Physaria genus --- mustard subfamily 2 -- genus E to Z

sharpleaf twinpod (Physaria acutifolia) -- in April -- Unaweep Canyon, Mesa County, CO       yellow & orange

sharpleaf twinpod (Physaria acutifolia) -- in April -- Arches National Park, UT     yellow & orange

alpine bladderpod (Physaria alpina) -- in June -- Beartooth Highway, Gallatin NF, southern Montana             yellow & orange   

Great Plains bladderpod (Physaria arenosa) -- in May -- Pawnee National Grassland, CO     yellow & orange

Front Range twinpod (Physaria bellii) -- in May -- Pineridge Natural Area, Fort Collins, CO         yellow & orange      

Front Range twinpod (Physaria bellii) -- in April -- Coyote Ridge, Fort Collins Natural Area      

Front Range twinpod (Physaria bellii) -- in June -- Sand Creek, WY               ​  yellow & orange  

                                                                                    stellate leaf hairs (40x magnification)

Front Range twinpod (Physaria bellii) -- in April -- LaPorte, CO   

Fendler's bladderpod (Physaria fendleri) -- in April -- Guadalupe Mountain National Park, TX    yellow & orange   

Fendler's bladderpod (Physaria fendleri) -- in May -- Picketwire Canyon, Comanche National Grassland, CO   ​ yellow & orange

​Fendler's bladderpod (Physaria fendleri) -- in April -- Dripping Springs Natural Area, NM        ​ yellow & orange

spreading bladderpod (Physaria gracilis) -- in April -- Alabaster Caverns State Park, nothern Oklahoma    yellow & orange      

foothill bladderpod (Physaria ludoviciana) -- in June -- Soapstone Prairie Natural Area, Fort Collins, CO    yellow & orange   

foothill bladerpod (Physaria ludoviciana) -- in May -- Pawnee Buttes, Pawnee National Grassland, CO   yellow & orange 

mountain bladderpod (Physaria montana) -- in April -- Lory State Park, CO       yellow & orange      

mountain bladderpod (Physaria montana) -- in April --  Kimmons Trail, Lory State Park, CO           ​  yellow & orange  

                                                                                       stellate hairs on a leaf

​mountain bladderpod (Physaria montana) -- in April --  Kimmons Trail, Lory State Park, CO  

mountain bladderpod (Physaria montana) -- in May -- Mesa Trail, South Mesa Trailhead, Boulder County, CO        ​  yellow & orange  

Newberry's twinpod (Physaria newberryi) -- in April -- Cibola National Forest near Corona, southern New Mexico    yellow & orange    

roundleaf bladderpod (Physaria ovalifolia ssp. ovalifolia) -- in April -- Comanche National Grassland, CO     yellow & orange

rose bladderpod (Physaria purpurea) -- in March -- Salt River Canyon, Tonto National Forest, AZ   white & cream    

rose bladderpod (Physaria purpurea) -- in April -- Dripping Springs Natural Area, NM     

roundtip twinpod (Physaria vitulifera) -- in March -- South Valley Park, Jefferson County Open Space, CO    yellow & orange  

roundtip twinpod (Physaria vitulifera) -- in March -- Eldorado Canyon State Park, CO