papaver dubium is a tetraploid complex of five subspecies whose morphologies and distributions intersect to a considerable degree (J. W. Kadereit 1989, 1990). Probably several, if not all, of these entities have been introduced in North America, but it is fruitless to try to distinguish them here, where the species has arrived as a crop weed and the subspecies have no geographic integrity.

Papaver dubium sometimes seems to intergrade with P. rhoeas, at least in North America. The most readily evident character for distinguishing them reliably is the nature of the distal pubescence on the peduncles–whether spreading or appressed.



Lower Taxa

No lower taxa listed.

Facts about "Papaver dubium"
AuthorityLinnaeus +
Common nameLong-headed poppy +
DistributionGreenland +, N.B. +, Ont. +, Que. +, Ark. +, Conn. +, Del. +, D.C. +, Ill. +, Kans. +, Md. +, Mass. +, Mo. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Oreg. +, Pa. +, R.I. +, S.C. +, Va. +, W.Va. +, Europe + and sw Asia. +
Elevation0-900 m +
HabitatFields, glades, dunes, stream banks, marshy areas, railroads, roadsides, and other disturbed sites +
IllustratorJohn Myers +
Introducedtrue +
PhenologyFlowering spring–summer. +
Publication titleSp. Pl. +
Publication year1753 +
ReferenceNone +
Source xml grained fna xml/V3/V3 976.xml +
Special statusSelected by author to be illustrated +, Weedy + and Introduced +
Taxon familyPapaveraceae +
Taxon namePapaver dubium +
Taxon parentPapaver sect. Rhoeadium +
Taxon rankspecies +
VolumeVolume 3 +