Ambrosia psilostachya
(Western Ragweed)

Other pictures of this plant:

               Seedpod                                           Leaf                                            Stem                                        Seed                                          Habit


Facts About this Plant:

    Common Names: Western Ragweed, Perennial Ragweed, Cuman Ragweed
    Synonyms: Ambrosia californica, Ambrosia coronopifolia, Ambrosia cumanensis, Ambrosia rugelii
    Lifespan: Perennial
    Zones: 3 - 9
    Type: Forb
    Bloom Time: July - October
    Status: Native

Ambrosia psilostachya, or Western Ragweed, is native to the almost the entire continental US, but is not reported in West Virginia, Virginia or Kentucky. It is a perennial that grows in dry, often sandy areas, along roadsides, railroads, woodland edges and in disturbed or waste areas. It blooms in mid to late summer into fall with small yellow-green flowers.

More information will be made available soon about this species and telling it apart from others.

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