Vascular Plants - Caryophyllaceae - Cerastium:
Cerastium pumilum
Page Author: Don Knoke
European chickweed 
Blooms: April - May
Habit: herb
Duration: annual
Origin: Introduced
Distribution: Introduced at scattered locations in Washngton.
Habitat: Dry, sandy or gravelly places, roadsides.
Species Description:

General: Annuals with taproots, the stems erect or ascending, branched near the base, 2-12 cm. tall, covered with glandular and non-glandular hairs.
Leaves: Leaves opposite, sessile, 5-15 mm. long and 3-6 mm. wide, hairy; basal leaves oblanceolate to spatulate, the tip obtuse; cauline leaves lanceolate, elliptic, or ovate, acute to obtuse.
Flowers: Inflorescences of lax, 3- to 15-flowered, bracteate cymes; pedicles erect, curved, 3-8 mm. long, glandular-pubescent; sepals 5, green, sometimes red-tipped, oblong-lanceolate, 4-5 mm. long; petals white or purple-tinged, oblanceolate, bilobed, equal to the sepals; stamens 5; styles 5.
Fruits: Capsules narrowly cylindric, slightly curved, 6-9 mm. long.
Accepted Name:
Cerastium pumilum Curtis
Synonyms:
Cerastium glutinosum Fries
Cerastium pumilum Curtis ssp. glutinosum (Fries) Jalas

Treated in Flora of the PNW as:
(not treated in H&C)
Additional Resources:

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

WTU Herbarium Specimens: View list of Cerastium pumilum specimens in the WTU Herbarium database.

Washington Flora Checklist: Cerastium pumilum treatment.

E-Flora BC: Cerastium pumilum atlas page.

CalPhotos: Cerastium pumilum images.

USDA Plants Database: Cerastium pumilum.
Additional photographs of Cerastium pumilum:
(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

G. D. Carr, 2010

G. D. Carr, 2010

G. D. Carr, 2010

G. D. Carr, 2010

G. D. Carr, 2010

G. D. Carr, 2010

G. D. Carr, 2010
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