Impatiens sodenii Engl. & Warb. ex Engl.

Robust erect suffruticose perennial to 3 m. tall; stems thick and succulent, simple to moderately branched, glabrous, becoming woody below.. Leaves in dense whorls of 6–10(–12), sessile or subsessile, rather congested towards stem tops; lamina oblanceolate, rarely oblong, (3–)5–18 cm. long, 1.8–4.8(–5.5) cm. broad, the apex obtuse to subacute, glabrous; lateral veins 7–10 pairs; margin shallowly serrate or serrulate with several fine, 1–5 mm. long fimbriae towards the base.. Inflorescence 1(–2)-flowered, the flowers pale pink or white.. Peduncle 2.5–6(–7) cm. long.. Bracts 1–3, narrow-ovate or linear-lanceolate, 2.5–5 mm. long, acute or acuminate.. Pedicels 2.1–4.5 cm. long.. Lateral sepals ovate to elliptic-lanceolate, 6–8 mm. long, shortly acuminate.. Lower sepal narrowly and obliquely navicular, 14–18 mm. long, abruptly constricted into a (5.5–)6–9.8 cm. long filiform spur, slightly thickened at the tip.. Dorsal petal broadly-obovate or suborbicular, 18–23 mm. long, 25–30 mm. broad, emarginate, dorsally with a narrow crest.. Lateral united petals 30–37 mm. long; upper petal oblong or suborbicular, 21–28 mm. long, 17–27 mm. broad, emarginate, the lower petal oblong, 20–33 mm. long, 14–21 mm. broad, usually somewhat emarginate distally along the inner margin.. Ovary glabrous.. Fruit fusiform, ± 24 mm. long, 8 mm. broad, glabrous.. Fig. 2/11, p. 4.

Recorded growing in disturbed woodland, in loam, in rocky areas, and in shallow clay loam on gully floor in shady areas in weedy moist eucalypt forest; garden escape or from spread from garden refuse dumping.

Can be grown by cuttings or seedlings.