Ambrosia artemisiifolia var. elatior (L.) Descourtils
Asteraceae
W. A. Weber (7/30/1999)
Elaine Smith
823
1990-08-22
8/22/1990
United States, Colorado, Boulder, OSProperty: Van Vleet; OSTrail: South Boulder Creek; 100 ft S of So Boulder Rd, 1/3 mi E of its Jct with Thunderbird Pkwy, near old farm buildings. Near South Boulder cr Trailhead.
39.98579 -105.22384 +-250m. WGS84
T1S R70W sec 9 NE¼ of NE¼
I placed the point in the NE 1/4 of the NE 1/4 of section 9, 1/3 of a mile east of Thunderbird and 100 feet south of South Boulder Road. RA; Geocoded 2/1/2019
1615 meters
5300 ft.
In irrigated field, among grasses,
Flower
Common Name: Annual ragweed; Old erroneous accession #448 changed on 7/5/2018 in database and on 8/13/18 on the herbarium sheet.