Vascular Plants - Asteraceae - Madia:
Madia citriodora
Page Authors: Don Knoke, David Giblin
lemon-scented madia, lemon tarweed, lemon scented tarplant 
Blooms: May-June
Habit: herb
Duration: annual
Origin: Native
Conservation Status: Abundant; of no concern.

Distribution: Occurring east of the Cascades crest in Washington; Washington south to California, east to Nevada.
Habitat: Dry, open hillsides and foothills.
Species Description:

General: Strongly lemon-scented annual, 1.5-6 dm. tall, covered with short, stiff hairs throughout and stalked glands upward.
Leaves: Leaves lanceolate to linear, 2-8 cm. long and 1.5-10 mm. wide, entire.
Flowers: Heads several in an open inflorescence, the lateral branches often topping the central; involucre 6-8 mm. high, ovoid, the bracts in a single series, equal, the flat tips of the bracts well developed, the lower portion clasping the ray achene; rays 5-8, 6-10 mm. long, pistillate and fertile, bright yellow; disk flowers sterile, yellow, surrounded by a cup of united bracts attached to the receptacle, which is covered with erect, straight hairs; pappus none.
Fruits: Achenes three-sided, one side rounded.
Accepted Name:
Madia citriodora Greene
Synonyms:
(none)

Treated in Flora of the PNW as:
Madia citriodora
Additional Resources:

PNW Herbaria Specimens: View list of Madia citriodora specimens in the Consortium of Pacific Northwest Herbaria database.

WTU Herbarium Specimens: View list of Madia citriodora specimens in the WTU Herbarium database.

Washington Flora Checklist: Madia citriodora treatment.

E-Flora BC: Madia citriodora atlas page.

CalPhotos: Madia citriodora images.

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

Don Knoke, 2005

Don Knoke, 2005

Don Knoke, 2008

Don Knoke, 2008

G. D. Carr, 2009

G. D. Carr, 2009

G. D. Carr, 2009

G. D. Carr, 2009

G. D. Carr, 2009

G. D. Carr, 2009

G. D. Carr, 2009
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Washington Native Plant Society
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