Rorippa Scop.

Basal leaves lobed, stem leaves may be simple Rorippa

Fruit 25–50 mm long

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Seeds brown, smooth. Fruit 25–40 mm long, the lowest near the base of the stem; style c. 1 mm long. Petals 4–15 mm long. Lower leaves pinnatisect. Widespread Rorippa laciniata

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Seeds black, rugose, reticulate. Fruits up to 50 mm long; style c. 3 mm long. Petals 7–9 mm long. Lower leaves pinnatisect. Higher Blue Mts, e.g. Jenolan Caves. Open forests Rorippa dictyosperma