University of Colorado Museum of Natural History Herbarium Vascular Plant Collection
Catalog #: 00906339
Secondary Catalog #: 535902
Taxon: Ambrosia artemisiifolia var. elatior (L.) Descourtils
Collector: Francis Daniels   516   
Date: 1906-07-19
Verbatim Date: 19 July 1906
Locality: United States, Colorado, Boulder, Along the railroad between Boulder and Marshall.
39.9640454  -105.2369897 +-5000m.  WGS84
Georeference Remarks: I plotted the UTM near Marshall south of Boulder. The railroad no longer appears on the map so the location is an estimate. RA
Elevation: 1646 meters
Verbatim Elevation: 5400 ft
Habitat: Along the railroad.
Reproductive Condition: Flr
Occurrence Remarks: Ambrosia artemisiifolia L. Det. William A. Weber. 18 June 1949. Original ID: Ambrosia psilostachya DC. Voucher: Daniels, F.P., 1911. Flora of Boulder, Colorado and vicinity. U. of Missouri Studies 2 (2): 1-311.
Specimen Images
Link to Source: COLO #00906339
Record Id: cfbb929a-e874-4d04-86ae-f33099d24ecb
Occurrence ID (GUID): 0c3faffb-bce1-44bc-b570-8c4eeab90a21
For additional information on this occurrence, please contact: J Ryan Allen (
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