Glaucium flavum


Stirp. Austr. Fasc. 2: 133. 1763

Common names: Yellow horned-poppy
Basionyms: Chelidonium glaucium Linnaeus Sp. Pl. 1: 506. 1753
Synonyms: Glaucium luteum Scopoli
Treatment appears in FNA Volume 3.
Plants biennial or perennial, to 8 dm. Stems branching. Leaves to 30 cm; basal numerous, blade densely pubescent; basal and proximal cauline with blade lyrate, 7-9-lobed; distal with blade ovate, cordate, distinctly clasping stem; margins deeply dentate. Flowers: pedicels stout, to 4 cm; sepals 20-30 mm; petals yellow, sometimes orangish, sometimes with reddish to violet basal spot, obovate, 25-40 mm. Capsules sublinear, mostly distinctly curved, sometimes straight, to 30 cm, glabrous, tuberculate, or scabrous. 2n = 12.

Phenology: Flowering summer.
Habitat: Open sandy shores and flats, waste places, and on ballast
Elevation: 0-200 m


V3 1122-distribution-map.gif

Ont., Colo., Conn., Md., Mass., Mich., N.J., N.Y., Okla., Oreg., Pa., R.I., Va., Europe, sw Asia.


Native from the Black Sea and Transcaucasus to coastal southern and western Europe, and also well established as a ruderal in central Europe, Glaucium flavum has spread far beyond that range as a ballast waif and occasional garden escape. It should be expected elsewhere in the flora.

Selected References


Lower Taxa


Facts about "Glaucium flavum"
AuthorityCrantz +
BasionymsChelidonium glaucium +
Common nameYellow horned-poppy +
DistributionOnt. +, Colo. +, Conn. +, Md. +, Mass. +, Mich. +, N.J. +, N.Y. +, Okla. +, Oreg. +, Pa. +, R.I. +, Va. +, Europe + and sw Asia. +
Elevation0-200 m +
HabitatOpen sandy shores and flats, waste places, and on ballast +
IllustrationPresent +
Illustration copyrightFlora of North America Association +
IllustratorJohn Myers +
Introducedtrue +
PhenologyFlowering summer. +
Publication titleStirp. Austr. Fasc. +
Publication year1763 +
ReferenceNone +
Source xml grained fna xml/V3/V3 1122.xml +
Special statusIllustrated + and Introduced +
SynonymsGlaucium luteum +
Taxon familyPapaveraceae +
Taxon nameGlaucium flavum +
Taxon parentGlaucium +
Taxon rankspecies +
VolumeVolume 3 +