Oenothera primiveris | |
---|---|
Oenothera primiveris subsp. bufonis | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Myrtales |
Family: | Onagraceae |
Genus: | Oenothera |
Species: | O. primiveris
|
Binomial name | |
Oenothera primiveris |
Oenothera primiveris is a species of flowering plant in the evening primrose family known by the common names yellow desert evening primrose, bottle evening-primrose, and desert evening-primrose. [1] [2]
It is native to the southwestern United States and northern Mexico. [2] [3]
It grows below 4,500 feet (1,400 m) in many types of flat desert habitats, including Creosote bush scrub, Joshua tree woodland, and Pinyon-juniper woodland. [1] It is found in the Mojave Desert. [1] [2]
Oenothera primiveris is a hairy annual herb producing a dense rosette of leaves in which the inflorescence occurs. There is generally no true stem. [4]
The green or grayish leaves are up to 28 centimeters long and have wavy or crinkled edges, or are cut into deep lobes or teeth. [4]
Flowers arise from the axils of the leaves. Each flower has yellow petals up to 4 centimetres (1.6 in) in length which fade orange or red with age. [4] Its bloom period is February through May. [1] [2]
The fruit is a straight or curving capsule up to 6 centimetres (2.4 in) in length. [4]