Cirsium rydbergii

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Cirsium rydbergii is endemic to the Colorado Plateau of northern Arizona and southeastern Utah.

Facts about "Cirsium rydbergii"
apex colorationgreen + and brownish +
apex orientationspreading + and reflexed +
apex shapelance-ovate +, elongate +, flattened + and entire +
array architecturepaniculiform +
base architectureclasping +
base architecture or shapebractlike + and spiny +
base orientationappressed +
base positionouter +
base shapeshort-decurrent +, distal + and lanceolate +
blade arrangement or shapeelliptic +
blade shapelobed +
bract architectureleafy +
bract arrangement or habitclustered +
branch orientationascending +
caudex orientationspreading +
chromosome count34 +
collar variabilitydifferentiated +
corolla colorationdull +, pink + and purple +
cypsela colorationgray + and brown +
face architecturewinged-petiolate + and sessile +
face countpresent +
face external textureglaucous +, glabrous +, tomentose + and glabrescent +
face other or positionproximal cauline +
face positionbasal + and mid +
face shapelobed +
face sizereduced +
flowering timespringsummer +, may +, jun +, jul +, aug + and sep +
habitathanging gardens +, seeps + and stream banks +
habitat inclinesloped +
habitat moisturewet +
head orientationerect + and nodding +
involucre shapehemispheric +
lobe shapelinear +, ovate + and undulate +
margin external texturetomentose +, glabrate + and scabridulous-ciliolate +
margin shapeentire +
phyllary arrangementimbricate +
phyllary colorationgreen +, drying + and brown +
phyllary shapeovate + and lance-oblong +
ridge developmentdeveloped +
spine sizeslender +
stem architecture or arrangementlax +
stem external textureglabrous + and tomentose +
stem orientationerect +, ascending + and hanging +
taproot orientationspreading +
tip size2.5 +
whole organism life styleperennial +