Kermadec Islands, North and South Islands: Abundant in lowland situations as far south as Canterbury, apparently local in Otago. Pohue; Panahe; Bindweed. November–March.
Widely dispersed in most temperate countries, and everywhere highly variable.
2. C. tuguriorum, R. Br. ex Hook. f. Fl. Nov. Zel. i. 183, t. 47.—Stems slender, prostrate or climbing, often clothing shrubs or trees to a considerable height, glabrous or puberulous. Leaves ½–1½ in. long, broadly ovate-cordate or deltoid, acute or obtusely acuminate, entire or sinuate or angled, sinus at the base broad and shallow, glabrous, membranous. Peduncles usually longer than the leaves, terete or margined; bracts ovate-cordate or orbicular, apiculate, equalling the calyx and enclosing it. Sepals subequal, broadly ovate. Corolla large, 1–2 in. diam., white. Ovary incompletely 2-celled. Capsule ⅓ in. long, broadly ovoid, apiculate. Seeds yellowish-red.—Convolvulus tuguriorum, Forst. Prodr. n. 74; Hook. f. Handb. N.Z. Fl. 198. C. truncatella, Col. in Trans. N.Z. Inst. xxi. (1889) 95.
North and South Islands, Chatham Islands: Abundant from the Three Kings Islands and the North Cape to Foveaux Strait. December–February.
According to Sir J. D. Hooker, this is also found in Valdivia and Chiloe, and Mr. Hemsley (Bot. "Challenger" Exped.) has recorded it from the Island of Masafuera.
3. C. Soldanella, R. Br. Prodr. 483.—Rhizome long, creeping underground. Stems rather stout, 6–18 in. long, rarely more, prostrate and trailing, not twining, glabrous or puberulous. Leaves on petioles 1–3 in. long; blade ½–2 in. diam., usually broader than long, reniform or broadly rounded-cordate, obtuse or apiculate, entire or sinuate, thick and fleshy, sinus at the base broad and shallow. Peduncles solitary, 1-flowered, as long or longer than the leaves; bracts ovate-cordate, obtuse, rather shorter than the calyx. Sepals subequal, broadly ovate, obtuse. Corolla large, 1–1½ in. diam., pink or purplish. Ovary incompletely 2-celled. Capsule large, broadly ovoid, apiculate. Seeds blackish-brown.—A. Rich. Fl. Nouv. Zel. 200; A. Cunn. Precur. n. 395; Raoul, Choix, 44; Hook. f. Fl. Nov. Zel. i. 183. Convolvulus Soldanella, Linn. Sp. Plant. 159; Hook. f. Handb. N.Z. Fl. 198.
Kermadec Islands, North and South Islands, Stewart Island, Chatham Islands: Not uncommon on sandy shores throughout; inland on sandy beaches at Lake Taupo, &c. November–March.
Easily distinguished by the short uniformly prostrate stems, fleshy reniform leaves, and large black seeds. It is a common plant on maritime sands on almost all temperate shores.
