City of Boulder
Catalog #: CIBO-0000252
Secondary Catalog #: 1145
Taxon: Ambrosia artemisiifolia var. elatior (L.) Descourtils
Family: Asteraceae
Determiner: W. A. Weber (7/30/1999)
Collector: Ann Cooper   82   
Date: 1986-09-14
Verbatim Date: 9/14/1986
Locality: United States, Colorado, Boulder, Area: Tall Grass Parcel 9; OSProperty: Yunker; 1 mile east of Cherryvale Rd. on south side of Hwy 36.
39.97083  -105.20205 +-500m.  WGS84
Verbatim Coordinates: T1S R70W sec 14 NW¼ of NW¼
Georeference Remarks: I placed the point south of Hwy 36 in the NW 1/4 of the NW 1/4 of section 14 along the 5500 ft contour line. This is less than 1 road mile from Cherryvale. RA; Geocoded 2/4/2019
Elevation: 1676 meters
Verbatim Elevation: 5500 ft.
Reproductive Condition: Flower
Occurrence Remarks: Common Name: Ragweed; Originally entered without subspecies. Subspecies included per Weber 1996 and 1992. But note that Weber 1995 lists simply A. artemisiifolia.
Specimen Images
Record Id: a43165ca-0af2-487b-9bf4-032d067a5aea
For additional information on this occurrence, please contact: Ann Lezberg (
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