1. Family: Campanulaceae Juss.
    1. Genus: Lobelia Plum. ex L.
      1. Lobelia thermalis Thunb.

        This species is accepted, and its native range is S. Tropical & S. Africa.

    [FZ]

    Lobeliaceae, M. Thulin. Flora Zambesiaca 7:1. 1983

    Habit
    Perennial prostrate herb.
    Stem
    Stems radiating from a taproot, 4–50 cm. long, rooting at the nodes, ribbed or sulcate, densely hirsute to almost glabrous.
    Leaves
    Leaves usually numerous and rather densely set, up to 7–17 x 3–8 mm., narrowly to broadly elliptic, acute at the apex, sessile or narrowing at the base into a short petiole, glabrous, ciliate at the base, or occasionally hairy all over; margin incrassate, dentate–serrate.
    Flowers
    Flowers solitary, irregularly scattered in leaf–axils, subsessile or on pedicels up to 5 mm. long, pubescent; bracteoles linear, 0·8–1·6 mm. long.
    Hypanthium
    Hypanthium narrowly obconical, indistinctly nerved, finely pubescent to hirsute.
    Calyx
    Calyx–lobes narrowly triangular, erect, 4–5 mm. long, shortly united at the base, entire, ciliate or ± hairy.
    Corolla
    Corolla 14–18 mm. long, blue or pale blue with yellow markings, sometimes white, with two crests in the mouth of the tube, split to the base or almost so on the back, papillose on the inside of the tube, short pubescent on the outside usually with longer hairs on the midvein of the lobes.
    Stamens
    Stamens 10–14 mm. long, almost free from the corolla; filaments connate for most of their length, pubescent at the base; anther–tube 2·9–3·2 mm. long, all anthers penicillate at the tip, otherwise glabrous or almost so.
    Fruits
    Capsule cylindrical–obconical up to 17 mm. long, ± hairy, indistinctly nerved; pericarp rather tough in texture, finally tending to split longitudinally into 5–10, linear segments; apical valves 4, narrow, 2–3 mm. long.
    Seeds
    Seeds broadly elliptic to suborbicular in outline, somewhat compressed, 0·35–0·4 mm. long, finely striate, brown.

    Distribution

    Native to:

    Angola, Botswana, Cape Provinces, Free State, Lesotho, Namibia, Northern Provinces, Zimbabwe

    Lobelia thermalis Thunb. appears in other Kew resources:

    First published in Prodr. Pl. Cap.: 40 (1794)

    Accepted by

    • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
    • Lammers, T.G. (2007). World checklist and bibliography of Campanulaceae: 1-675. The Board of Trustees of the Royal Botanic Gardens, Kew.

    Sources

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

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. 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 2019. 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