Cirsium scariosum

From Botanical Knowledge
Jump to: navigation, search


Cirsium scariosum is a widely distributed complex of intergrading races distributed from southwestern Canada to northwestern Mexico. These plants range from acaulescent rosettes with a tight cluster of sessile heads to tall, erect, unbranched plants, or moundlike, more or less openly branched herbs. Acaulescent and caulescent plants sometimes occur in the same population.

Facts about "Cirsium scariosum"
apex positioninner +
apex shapenarrowed +, scabro-denticulate +, with expanded , erose-dentate tips +, spineless + and tipped +
array architecturespiciform +, racemiform + and subcapitate +
blade arrangement or shapelinear + and to elliptic +
blade shapeplane +, undulate +, unlobed + and pinnatifid +
branch arrangementcrowded +
chromosome count34 + and 36 +
collar colorationcolored +
corolla colorationwhite +, lavender + and purple +
cypsela colorationlight + and brown +
face architecturewinged-petiolate + and distal +
face architecture or shapebractlike +
face countpresent + and many +
face developmentdeveloped +
face durationpersistent +
face external textureglabrous +, tomentose +, villous +, glabrate +, trichomes +, arachnoid tomentose + and glabrescent +
face orientationappressed +
face othersimilar + and proximal +
face positionadaxial +, basal +, cauline +, distal +, outer + and mid +
face sizereduced +
face widthnarrower +
form architecturecaulescent +
head arrangementsingly + and crowded +
head orientationerect +
involucre external texturearachnoid + and glabrate +
involucre shapeovoid + and hemispheric +
lobe arrangementspaced +
lobe orientationspreading +
lobe shapelinear-lanceolate +, triangular +, spinose-dentate + and lobed +
margin shapeentire + and scarious-fringed +
mound positionlow +
mound shaperounded +
pappus colorationwhite + and tan +
peduncle architectureleafy-bracted +
phyllary arrangementimbricate +
phyllary shapeovate +, lanceolate +, linear + and linear-lanceolate +
spine fragilityto stout +
spine orientationerect + and spreading +
spine shapeflattened +
spine sizeslender +
stem architecturesimple +
stem countabsent +
stem external textureglabrous +, gray-tomentose + and villous +
stem internal texturefleshy +
stem orientationerect +
stem widththickened +
throat sizelarger +
tip shapeerose-dentate +
tip sizeexpanded +
trichome architectureseptate +
whole organism architectureacaulescent +, caulescent +, taprooted + and short-caulescent +
whole organism height or lengthshort +
whole organism life stylebiennial +, perennial + and plant +
whole organism orientationerect +