Eastern Mojave Vegetation Flower of Coll. No. 2788, Rhamnus cathartica  
 

 

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  Rhamnaceae Rhamnus cathartica
Microphotograph 17 June 2022.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Rhamnaceae

Rhamnus cathartica L.  European Buckthorn.

Apex Park - Northern Parcel, Jefferson County, Colorado. Just insude the northeast corner of Apex Park - North, about 61 m. from the northeast property corner, 4.43 km. south of the GNIS location of Golden 39.7251N, 105.2171W. WGS 1984 Elev. 1842 m. Lf. margin crenate, teeth with dark gland, style 4-parted. Beside intermittent stream, edge of Prunus americana thicket, with Arctium minus and Cynoglossum officinale. At least three plants here. Introduced to Colorado; escaping from cultivation into canyons and along streams.

Collected by permit: Jefferson County Open Space, 2022, issued: Apr 5, 2022, to: Tom Schweich.

Tom Schweich 2788. 10-Jun-2022

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Date and time this page was prepared: 9/21/2022 1:02:14 PM