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Erigeron vreelandii : ウィキペディア英語版 | Erigeron vreelandii
''Erigeron vreelandii'' is a North American species of flowering plant in the daisy family known by the common names sticky tall fleabane〔 and Vreeland's erigeron. It grows in northwestern Mexico (State of Sonora) and in the southwestern United States (Arizona, New Mexico, Colorado).〔(Biota of North America Program 2014 county distribution map )〕 ''Erigeron vreelandii'' grows on rocky slopes in open areas in forests or woodlands dominated by pine, oak, or fir. It is a perennial herb up to 80 centimeters (32 inches) tall, producing a rhizomes and a branching woody caudex. It generally produces 1-22 flower heads per stem. Each head contains 75–150 blue or lavender ray florets, surrounding numerous yellow disc florets.〔(Flora of North America, ''Erigeron vreelandii'' Greene, 1905. Sticky tall fleabane )〕〔(Rydberg, Per Axel 1905. Studies on the Rocky Mountain Flora XIV. Bulletin of the Torrey Botanical Club 32(3): 125 )〕 ==References==
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