|Scientific Name||Dieteria bigelovii (Machaeranthera bigelovii)||USDA PLANTS Symbol||MABI|
|Common Name||Bigelow's Tansy-aster, Tall Tansy-aster||ITIS Taxonomic Serial No.||780287|
Life zones and habitat: Foothills to subalpine (5000 to 11200 ft.); meadows, forest clearings, roadsides.
Plant: Erect biennial or perennial, normally 2 to 3 feet tall, moderately branched stems.
Leaves: Stem leaves alternate, sessile, and narrowly lanceolate to oblanceolate 0.2 to 0.6 inches wide and up to 7+ inches long with toothed edges.
Inflorescence: Composite flower heads 1 to 2 inches arranged in terminal panicles, 12 to 60 purple rays, yellow disk florets; several rings of long, narrow, curving, green phyllaries underneath covered with glandular hairs and sticky secretions.
Bloom period: June to October.
References: "Flora of Colorado" by Jennifer Ackerfield, SEINet, American Southwest and SW Colorado Wildflowers.
|BONAP Distribution Map
© Tom Lebsack 2022
Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County