University of Colorado Museum of Natural History Herbarium Vascular Plant Collection
Catalog #: 00906545
Occurrence ID (GUID): 3cc60fa6-18f6-44ad-aff1-b3fba3cbf945
Secondary Catalog #: 535915
Taxon: Helianthus petiolaris Nuttall
Collector: Francis Daniels   67   
Date: 1906-07-23
Verbatim Date: 23 July 1906
Locality: United States, Colorado, Boulder, Flats of Boulder creek and about ditches, Boulder.
Elevation: 1676 meters
Verbatim Elevation: 5500 ft
Habitat: Flats of Boulder creek and about ditches, common.
Phenology: Flr
Notes: Helianthus petiolaris Nuttall. Det. E.E.W., 1934. / Helianthus petiolaris Nuttall. Det. William A. Weber. 18 June 1949. Small specimen monstrously tri-headed. 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 #00906545
Record Id: 4babb921-a472-41a6-9924-eb62b39e9966
For additional information on this specimen, please contact: J Ryan Allen (
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