Seed Study - Ambrosia psilostachya

Ambrosia psilostachya - Western Ragweed
Ambrosia psilostachya - Western Ragweed

Species: Ambrosia psilostachya
Common name: western ragweed

Seedling identification: First leaves are tri-lobed and coarsely pubescent. Sharp outward pointing hairs line the leaf margin.

 

Last updated: April 10, 2015

Contact the Park

Mailing Address:

26611 US Highway 385
Hot Springs, SD 57747

Phone:

(605) 745-4600

Contact Us