Cirsium brevistylum

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Cirsium brevistylum occurs in the coast ranges and adjacent coastal slope from southwestern British Columbia to southern California. In the Pacific Northwest its range extends inland to the northern Rocky Mountains of southern British Columbia, Idaho, and northwestern Montana, and the Blue and Wallowa ranges of eastern Oregon. It is absent from the central and southern Cascade Range.

Facts about "Cirsium brevistylum"
apex arrangementradiating +
apex orientationto ascending +
apex prominence or shapeflat +
apex widthnarrow +
array architecturesubcapitate + and tight +
base architectureclasping + and spinier than the proximal +
base orientationshort-appressed +
base positiondistal + and outer +
base shapeshort-decurrent +
base sizereduced +
blade shapeoblong +, elliptic +, oblanceolate +, flat +, undulate +, dentate + and pinnatifid +
bract architectureleafy +
bract arrangement or habitclustered +
branch orientationascending +
chromosome count34 +
collar colorationstramineous +
collar size0.2 +
corolla colorationwhite +, pink + and purple +
corolla sizeslender +
cypsela colorationbrown +
face architecturewinged-petiolate + and sessile +
face arrangementdistributed +
face countabsent +
face external texturegray-tomentose +, villous +, glabrescent + and viscid-pilose +
face otherprincipal +
face other or positionproximal +
face positionadaxial +, basal +, cauline +, mid + and distal +
face sizereduced +
flowering timespringsummer +, apr +, may +, jun +, jul +, aug + and sep +
habitatcoastal meadows +, marshes +, swamps +, riparian woodlands +, moist sites in coastal scrub +, chaparral +, coastal woodlands +, mixed conifer-hardwood forests + and coniferous forests +
habitat moisturewet +
head arrangementcrowded +
head orientationerect +
involucre external texturearachnoid +
involucre shapehemispheric + and campanulate +
lobe shapetriangular +, spinulose +, spiny-dentate +, lobed + and filiform +
margin shapespiny-fringed +, entire + and serrulate +
phyllary arrangementradiating +
phyllary colorationgreen +
phyllary fusionconnected +
phyllary shapelinear-acicular +
phyllary sizesubequal +
spine coursestraight +
spine sizeslender +
stem architecturesimple + and branched +
stem count1 +
stem external texturevillous +, viscid-pilose + and arachnoid +
stem orientationerect +
tip positionincluded + and exserted +
tip shapeknoblike +
trichome architecturejointed +, long + and non-septate +
vein sizetaxonname-major +
whole organism architecturetaprooted +
whole organism life styleannual + and biennial +