Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Cirsium muticum
FAMILY
Asteraceae__
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Swamp Thistle at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Cirsium muticum
FAMILY
Asteraceae__
SYNONYMOUS WITH Flora of North America
Cirsium muticum
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-25-011:
Carduus muticus FAMILY Asteraceae__
SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Cirsium muticum
COMMON NAME:
Swamp Thistle
To see larger pictures, click or hover over the thumbnails.
Jeff Ausmus jma_cirmut
August Roscommon County MI
Roscommon State Forest Area: Higgins Township
Stems smooth, per Wildflowers of the Southern Mountains (Smith, 1998).
Jeff Ausmus jma_cirmut3
August Roscommon County MI
Roscommon State Forest Area: Higgins Township
Involucres spineless but covered with cobwebby hairs; each bract with a sticky glutinous midrib, per Wildflowers of the Southern Mountains (Smith, 1998).
COMPARE
involucral bracts of Thistles
Richard and Teresa Ware rtw_cirsium_muticum
August
Involucres 0.8-1.4" with sticky hairy bracts that usually don't have spines, per Wildflowers of Tennessee (Carman, 2005).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Cirsium muticum
FAMILY
Asteraceae__
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Cirsium muticum
FAMILY
Asteraceae__
SYNONYMOUS WITH
Flora of North America
Cirsium muticum
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-25-011:
Carduus muticus
FAMILY
Asteraceae__
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Cirsium muticum