Cirsium muticum

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Cirsium muticum is very widely distributed across the eastern half of North America from the prairies of southeastern Saskatchewan across southern Canada to Newfoundland and south in the United States from North Dakota and Maine to southeastern Texas and northern Florida. It is more common in the northern half of this range and extends from the coastal plain to the Appalachian highlands. The widely scattered populations in coastal lowlands in the southern United States may be relicts of the glacial distribution of the species.

Facts about "Cirsium muticum"
apex coursestraight + and flexuous +
apex shapeobtuse +, acute + and flattened +
array architectureopen + and paniculiform +
base architectureprincipal +, sessile +, clasping + and spinier than the proximal +
base architecture or shapebractlike +
base positiondistal cauline +
base shapetapered + and decurrent +
base sizereduced +
body architecture or shapespinulose +
branch orientationascending +
chromosome count20 +, 21 +, 22 +, 23 + and 30 +
collar colorationyellow +
collar size0.3 +
corolla colorationlavender +, purple + and white +
cypsela colorationbrown +
face countabsent +
face external texturetomentose +, glabrate +, villous + and pilose +
face orientationappressed +
face positionbasal +, outer + and middle +
flowering timesummerjul +, aug + and sep +
habitatwet soil in meadows , prairies , marshes , swamps , bogs + and open woods +
involucre external texturearachnoid +
involucre shapeovoid +, cylindric + and campanulate +
leaf shapeovate +, elliptic +, obovate + and pinnatifid +
lobe arrangement or shapelinear +
lobe shapelinear +, lanceolate +, acute +, acuminate +, few + and lobed +
patch colorationdarker +
petiole architecturespiny-winged +
phyllary arrangementimbricate +
phyllary colorationgreen +
phyllary reflectancedull +
phyllary shapeovate + and linear-lanceolate +
ridge widthnarrow +
ring shapeinvolucrelike +
specimen internal texturedry +
spine orientationerect +
stem countsingle +
stem external texturevillous +, glabrate + and tomentose +
stem orientationerect +
taproot internal texturefleshy +
throat widthwider +
trichome architectureseptate +
whole organism life stylebiennial +