Eastern Mojave Vegetation Coll. No. 3210, Cirsium arvense.  
 

 

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If you have a question or a comment about this photograph you may write to me at: tomas@schweich.com I sometimes post interesting questions in my FAQ, but I never disclose your full name or address. 		  Asteraceae Cirsium arvense
Photographed 1 February 2024.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Asteraceae

Cirsium arvense (L.) Scop.  Canada Thistle.

Guy Gulch, Jefferson County, Colorado. Broken shade up a small gulch 30 m. northeast of the Centennial Ranch house, 12.2 km. (geodesic) northwest of the GNIS location of Golden. 39.79491°N, 105.35385°W. WGS Elev. 2357 m. EDDMapS Record ID __________

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with John Vickery 3210. 8-Sep-2023

Article records that use this photograph:

Other photos about Species - Asteraceae or Cirsium arvense.

 

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Date and time this page was prepared: 12/8/2024 2:15:48 PM