Ambrosia psilostachya

Ambrosia psilostachya de Candolle is an accepted species name sensu FNA Ed. Comm., 2006c.

Vernacular names

• herbe à poux vivace Darbyshire et al., 2000

• perennial ragweed Darbyshire et al., 2000
• Cuman ragweed ITIS, 2010
• western ragweed Harms, 2006

Synonyms

• Ambrosia coronopifolia Torrey & A. Gray POWO
• Ambrosia psilostachya var. californica (Rydberg) S.F. Blake FNA Ed. Comm., 2006c
• Ambrosia psilostachya var. coronopifolia (Torrey & A. Gray) Farwell FNA Ed. Comm., 2006c
• Ambrosia psilostachya var. lindheimeriana (Scheele) Blankinship FNA Ed. Comm., 2006c
• Ambrosia rugelii Rydberg FNA Ed. Comm., 2006c

Distribution

• Map view
• List view

• Native
• Introduced
• Ephemeral
• Excluded
• Extirpated
• Doubtful
• Absent

Classification

Class	Equisetopsida
Subclass	Magnoliidae
Superorder	Asteranae
Order	Asterales
Family	Asteraceae
Subfamily	Asteroideae
Tribe	Heliantheae
Genus	Ambrosia
Species	Ambrosia psilostachya

Habit

Herb