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This species is accepted, and its native range is Tanzania (Nguru Mountains).

[FTEA]

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

Habit
Sparingly branched perennial herb to 1.5 m. tall; stems finely rusty-pubescent when young, becoming subglabrescent below.
Leaves
Leaves spirally arranged; petiole (0.3–)0.8–6.5 cm. long, slender, finely pubescent; lamina lanceolate-elliptic to elliptic, 3.5–17.3 cm. long, 1.4–5.4 cm. broad, the apex gradually acuminate, acute, the base cuneate, finely pubescent above and beneath; lateral veins 9–14 pairs; margin serrate, the lowest teeth linear where the lamina merges into the petiole and usually ± 1–1.5 mm. long.
Inflorescences
Inflorescence a 5–9(–many)-flowered axillary subumbellate raceme; flowers rose-pink.
Peduncles
Peduncle (18–)22–40 mm. long, slender, finely pubescent, ± erect.
Bracts
Bracts linear-subulate, 2–3 mm. long, acute.
Pedicel
Pedicels 11–16 mm. long, finely pubescent.
Calyx
Lower sepal shallowly and obliquely navicular, 5–8 mm. long, 2.5–3 mm. deep, abruptly constricted into a 13–32 mm. long curved filiform spur, finely pubescent throughout. Lateral sepals 2, narrowly triangular-lanceolate, 2–4 mm. long, acute, finely pubescent.
Corolla
Dorsal petal obcordate, 6–9 mm. long, 8–10 mm. broad, dorsally with a narrow crest, pubescent in the centre and along the crest. Lateral united petals 10–13 mm. long, with petals subequal in size and shape; upper petal narrow-obcordate or oval-oblanceolate, 9–10 mm. long, 4–5 mm. broad, entire or emarginate; lower petal narrowly obcordate or ± wedge-shaped, 8–11 mm. long, 4–5.5 mm. broad, entire or emarginate.
Ovary
Ovary glabrous.
Fruits
Fruit narrowly fusiform, ± 8 mm. long, 1.5 mm. broad, glabrous.

Native to:

Tanzania

Impatiens messumbaensis G.M.Schulze appears in other Kew resources:

First published in Bot. Jahrb. Syst. 73: 464 (1944)

Accepted by

  • Grey-Wilson, C. (1982). Flora of Tropical East Africa, Balsaminaceae: 1-76.

Literature

Kew Backbone Distributions

  • Grey-Wilson, C. (1982). Flora of Tropical East Africa, Balsaminaceae: 1-76.

Flora of Tropical East Africa

  • Grey-Wilson in Impat. Afr.: 87, fig. 28 (1980).
  • G.M. Schulze in A. Engler, Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie 73: 464 (1944).

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