Canada Thistle (Cirsium arvense)
Genus Cirsium / Family Asteraceae / Order Asterales / Class Magnoliopsida / Phylum Tracheophyta / Kingdom Plantae
Canada Thistle in Anne Arundel Co., Maryland (6/16/2017).
Canada Thistle in Howard Co., Maryland (6/26/2018).
Canada Thistle in Howard Co., Maryland (7/7/2016).
Canada Thistle in Anne Arundel Co., Maryland (9/9/2017).
Canada Thistle in Howard Co., Maryland (7/4/2017).
Canada Thistle in Baltimore Co., Maryland (7/1/2017).
Canada Thistle in Montgomery Co., Maryland (5/20/2018).
Canada Thistle in Anne Arundel Co., Maryland (6/28/2018).
Canada Thistle in Queen Anne's Co., Maryland (8/4/2018).
Canada Thistle in Frederick Co., Maryland (7/29/2018).
Canada Thistle in Anne Arundel Co., Maryland (4/14/2019).
Canada Thistle in Baltimore City, Maryland (8/13/2016).
Canada Thistle in Howard Co., Maryland (7/2/2016).
Canada Thistle in Howard Co., Maryland (7/28/2017).
Canada Thistle in Anne Arundel Co., Maryland (12/2/2018).
Canada Thistle in Queen Anne's Co., Maryland (6/24/2017).
Canada Thistle in Montgomery Co., Maryland (6/4/2016).
Canada Thistle (Cirsium arvense)
Genus Cirsium / Family Asteraceae / Order Asterales / Class Magnoliopsida / Phylum Tracheophyta / Kingdom PlantaeTotal Records: 35
Canada Thistle (Cirsium arvense) - Map
For now, here's a fun heat map representation of my personal sightings in iNaturalist courtesy of iNaturalist.