Common name(s): Spreading rockcress
Tag: four petals
Mummenhoffia alliacea
Common name(s): Roadside pennycress
Galium trifolium
Common name(s): Three-flowered bedstraw
Galium circaezans
Common name(s): Licorice bedstraw
Oenothera fruticosa
Common name(s): Narrow-leaf sundrops
Galium obtusum
Common name(s): Bluntleaf bedstraw
Maianthemum canadense
Common name(s): Canada mayflower
Arabidopsis thaliana
Common name(s): Mouse-ear cress
Cardamine pensylvanica
Common name(s): Pennsylvania bittercress
Cardamine angustata
Common name(s): Slender toothwort