| Calochortus monanthus | |
|---|---|
| Conservation status | |
|
Possibly extinct; see text
|
|
| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Monocots |
| Order: | Liliales |
| Family: | Liliaceae |
| Genus: | Calochortus |
| Species: | C. monanthus |
| Binomial name | |
| Calochortus monanthus Ownbey |
|
Calochortus monanthus is a species of flowering plant in the lily family known by the common names single-flowered mariposa lily and Shasta River mariposa lily. It is presumed extinct, having been collected and documented once over a century ago and never found again. The single known specimen was collected by botanist Edward Lee Greene from a meadow on the banks of the Shasta River near Yreka, California, in June of 1876. The plant had an unbranching stem and an inflorescence of a single erect, bell-shaped flower on a long peduncle. The flower had three sepals about 4 centimeters long and three toothed petals each between 4 and 5 centimeters. The petals were pinkish with a dark red spot at each base.