Creeping Yellowcress - Rorippa sylvestris
Yellow Fieldcress, Keek
Stems ascending, branched, 15–50 cm. Leaves all cauline, petiolate, 2–15 cm long; the blade oblong, deeply pinnately lobed and dentate, the apical lobe similar to the lateral. Vestiture of sparse hairs on the lower stem otherwise glabrous. Petals yellow, 3–5 mm long. Fruit a linear silicle, 9–16 × up to 1 mm, glabrous; style 0.8–1.5 mm long; pedicels spreading, 7–11 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX
The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus rufocinctus
(Thorp et al. 1983).