Need help fast

Asked October 26, 2015, 5:20 PM EDT

I need to know the name of this plant

Polk County Iowa

1 Response

Hi. That looks to be an ash tree (genus Fraxinus), probably green ash (Fraxinus pennsylvanica) based on its very short leaflet petioles and its five leaflets (usually they have seven, but five is within the range of variation). Examining a leaf scar (where the leaflet attaches to the branch) can help you confirm this identification. The top of the leaf scar is flat in green ash. This page from ISU contains additional information about identifying green ash, including nice photos. You should also compare your specimen to white ash (F. americana) if a species identification is important to you.