''Physaria'' is a genus of flowering plants in the family

Brassicaceae Brassicaceae () or (the older) Cruciferae () is a medium-sized and economically important family of flowering plants commonly known as the mustards, the crucifers, or the cabbage family. Most are herbaceous plants, while some are shrubs. The le ...

. Many species are known generally as twinpods, bladderpods, or lesquerella. They are native to the Americas, with many species endemic to western North America. They are densely hairy annual and perennial herbs often growing prostrate or decumbent, along the ground in patches or clumps. They bear

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

s of bright yellow flowers. The fruit is often notched deeply, dividing into twin sections, giving the genus its common name. Bladderpod oil is extracted from the seeds of ''

Physaria fendleri ''Physaria fendleri'' is a species of flowering plant in the family Brassicaceae known by several common names, including Fendler's bladderpod, popweed, and lesquerella. Distribution The plant is native to the Southwestern United States and nor ...

'' and certain other species in the genus.
U.S. Fish and Wildlife Service: Missouri Bladderpod 5-Year Review (2008) Due to the presence of both annual and perennial herbaceous members, this genus has been used as a model for allocation pattern comparisons between the annual and perennial life cycle. Many of species of ''Physaria'' were formerly included in the now-defunct genus '' Lesquerella''. Species include: *'' Physaria acutifolia''—Sharpleaf twinpod *''

Physaria alpestris ''Physaria'' is a genus of flowering plants in the family Brassicaceae. Many species are known generally as twinpods, bladderpods, or lesquerella. They are native to the Americas, with many species endemic to western North America. They are dense ...

''—Washington twinpod *'' Physaria alpina''—Avery Peak twinpod *''

Physaria arctica ''Physaria arctica'' is a perennial flowering herb in the family Brassicaceae, known by the common name arctic bladderpod. Description Plants are 6–12 cm high with a short taproot and woody stem-base. Basal leaves, 2–6 cm and ar ...

''—Arctic bladderpod *''

Physaria argyraea ''Physaria'' is a genus of flowering plants in the family Brassicaceae. Many species are known generally as twinpods, bladderpods, or lesquerella. They are native to the Americas, with many species endemic to western North America. They are dense ...

''—Silver bladderpod *'' Physaria bellii''—Front Range twinpod *''

Physaria brassicoides ''Physaria'' is a genus of flowering plants in the family Brassicaceae. Many species are known generally as twinpods, bladderpods, or lesquerella. They are native to the Americas, with many species endemic to western North America. They are dense ...

''—Double twinpod *''

Physaria chambersii ''Physaria chambersii'' is a species of flowering plant in the family Brassicaceae known by the common name Chambers' twinpod. It is native to the southwestern United States, where it grows in desert woodland and plateau habitat. It is a perennia ...

''—Chambers' twinpod *''

Physaria condensata ''Physaria'' is a genus of flowering plants in the family Brassicaceae. Many species are known generally as twinpods, bladderpods, or lesquerella. They are native to the Americas, with many species endemic to western North America. They are dense ...

''—Tufted twinpod *''

Physaria congesta ''Physaria congesta''''Lesquerella congesta''.
ITIS.

'' —Dudley Bluffs bladderpod *'' Physaria didymocarpa''—Common twinpod *''

''—Fendler's bladderpod *''

Physaria filiformis ''Physaria filiformis'' ( syn. ''Lesquerella filiformis'') is a rare species of flowering plant in the family Brassicaceae known by the common names Missouri bladderpod and limestone glade bladderpod. It is native to Missouri and Arkansas in the ...

''—Missouri bladderpod *'' Physaria floribunda''—Pointtip twinpod *''

Physaria fremontii ''Physaria fremontii''''Physaria fremontii''.
Flora of North America. ...

''—Fremont's bladderpod *''

Physaria geyeri ''Physaria'' is a genus of flowering plants in the family Brassicaceae. Many species are known generally as twinpods, bladderpods, or lesquerella. They are native to the Americas, with many species endemic to western North America. They are dense ...

