City of Boulder
Catalog #: CIBO-0000296
Secondary Catalog #: 1144
Taxon: Ambrosia psilostachya var. coronopifolia (Torr. & A. Gray) Farw.
Family: Asteraceae
Determiner: W. A. Weber (7/30/1999)
Collector: T. Marshall   392   
Date: 1988-08-04
Verbatim Date: 8/4/1988
Additional Collectors: J. Shawver, E. Smith
Locality: United States, Colorado, Boulder, Area: South Boulder Foothills; OSProperty: Wells; OSTrail: Shanahan; Shanahan Trail, 0.25 mi W of trailhead.
39.966275  -105.262607 +-200m.  WGS84
Georeference Remarks: Georeferenced to N fork Shanahan Trail, 0.25 miles west of Shanahan Ridge Trailhead (as measured along trail).
Elevation: 1829 meters
Verbatim Elevation: 6000 ft.
Habitat: Dry meadow.
Description: Flowers yellow, not showy.
Reproductive Condition: Flower
Notes: Common Name: Western Ragweed;
Specimen Images
Record Id: d2415b22-c409-4367-9202-e539c3ccbf81
For additional information on this specimen, please contact: Ann Lezberg (
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