Plants of St. Vrain State Park

St. Vrain State Park is centrally located in the northern Front Range in western Weld County about five miles east of the City of Longmont. It is a popular recreation destination, especially for people from Longmont and other parts of the northern Front Range and, to a lesser extent, from the ...more ↓

Taxonomy
« Back To Sunflowers, Daisies, Asters, and Allies Family Asteraceae
- Thistles and Allies Subfamily Carduoideae
  - 5 Thistles and Burdocks Subtribe Carduinae
  - 2 Subtribe Centaureinae

Canada thistle ¹
Cirsium arvense

spear thistle ²
Cirsium vulgare

musk thistle ³
Carduus nutans

lesser burdock ⁴
Arctium minus

Cotton Thistle ⁵
Onopordum acanthium

Russian knapweed ⁶
Leuzea repens

diffuse knapweed ⁷
Centaurea diffusa

Edited by Colorado Parks and Wildlife, some rights reserved (CC BY-SA)

Photo Credits

1. (c) Udo Schmidt, some rights reserved (CC BY-SA)
2. (c) Sciadopitys, some rights reserved (CC BY-SA)
3. (c) Jon Sullivan, some rights reserved (CC BY)
4. (c) Willie Angus, some rights reserved (CC BY-NC)
5. (c) Alwyn Ladell, some rights reserved (CC BY-NC-ND)
6. (c) Stan Shebs, some rights reserved (CC BY-SA)
7. (c) Franz Xaver, some rights reserved (CC BY-SA)

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