Long-head poppy
StarPapaver dubium
Synonyms: Papaver rhoeas var. dubium
Western Herbalism Properties
Gallery
Botanical Description
Papaver dubium (long-headed poppy) is an annual herb of the poppy family (Papaveraceae) producing slender, erect, sparingly branched flowering stems up to about 60 cm tall from a slim taproot, the stems covered with stiff, closely appressed bristly hairs. The alternate leaves are deeply pinnately lobed with narrow, coarsely toothed segments, and the foliage exudes a thin white latex when broken. From late spring through midsummer single nodding buds open to large showy four-petalled flowers 30–70 mm across in shades of pale red to orange-red, usually lacking the dark basal blotch of the related common poppy. The fruit is a distinctively elongated, glabrous capsule that is more than twice as tall as wide, narrowing toward the apex and crowned by a flat stigmatic disc narrower than the capsule itself, releasing many tiny seeds through pores beneath the disc. Native to Europe, North Africa, and southwestern Asia and widely naturalised elsewhere, it grows on disturbed sandy or gravelly lime-free soils in arable fields, road verges, and waste ground.
Active Constituents
Rhoeadine and papaverrubines (A, C, D, E)
Rhoeadine-type isoquinoline alkaloidsConcentration: Present in aerial parts and latex; typically reported qualitatively rather than quantified
The characteristic alkaloids of the field-poppy group (Rhoeas section). They are associated with mild, non-narcotic sedative and demulcent activity and, unlike the opium poppy, are not potent opioid agonists.
Berberine
Protoberberine alkaloidConcentration: Reported as a major alkaloid in Papaver dubium subsp. dubium samples
A quaternary yellow alkaloid with documented antimicrobial, anti-inflammatory and metabolic activities in other plants; here it is a marker of the species' protoberberine profile.
Thalifendine
Protoberberine alkaloidConcentration: Co-major alkaloid with berberine in subsp. dubium
A demethyl derivative within the berberine group, contributing to the protoberberine chemistry of the plant.
Roemerine
Aporphine alkaloidConcentration: Principal alkaloid of subsp. laevigatum (and related field poppies)
An aporphine alkaloid reported to have vasodilator, anthelmintic and antiplasmodial activity in laboratory studies.
Protopine and allocryptopine
Protopine-type alkaloidsConcentration: Minor components of the alkaloid fraction
Widely distributed papaveraceous alkaloids with reported antispasmodic and mild sedative properties.
Thebaine
Morphinan alkaloidConcentration: Notably present in Papaver dubium subsp. lecoqii, studied as an alternative thebaine source
The subsp. lecoqii chemotype accumulates thebaine, of interest as a raw material for semi-synthetic opioids; morphine and codeine are characteristically absent from this species.
Preparation Methods
Flower/petal infusion (folk use)
Parts: petals, flowering aerial parts
Like other field poppies, the bright petals have been used in European folk practice as a mild demulcent and gentle sedative syrup or tea. CAUTION: the plant contains a mixture of isoquinoline alkaloids (including protoberberines and, in some chemotypes, thebaine); it is not a validated medicine and should not be relied upon for internal therapeutic use.
Historical Texts
European folk herbals of the field poppies (Papaver rhoeas / P. dubium group)
Medieval to early-modern periodReferences
- Butnariu M, Quispe C, Herrera-Bravo J, et al.. Papaver Plants: Current Insights on Phytochemical and Nutritional Composition Along with Biotechnological Applications . Oxidative Medicine and Cellular Longevity (2022) [DOI]
This information is for educational purposes only and is not intended to replace professional medical advice. Always consult a qualified healthcare provider before using any herbal remedy, especially if you are pregnant, nursing, or taking medications.
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