Dimeresia
| doublet | |
|---|---|
 | |
| Dimeresia howellii | |
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Tribe: | Heliantheae |
| Genus: | Dimeresia A.Gray |
| Species: | D. howellii |
| Binomial name | |
| Dimeresia howellii A.Gray | |
| Synonyms[1] | |
| |
Dimeresia is a monotypic genus in the sunflower family containing the single species Dimeresia howellii, known by the common name doublet.[2][3]
The doublet is a very tiny annual flowering plant rarely exceeding 4 centimeters in height or width. It forms a small tuft on the ground with several oval-shaped leaves and an inflorescence of tiny white to purple bell-shaped flowers each a few millimeters long. This uncommon plant is found in one region in the western United States (States of California, Oregon, Idaho, and Nevada), primarily in the volcanic plain known as the Modoc Plateau.[4][5]
