ambrosia psilostachya
western ragweed - Sunflower family (Asteraceae)
ambrosia psilostachya
ambrosia psilostachya
western ragweed
large lobed or toothed grey-greeen leaves; male flowers in spikes
Sep 9 2012
Date: 09.06.2012 08:10:01
ambrosia psilostachya
western ragweed
large lobed or toothed grey-greeen leaves; male flowers in spikes
Sep 9 2012
 ambrosia psilostachya
ambrosia psilostachya
western ragweed
abundant, erect habit; pollen widely known for causing hay fever
Date: 09.06.2012 08:09:53
ambrosia psilostachya
western ragweed
abundant, erect habit; pollen widely known for causing hay fever