Cirsium carolinianum

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Cirsium carolinianum is widely distributed in the southeastern United States: on the Gulf coastal plain from Texas to Alabama north through the Ouachita and Ozark highlands to southeastern Missouri; in the Ohio River Valley from southernmost Illinois to southern Ohio and northern Kentucky; and in the southern Appalachians and Piedmont from Alabama and Tennessee to southern Virginia. Cirsium carolinianum, though widespread, is a taxon of conservation concern over part of its range. The replacement of open woods by dense forests brought about by fire suppression has greatly reduced available habitat.

Facts about "Cirsium carolinianum"
apex architecturetwisted +
apex orientationspreading +
apex prominence or shapeflat +
apex shapeacuminate +
array architecturepaniculiform +
base architecture or shapebractlike +
base arrangementseparated +
base arrangement or shapelinear + and elliptic +
base positiondistal cauline +
base shapelong-tapered +, tapered +, decurrent +, spinulose +, dentate + and lobed +
base sizereduced +
blade shapelinear +, oblanceolate +, elliptic +, unlobed +, spinulose +, dentate + and pinnatifid +
body shapeentire +
branch countfew +
branch orientationascending +
branch positiondistal +
chromosome count20 + and 22 +
collar colorationyellowish +
corolla colorationpink-purple + and white +
cypsela colorationbrown +
face countpresent +
face external texturegray-tomentose +, glabrous + and villous +
face orientationmiddle + and appressed +
face positionadaxial +, basal + and outer +
flowering timespringsummer +, apr +, may +, jun + and jul +
habitatwooded areas +, openings +, fields + and roadsides +
involucre architecture or shapearachnoid-ciliate +
involucre shapeovoid + and campanulate +
lobe shapetriangular +, toothed +, lobed + and acuminate +
peduncle sizeslender +
petiole architecturewinged +
petiole sizeslender +
phyllary arrangementimbricate +
phyllary colorationgreen +
phyllary shapelinear +, lanceolate + and linear-lanceolate +
ridge widthnarrow +
root countmany +
root internal texturefibrous +
root sizeslender +
spine orientationascending + and spreading +
spine sizeslender +
stem countsingle +
stem external textureglabrous +, tomentose + and villous +
stem orientationerect +
taproot height or lengthshort +
throat widthwider +
tip size4 +
trichome architectureseptate +
whole organism life stylebiennial +