Creeping Yellow Fieldcress, Yellow Fieldcress

Rorippa sylvestris (L.) Bess.

Brassicaceae (Mustard Family)

▲ rosettes from creeping roots

▲mature flowering plant

▲▼ flowers and fruit

▲ flowers

▲creeping roots with emerging shoots

▲ large colony in flower

Creeping Yellowcress, Yellow Fieldcress: 

·         creeping perennial very similar to spreading yellowcress except:

o   leaves more deeply divided, with teeth on each lobe

o   siliques more slender (not as elliptical) and not as curved

o   individual stems more upright (not as sprawling as above), but grow about same height

o   found more in eastern part of Midwest, while spreading yellowcress more in western half

·         both grow in Missouri;  creeping yellowcress is becoming a common nursery weed