Cressonii mining bee
Andrena cressonii
insectView on iNaturalist
Small metallic green mining bee; specialist on native buckwheat. Early spring Bay Area pollinator; solitary ground nester crucial for wildflower reproduction.
Plants that support Cressonii mining bee
4 plants
Annual Agoseris
Agoseris heterophylla
annual
Spring foraging resource for early-emerging native bee
Bay Area native
Chilean Sweet-cicely
Osmorhiza berteroi
perennial herb
Spring foraging on early-blooming umbelifer flowers
Bay Area native
Deerbrush
Ceanothus integerrimus
perennial herb
Spring pollen collection from flower clusters
Bay Area nativeKeystone species
Naked Buckwheat
Eriogonum nudum var. auriculatum
perennial herb
Spring ephemeral specialist; critical early pollen source
Bay Area native