Vascular Plants - Malvaceae - Malva:
Malva sylvestris
Page Author: David Giblin
high mallow, common mallow 
Blooms: May-September
Habit: herb
Duration: annual,biennial,perennial
Origin: Introduced
Distribution: Scattered locations on both sides of the Cascades in Washington; widely distributed throughout North America.
Habitat: Waste places and disturbed soil.
Species Description:

General: Annual or biennial herbs 2-5 dm. tall, usually covered with small, appressed, aligned hairs.
Leaves: Leaves palmately veined, with stipules 2-4 mm. long; leaf blades considerably shorter than the petioles, cordate-ovate, 3-7 cm. long, 5 lobed about 1/3 of their length, the lobes with rounded teeth.
Flowers: Flowers in small clusters in the leaf axils, deep bluish-purple; calyx lobes 5, nearly half as long a broad, the bracteoles oblong or ovate; petals 1.5-2 cm. long, shallowly notched; filaments fused into a tube, the stamens freed from the tube single or in pairs; style branches stigmatic most of their length, not capitate; ovary superior, the carpels in a ring around a central axis.
Fruits: Carpels wrinkled, sparsely hairy.
Accepted Name:
Malva sylvestris L.
Synonyms:
(none)

Treated in Flora of the PNW as:
Malva sylvestris
Additional Resources:

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

WTU Herbarium Specimens: View list of Malva sylvestris specimens in the WTU Herbarium database.

Washington Flora Checklist: Malva sylvestris treatment.

E-Flora BC: Malva sylvestris atlas page.

CalPhotos: Malva sylvestris images.

USDA Plants Database: Malva sylvestris.
Additional photographs of Malva sylvestris:
(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

G. D. Carr, 2007

G. D. Carr, 2007

G. D. Carr, 2007

G. D. Carr, 2007

Clayton J. Antieau, 1993
(password required)

Burke Museum


©2018 Burke Museum of Natural History and Culture.
All Rights Reserved. Box 353010, University of Washington,
Seattle, WA 98195-3010, Phone: 206-543-5590.
On the UW campus at 17th Avenue NE and NE 45th Street.
Washington Native Plant Society
WA Native Plant Society