University of Colorado Museum of Natural History Herbarium Vascular Plant Collection
Catalog #: 00906537
Secondary Catalog #: 535913
Taxon: Grindelia squarrosa (Pursh) Dunal
Collector: Francis Daniels   837   
Date: 1906-08-29
Verbatim Date: 29 August 1906
Locality: United States, Colorado, Boulder, Plains, Boulder.
40.0149774  -105.2705492 +-10000m.  WGS84
Elevation: 1707 meters
Verbatim Elevation: 5600 ft
Habitat: Plains.
Reproductive Condition: Flr & Frt
Occurrence Remarks: Grindelia perennis A. Nelson (possible hybrid G. perennis and G. squarrosa var. serrulata). Det. Steyermark. 18/3/1933. / G. squarrosa (G. perennis) has not been found in our area. Det. Weber. 18/6/1949. / G. squarrosa. var. serrulata Det. Wetter 1/1985. Original ID: Grindelia serrulata Rydb. x Grindelia perennis A. Nels. 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 #00906537
Record Id: 7f458119-be68-4c4e-8c90-a335643f7468
Occurrence ID (GUID): 074252b7-fcee-461c-a43e-b3434ac6c526
For additional information on this occurrence, please contact: J Ryan Allen (
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