UW Burke Herbarium species comparison

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Papaver californicum

Papaver dubium

Habit Annuals from taproots, the stems simple or branching, covered with appressed, stiff hairs, up to 7 dm. tall.
Leaves

Basal leaves in a rosette, petiolate;

cauline leaves alternate, the lower petiolate, becoming sessile upward;

leaf blades to 20 cm. long, pinnately lobed, the margins with rounded teeth.
Flowers

Flowers single or in 2s or 3s on long peduncles or scapes;

buds nodding;

sepals 2, distinct;

petals 4, orange to red, without a dark basal spot, up to 3 cm. long;

stamens many, the anthers violet;

style none.
Fruits

Capsules narrowly obovoid, distinctly ribbed, up to 2 cm. long, at least twice as long as wide.

Papaver californicum

Papaver dubium
Flowering time May-July
Habitat Fields, dunes, marshy areas, roadsides, wastelots, and other disturbed sites.
Distribution
[WildflowerSearch map]
[BONAP county map]
Occurring on both sides of the Cascades crest in Washington; British Columbia to Oregon east to Idaho; also in the central U.S. and eastern North America.
[WildflowerSearch map]
[BONAP county map]
Origin Introduced from Eurasia
Conservation status Not of concern
Sibling taxa
P. argemone, P. dubium, P. rhoeas, P. somniferum
P. argemone, P. rhoeas, P. somniferum
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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