UW Burke Herbarium species comparison

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Convolvulus arvensis

field bindweed
Habit Perennial herbs from deep, widespread rhizomes, the stems trailing and somewhat twining, 2-20 dm. long, glabrous to densely pubescent.
Leaves

Leaves alternate, petiolate;

leaf blades usually sagittate or hastate, obtuse or pointed, 2-6 cm. long.
Flowers

Flowers in the axils on peduncles exceeding the leaves, single with a pair of bracts about mid-length, or two with the shorter peduncle bractless;

calyx divided to the base, the 5 lobes oblong, 4-5 mm. long, with papery margins;

corolla funnel-shaped, white or purplish-pink, at least on the outside, 3-5 cm. long;

stamens 5, attached near the base of the corolla alternate with the lobes;

style slender, exceeding the stamens, the stigmas slightly flattened;

ovary 2-celled, superior.
Fruits

Capsule oblong-obconic, 5-7 mm. long

Convolvulus arvensis
Flowering time April-October
Habitat Fields, roadsides, open areas, wastelots, and other disturbed sites.
Distribution
Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
[WildflowerSearch map]
[BONAP county map]
Origin Introduced from Europe
Conservation status Not of concern
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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