Rorippa stylosa (DC.) Allan
Cardamine stylosa DC. Syst. 2, 1821, 248.
Arabis gigantea Hook. f. Ic. Pl. 1840, t. 259.
C. divaricata Hook. f. Fl. N.Z. 1, 1852, 13.
Nasturtium stylosum (DC.) Schulz in Engl. Bot. Jb. 32, 1903, 596.
Type locality: Bay of Islands. Type: K, R. Cunningham, 1834.
Glab. perennial herb up to 1 m. or more tall, with long taproot; stock c. 1 cm. diam.; stems up to 1 cm. diam., erect to spreading, branching at a wide angle. Lvs up to c. 15 cm. long, thin, oblong to lanceolate in outline, subacute to acuminate, cuneately narrowed into amplexicaul base; coarsely and irregularly serrate (rarely subentire) to lyrately pinnatifid. Racemes simple or sparingly branched, up to c. 5 dm. long; pedicels sub- patent, c. 5 mm. long. Sepals ovate-oblong, ± 3 mm. long; petals white, linear-spathulate, ± 3·5 mm. long. Siliques 3 × 1-1·5 cm., spreading; styles stout, c. 2 mm. long. Seeds c. 1 × 0.75 mm., reticulate-papillose, reddish brown.
DIST.: K., N., S. In open ground from lat. 35° to 41° 30'. Local in its occurrences.