the basal rosette is obscured by the fireweed in the foreground
Its flowers were being visited by checkered white butterflies (entered as this observation).
Bunches of small white flowers, four petals per flower.
The Brassicales are an order of flowering plants, belonging to the eurosids II group of dicotyledons under the APG II system. One character common to many members of the order is the production of glucosinolate (mustard oil) compounds. Most systems of classification have included this order, although sometimes under the name Capparales (the name chosen depending on which is thought to have priority).