Vascular Plants - Caryophyllaceae - Dianthus:
Dianthus barbatus
sweetwilliam 
Blooms: June - August
Habit: herb
Duration: perennial
Origin: Introduced from Europe
Distribution: Introduced ornamental that occastionally escapes in western Washington and Oregon.
Habitat: Wasteland and disturbed soil.
Species Description:

General: Glabrous perennial with several erect to decumbent-based stems 2-6 dm. tall.
Leaves: Basal leaves several, oblong-lanceolate, 1-2 cm. broad; cauline leaves 4-10 pairs, lanceolate, 4-9 cm. long.
Flowers: Basal leaves several, oblong-lanceolate, 1-2 cm. broad; cauline leaves 4-10 pairs, lanceolate, 4-9 cm. long.
Fruits: Capsule 1-celled, opening by 4 valves, shorter than the calyx.
Accepted Name:
Dianthus barbatus L.
Synonyms:
(none)

Treated in Flora of the PNW as:
Dianthus barbatus
Additional Resources:

PNW Herbaria Specimens: View list of all Dianthus barbatus specimens in the Consortium of Pacific Northwest Herbaria database.

WTU Herbarium Specimens: View list of Dianthus barbatus specimens in the WTU Herbarium database.

Washington Flora Checklist: Dianthus barbatus treatment.

E-Flora BC: Dianthus barbatus atlas page.

CalPhotos: Dianthus barbatus images.

USDA Plants Database: Dianthus barbatus.
Additional photographs of Dianthus barbatus:
(click on a thumbnail to view larger photo)

Ben Legler, 2005

Ben Legler, 2005

Ben Legler, 2005

Ben Legler, 2005

Ben Legler, 2005

Ben Legler, 2005

Ben Legler, 2005

Harry Thomas, 2011
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Washington Native Plant Society
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