Impatiens hochstetteri Warb.

Erect to procumbent annual or perennial; stems 20–50(–75) cm. long, often rooting at the lower nodes, glabrous.. Leaves spirally arranged, generally with a slender petiole (1–)1.5–5(–6.3) cm. long; lamina ovate to ovate-lanceolate, to broadly elliptical or elliptic-oblanceolate, 2.8–9(–10) cm. long, 1–4(–5.2) cm. broad, often membranous, the apex subacute, acuminate or cuspidate, the tip 4–15 mm. long, 2–5 mm. broad, the base cuneate, sparsely pubescent or glabrous on both surfaces; lateral veins 4–9 pairs; margin crenate or crenate-dentate or ± crenulate, usually with a few 1–2 mm. long fimbriae towards the base.. Flowers axillary, solitary or in fascicles of 2–3(–4), sometimes on a reduced ± 1–3 mm. long peduncle, whitish, pale pink or pale mauve, often with a small white or pale yellow dot towards the base of the lateral united petals.. Bracts subulate, 1–2 mm. long, inconspicuous.. Pedicels 0.8–4.2 cm. long, slender, glabrous.. Lateral sepals ovate-lanceolate, 1.5–4 mm. long, acute, glabrous.. Lower sepal shallowly navicular, 5–8 mm. long, abruptly constricted into a (10–) 16–34 mm. long curved filiform spur, often slightly thickened at the tip.. Dorsal petal 6–7 mm. long, 6–7 mm. broad (when flattened), shallowly cucullate, dorsally with a narrow crest.. Lateral united petals 8–19 mm. long; upper petal narrowly oblong to obovate, 2–6 mm. long, 1.5–5 mm. broad, sometimes ± obsolete, entire or emarginate; lower petal broadly elliptic, oblong or suborbicular, 4.5–11 (–12) mm. long, 6–8 mm. broad, distally and along the inner margin prolonged into a 3–8 × 1–3 mm. ligulate appendage, obtuse or subacute at the tip.. Ovary glabrous.. Fruit fusiform, 11–13 mm. long, 3–4 mm. broad, glabrous.