Cirsium pulcherrimum

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Cirsium pulcherrimum is closely related to C. clavatum. In southeastern Wyoming and northern Colorado some plants combine foliage and involucral characters of C. pulcherrimum var. pulcherrimum and C. clavatum var. americanum. The inheritance of these characters needs to be examined at the population level to determine whether the intermediates are hybrids or the products of past introgression or incomplete differentiation.

Facts about "Cirsium pulcherrimum"
apex courseflexuous +
apex prominence or shapeflat +
apex widthnarrow +
appendage colorationdark +
appendage orientationspreading + and ascending +
appendage shapelinear-lanceolate +, acicular + and entire +
array architectureracemiform +
array architecture or arrangementcongested +
array shapeflat-topped +
base architecture or shapebractlike +
base orientationappressed +
base positiondistalmost + and outer +
base shapedecurrent +
base sizereduced +
blade shapelinear +, oblong +, oblanceolate +, elliptic +, unlobed +, spinulose +, spiny-dentate + and pinnatifid +
branch orientationascending +
caudex internal texturewoody +
caudex locationdeep-seated +
chromosome count34 +
cluster architecture or shape2-3-headed +
collar colorationyellow +
collar widthnarrow +
corolla colorationpink +, purple + and white +
cypsela colorationtan + and brown +
face architecturewinged-petiolate + and sessile +
face arrangementdistributed +
face colorationgray +, white + and green +
face countpresent +
face external texturearachnoid-tomentose +, glabrate +, villous +, glabrous + and gray-tomentose +
face otherprincipal +
face other or positionproximal +
face positionadaxial +, basal +, cauline +, mid + and distal +
face sizereduced +
head arrangementsingly + and in 2-3-headed clusters +
involucre external texturearachnoid-tomentose + and glabrate +
involucre shapeovoid + and campanulate +
lobe arrangementseparated +
lobe sizeslender +
margin shapeentire +
patch colorationdark +
phyllary arrangementimbricate +
phyllary colorationgreen + and with dark subapical patch or appendage +
phyllary shapelinear + and linear-lanceolate +
ridge widthnarrow +
sinus shapeu-shaped +
sinus widthbroad +
spine arrangementcrowded +
spine fragilitystout +
spine orientationascending-spreading +, retrorse +, spreading + and ascending +
spine shapelinear +, triangular-ovate +, spinulose +, dentate +, few + and flattened +
stem external texturearachnoid-tomentose + and glabrate +
stem orientationerect + and ascending +
taproot internal texturewoody +
taproot locationdeep-seated +
trichome architectureseptate +
whole organism life styleperennial +
whole organism reproductionpolycarpic +
wing architecture or shapespiny +