Dieteria bigelovii, also known as Bigelow's tansyaster[3] or sticky aster,[4] is a North American species of plants in the family Asteraceae.
D. bigelovii is a biennial or perennial herb growing to 30–90 centimetres (12–35 inches) in height. The leaves are 5–10 cm (2–4 in) long with sharp teeth.[4] Between August and October, the plant produces several flower heads about 4 cm (1+1⁄2 in) wide.[4] The blue or purple ray florets are female, while the yellow disc florets are bisexual.[5][6] The ray florets close upwards in shade.[4] The fruit is seedlike, with bristles at the tip.[4]
True asters are similar, but usually lack spiny or divided leaves.[4]
The species is native to the southwestern United States (Arizona, New Mexico, Utah, Colorado, and Albany County in Wyoming).[7] It can be found in open areas of coniferous forests.[4]
Dieteria bigelovii was evaluated by NatureServe as G4, "apparently secure", in 1993. This means that at a global level it has fairly low risk of extinction or collapse due to an extensive range and/or many populations or occurrences, but with possible cause for some concern as a result of local recent declines, threats, or other factors. It was additionally rated critically imperiled (S1) in Nevada, imperiled (S2) in Wyoming, and vulnerable (S3) in Arizona.[1]
Dieteria bigelovii, also known as Bigelow's tansyaster or sticky aster, is a North American species of plants in the family Asteraceae.
