Calystegia soldanella (L.) R.Br.
Convolvulus soldanella L. Sp. Pl. 1753, 159.
Rhizome creeping, branching; stems spreading, branching, up to 5 dm. long, stout, us. nearly glab.; plant forming large patches or low mounds up to ± 2 m. diam. Petioles up to 8 cm. long, rather stout; lamina (1)-2-5 cm. diam., reniform, subfleshy, glossy; sinus broad, shallow. Peduncles solitary, 1-fld, up to 10 cm. long; bracts ovate-cordate, obtuse, hardly = subequal, broad-ovate, obtuse sepals. Corolla 25-40 mm. diam., white to pale pink or purplish. Ovary incompletely 2-loculed; capsule broad-ovoid, apiculate. Seeds dark brown.
DIST.: K., N., S., St., Ch. Coastal sands throughout, occ. on gravel; also on sandy shores of Lake Taupo and other inland lakes.
FL. 10-3. FT. 12-4. A polymorphic sp. widespread in coastal regions.