| Dieteria bigelovii | |
|---|---|
 | |
| Dieteria bigelovii var. commixta in Cedar Breaks Utah | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Dieteria |
| Species: | D. bigelovii |
| Binomial name | |
| Dieteria bigelovii | |
| Synonyms [2] | |
Synonymy
| |
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]
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