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This species is accepted, and its native range is Eritrea to N. Uganda.

[FTEA]

Balsaminaceae, C. Grey-Wilson. Flora of Tropical East Africa. 1993

Habit
Upright glabrous perennial to 2 m. tall, with a large swollen tuberous rootstock at or just below the soil surface.
Leaves
Leaves spirally arranged; petiole (0.5–)1–6(–9) cm. long, rather slender, sometimes with a few short-stipitate or almost sessile glands in the upper half and close to the lamina; lamina oblong or oblong-lanceolate to broadly ovate, 7.5–23 cm. long, 2.6–9.8 cm. broad, the apex subobtuse to acute, often shortly acuminate, the base shortly attenuate or cuneate; lateral veins (7–)8–12(–14) pairs; margin coarsely or finely crenate or ± serrate.
Inflorescences
Inflorescence a 3–7(–9)-flowered raceme, rarely subumbellate; flowers white, the lower lateral petals often veined or spotted pink or purple towards the base.
Peduncles
Peduncle 8.5–30 cm. long, upright.
Bracts
Bracts oblong to ovate, 6–11 mm. long, the apex obtuse or shortly acuminate.
Pedicel
Pedicels 15–36(–40) mm. long, rather slender, Lateral sepals 4, ovate or oblong, 6–10 mm. long, 4–7 mm. broad, shortly acuminate.
Calyx
Lower sepal shallowly and obliquely navicular or funnel-shaped, 12–25 mm. long at the mouth, 2–18 mm. deep, abruptly or ± gradually constricted into a 3–13 cm. long curved filiform spur, slightly swollen at the tip.
Corolla
Dorsal petal 17–22 mm. long, 10–14 mm. broad, cucullate, shallowly crested dorsally, the crest terminating in a short acute point. Lateral united petals 20–55 mm. long; upper petal very reduced, suborbicular or oblong-elliptic, 6–15 mm. long, 2–5 mm. broad; lower petal orbicular or transversely oblong, 18–50 mm. long, 16–46 mm. broad, ± with an emargination along the inner margin towards the top.
Ovary
Ovary glabrous.
Fruits
Fruit obcylindric, shortly beaked, 32–40 mm. long.
Seeds
Seeds ovoidal, glabrous, the surface of the testa consisting of an even covering of tiny cells.

[FZ]

Balsaminaceae, E. Launert. Flora Zambesiaca 2:1. 1963

Habit
A very tall much-branched shrubby perennial, up to 2·2 m. high or more; stems up to 3·8 cm. in diam., pale green flecked with brown, older ones hollow, usually glabrous.
Leaves
Leaves spirally arranged, petiolate; lamina (5·5) 7·5–12·5 (15) × (3·5) 5–7·5 (8·5) cm., elliptic to ovate or broadly elliptic, bright green above, greyish-green below, membranous, glabrous on both surfaces or very shortly hairy beneath when young, apex usually acute or rarely subobtuse and acuminate or cuspidate, margin crenulate-denticulate, base cuneate; secondary nerves 13–18 pairs; petiole (1) 2–5 (6·5) cm. long, usually glabrous.
Flowers
Flowers in very showy lax open racemes, white with reddish marks at the base of the lateral petals; peduncle 7–18 (25) cm. long, rather robust, glabrous or very sparsely hairy; bracts 6–9 mm. long, elliptic or ovate, apiculate, with rounded base, usually glabrous, persistent; pedicels up to 3·3 cm. long, usually glabrous, subsucculent.
Calyx
Lateral sepals 2, up to 10 × 4 mm., ovate-oblong, acute or often apiculate, glabrous or very shortly pilose; posterior sepal 2·25–2·8 cm. long, c. 1·5 cm. deep, obliquely-funnel-shaped, gradually tapering into the spur, distally acute, usually glabrous; spur 7–10 (13) cm. long, relatively slender, subconical or cylindric, with the end slightly thickened, usually incurved, sometimes recurved (when very young), rarely straight.
Corolla
Anterior petal 1·3–1·7 × 1·4–1·6 cm. (when flattened), broadly ovate to semi-circular, apically entire and acuminate, without dorsal crest; lateral united petals 3·5–4·5 cm. long, deeply 2-Iobed, the lobes very different in shape and size, glabrous; anterior lobe large, up to 3 × 3 cm. or even more, broadly oblique-obovate, distally usually retuse to emarginate; posterior lobe much smaller, c. 7·5 × 6 mm., obovate-oblong to obovate.
Ovary
Ovary glabrous.
Fruits
Capsule 2–2·5 (3) cm. long, fusiform, broader in the upper half, with the apex ± rostrate, glabrous.
Seeds
Seeds numerous, c. 3·5 × 1·8 mm., ovate-oblong in outline, with a wrinkled or papillose surface, reddish-brown.

Native to:

Eritrea, Ethiopia, Sudan, Uganda, Zaïre

Impatiens tinctoria A.Rich. appears in other Kew resources:

First published in Tent. Fl. Abyss. 1: 120 (1847)

Accepted by

  • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.
  • Edwards, S., Tadesse, M., Demissew, S. & Hedberg, I. (eds.) (2000). Flora of Ethiopia and Eritrea 2(1): 1-532. The National Herbarium, Addis Ababa University, Ethiopia & The Department of Systematic Botany, Upps.
  • Grey-Wilson, C. (1982). Flora of Tropical East Africa, Balsaminaceae: 1-76.

Literature

Kew Backbone Distributions

  • Darbyshire, I., Kordofani, M., Farag, I., Candiga, R. & Pickering, H. (eds.) (2015). The Plants of Sudan and South Sudan: 1-400. Kew publishing, Royal Botanic Gardens, Kew.

Flora of Tropical East Africa

  • Grey-Wilson, Impat. Afr.: 154 (1980).
  • Cufod., Enumeratio Plantarum Aethiopiae Spermatophyta (Supplement in Bull. Jard. Bot. Brux.) p. 497 (1958).
  • Gilg in A. Engler, Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 43: 125 (1909).
  • Hook. f. in Flora of Tropical Africa 1: 302 (1868).
  • A. Rich., Tent. Fl. Abyss. 1: 120 (1847).

Flora Zambesiaca
Flora Zambesiaca
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0