''—Geyer's twinpod *''

Physaria globosa ''Physaria globosa'' is a rare flowering plant in the mustard family commonly known as globe bladderpod, Short's bladderpod, and Lesquereux's mustard. It is endemic to the United States, where it is limited to Indiana, Kentucky, and Tennessee. It ...

''—Globe bladderpod *''

Physaria gordonii ''Physaria gordonii'', commonly known as Gordon's bladderpod, is a species of plant in the family Brassicaceae distributed throughout the Southwestern United States and Northern Mexico. It is a winter annual wildflower, maturing between April an ...

''—Gordon's bladderpod *''

Physaria grahamii ''Physaria'' is a genus of flowering plants in the family Brassicaceae. Many species are known generally as twinpods, bladderpods, or lesquerella. They are native to the Americas, with many species endemic to western North America. They are dense ...

''—Graham's twinpod *''

Physaria hemiphysaria ''Physaria hemiphysaria'' (formerly ''Lesquerella hemiphysaria'') is a species of flowering plant in the mustard family known by the common names Intermountain bladderpod and skyline bladderpod. It is endemic to Utah in the United States, where i ...

''—Intermountain bladderpod *''

Physaria integrifolia ''Physaria'' is a genus of flowering plants in the family Brassicaceae. Many species are known generally as twinpods, bladderpods, or lesquerella. They are native to the Americas, with many species endemic to western North America. They are dense ...

''—Bladderpod *''

Physaria kingii ''Physaria kingii'' is a species of flowering plant in the family Brassicaceae known by the common name King bladderpod. It is native to western North America from Utah to Baja California, where it grows in dry and rocky habitat, such as deserts ...

''—King bladderpod *''

Physaria lepidota ''Physaria lepidota'', the Kane County twinpod, is a plant species endemic to Utah. It is known only from Kane, Washington, and Garfield Counties in the southern part of the state. It grows on rocky slopes and outcrops, and sometimes in disturb ...

''—Kane County twinpod *''

Physaria ludoviciana ''Physaria ludoviciana'' is a species of flowering plant in the mustard family Brassicaceae, with the common names of bladder pod, silver bladderpod, louisiana bladderpod, and foothill bladderpod. It used to be ''Lesquerella ludoviciana'' which i ...

''—Foothill Bladderpod. *'' Physaria navajoensis ''—Navajo twinpod *'' Physaria obcordata''—Dudley Bluffs twinpod (threatened) *'' Physaria occidentalis''—Western bladderpod *'' Physaria okanensis''—O'Kane's bladderpod *''

Physaria oregona ''Physaria'' is a genus of flowering plants in the family Brassicaceae. Many species are known generally as twinpods, bladderpods, or lesquerella. They are native to the Americas, with many species endemic to western North America. They are dense ...

''—Oregon twinpod *''

Physaria pallida ''Physaria pallida'' ( syn. ''Lesquerella pallida'') is a rare species of flowering plant in the mustard family known by the common name white bladderpod. It is endemic to Texas in the United States, where it is known only from San Augustine Cou ...

''—White bladderpod *'' Physaria parviflora''—Piceance bladderpod *'' Physaria parvula''—Pygmy bladderpod *'' Physaria pruinosa''—Pagosa bladderpod *'' Physaria purpurea''—Rose bladderpod *'' Physaria reediana''—Alpine bladderpod *'' Physaria repanda''—Indian Canyon twinpod *'' Physaria saximontana''—Fremont County twinpod *'' Physaria tenella''—Moapa bladderpod *'' Physaria thamnophila''—Zapata bladderpod *'' Physaria tumulosa''—Kodachrome bladderpod *'' Physaria vitulifera''—Roundtip twinpod

References

External links

Jepson Manual Treatment: ''Physaria''USDA Plants ProfileCONPS: ''Physaria'' of Colorado
Brassicaceae genera Flora of North America Taxa named by Asa Gray {{Brassicales-stub