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This species is accepted, and its native range is W. Tropical Africa to Tanzania.
A specimen from Kew's Herbarium

[FWTA]

Lobeliaceae, E. Wimmer. Flora of West Tropical Africa 2. 1963

Morphology General Habit
Erect, subglabrous herb to 1 ft. high, often decumbent or somewhat trailing and rooting at the base
Morphology Reproductive morphology Flowers
Flowers blue, about 1/2 in. long
Ecology
In marshes.

[FTEA]

Lobeliaceae, Mats Thulin (University of Uppsala). Flora of Tropical East Africa. 1984

Morphology General Habit
Annual or short-lived perennial herb, decumbent, 10–50 cm. long.
Morphology Stem
Stems usually many, often rooting at lower nodes, triangular with narrowly winged edges, subglabrous to sparsely pubescent.
Morphology Leaves
Leaves up to 20–50 mm. long and 7–24 mm. wide, narrowly elliptic or lanceolate to ovate, gradually narrowing upwards on the stem, acute or obtuse at the apex, gradually or abruptly narrowing below into a petiole-like base, serrate or crenate, sparsely pubescent on both sides or subglabrous, ciliate at the base; venation prominent beneath.
Morphology Reproductive morphology Flowers
Flowers in lax leafy racemes; pedicels 10–35 mm. long, shorter than or equalling the bracts, glabrous, with minute bracteoles at the base.
Morphology Reproductive morphology Flowers Hypanthium
Hypanthium narrowly obonical, 8–10-nerved, glabrous.
Morphology Reproductive morphology Flowers Calyx
Calyx-lobes narrowly triangular to linear, ± spreading or reflexed, 3–6 mm. long, entire, ciliate.
Morphology Reproductive morphology Flowers Corolla
Corolla 6.5–10 mm. long, blue or rarely mauve or violet, split practically to the base on the back, shortly pubescent inside at the bottom of the tube.
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments, at least the 2 lower, somewhat pubescent below, connate at least in the upper half, attached to the corolla-tube at the very base.
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anther-tube 1.4–1.6 mm. long, mostly shortly pubescent on the back; 2 lower anthers each with a tuft of hairs and a hyaline appendage at the apex.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary subinferior.
Morphology Reproductive morphology Fruits
Capsule narrowly obconical, 8–10-nerved, with 2 valves ± 1 mm. long, inferior part of capsule 4–10 mm. long.
Morphology Reproductive morphology Seeds
Seeds ± broadly elliptic in outline, somewhat compressed, ± 0.5 mm. long, striate, brown.
Habitat
Forest floor, bamboo thicket, edges of streams, swamps and lakes, roadsides, cultivations; 1450–2700 m.
Distribution
T6 U2

[FWTA]

Lobeliaceae, E. Wimmer. Flora of West Tropical Africa 2. 1963

Morphology General Habit
Erect or decumbent-ascending herb to 1 ft. high
Morphology General Indumentum
Stems and leaves above slightly pilose or glabrescent
Morphology Reproductive morphology Flowers
Flowers white, bluish within with dull spots on the lower lip, 1/4 in. long.

Native to:

Burundi, Cameroon, Equatorial Guinea, Nigeria, Rwanda, Sierra Leone, Tanzania, Uganda, Zaïre

Lobelia rubescens De Wild. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Dec 1, 2008 Harvey, Y.B. [308], Cameroon K000580356
Dec 1, 2008 Cheek, M. [13545], Cameroon K000580354
Dec 1, 2008 Cheek, M. [13567], Cameroon K000580355
Mar 1, 2005 Tchiengue, B. [1968], Cameroon K000339341
Jan 1, 2001 Cheek, M. [9587], Cameroon K000027456
Jan 1, 2001 Cheek, M. [8894], Cameroon K000027450
Jun 1, 2000 Cheek, M. [8498], Cameroon K000338666
Jun 1, 2000 Etuge, M. [4574], Cameroon K000338668
Jun 1, 2000 Etuge, M. [3623], Cameroon K000338667
Treuss [747], Cameroon Lobelia kamerunensis K000228544 Unknown type material

First published in Rev. Zool. Bot. Africaines 8(Suppl. Bot.): 27 (1920)

Accepted by

  • Lammers, T.G. (2007). World checklist and bibliography of Campanulaceae: 1-675. The Board of Trustees of the Royal Botanic Gardens, Kew.

Literature

Flora of West Tropical Africa

  • E. Wimm. in Engl. Pflanzenr. 4, 276b Campanulac-Lobelioid.: 507. (1953)
  • in Rev. Zool. Bot. Aft. 8, Suppl. 27 (1920)

Flora of Tropical East Africa

  • De Wild. in Rev. Zool. Afr. 8, Suppl. Bot.: 27 (1920)
  • De Wild., Pl. Bequaert. 1: 295 (1922).
  • E. Wimmer in A. Engler, Das Pflanzenreich IV.276 b: 507 (1953)
  • E. Wimmer in A. Engler, Das Pflanzenreich IV.276 c: 862 (1968).
  • E. Wimmer in Flora of West Tropical Africa, ed. 2, 2: 313 (1963)

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

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/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