Browse Plants by Type: 4 petals
Gayophytum diffusum
spreading groundsmoke
Gentiana affinis
trapper's gentian
Gentiana calycosa
explorer's gentian
Gentiana sceptrum
king's scepter gentian
Gentiana setigera
Mendocino gentian
Gentianella amarella
northern gentian
Gentianopsis simplex
one-flowered gentian
Idahoa scapigera
scale pod
Lepidium campestre
field peppergrass
Lesquerella douglasii
Douglas's bladderpod
Lesquerella occidentalis
western lesquerella
Lunaria annua
honesty
Oenothera biennis
common evening primrose
Oenothera caespitosa
stemless evening primrose
Oenothera pallida
pale-stemed evening primrose
Oenothera villosa
hairy evening primrose
Phoenicaulis cheiranthoides
dagger pod
Plantago lanceolata
English plantain
Plantago major
broadleaf plantain
Plantago maritima var. juncoides
seaside plantain