Ambrosia artemisiifolia var. elatior (L.) Descourtils
Asteraceae
W. A. Weber (7/30/1999)
J. Shawver
113
1990-08-16
8/16/1990
M. Wendler
United States, Colorado, Boulder, Area: Boulder Creek Corridor; OSProperty: Van Vleet; Boulder Creek Corridor on S side of So Boulder Rd. 0.6 mi E of its junction w/ Foothills Pkwy.
39.98095 -105.22119 +-1000m. WGS84
T1S R70W sec 10
I placed the point along South Boulder Creek at the 5350 ft contour line in section 10. This is less than 0.6 miles east of Foothills Parkway. RA; Geocoded 2/4/2019
1631 meters
5350 ft.
In dry area.
Flower
Common Name: Ragweed; Subspecies included per Weber 1996 and 1992. But note that Weber 1995 lists simply A. artemisiifolia.