Plumbago amplexicaulis Oliv.

This species is accepted, and its native range is W. & SW. Tanzania to Zambia.

[FZ]

Plumbaginaceae, A. R. Vickery. Flora Zambesiaca 7:1. 1983

Morphology General Habit
Erect herb or subshrub, much branched, to 90 cm. high.
Morphology Stem
Stems glabrous, striate.
Morphology Leaves
Leaves sessile or with short winged petioles, amplexicaul with large auricles. Lower leaf–blades obovate or oblong, 5–24 cm. long, 2–9 cm. wide, upper smaller, often narrowly oblong or lanceolate.
Morphology Reproductive morphology Inflorescences Peduncles
Peduncles bearing dense short–stalked glands.
Morphology Reproductive morphology Inflorescences Bracts
Bracts ovate–lanceolate or lanceolate, glandular.
Morphology Reproductive morphology Flowers Calyx
Calyx 8–10 mm. long, weakly to prominently ribbed, bearing numerous stalked glands, stalks often curved; calyx teeth up to 1–5 mm. long.
Morphology Reproductive morphology Flowers Corolla
Corolla–tube mauve or reddish, 15–27 mm. long; corolla lobes bright deep blue, drying bluish–purple, 8–10 mm. long, 6 mm. broad, acute with shortly excurrent central nerve.

[FTEA]

Plumbaginaceae, C. M. Wilmot-Dear. Flora of Tropical East Africa. 1976

Morphology General Habit
Erect herb or subshrub, laxly branched, 45–90 cm. high; roots with terminal tuberous swellings; sap of stems and roots, but not tubers, yellow.
Morphology Stem
Stems glabrous, often reddish, bearing prominent longitudinal ridges, 1–2 per mm.
Morphology Leaves
Leaves sessile or with short (10–20 mm.) winged petiole, amplexicaul, auriculate, auricles often large, glabrous, chartaceous; lower leaf-blades obovate or oblong, 5–24 cm. long, 2–11 cm. wide, upper often narrowly oblong or lanceolate, smaller, 4–11 cm. long, 1–2.5 cm. wide.
Morphology Reproductive morphology Inflorescences
Peduncles bearing abundant short hairs and dense stalked glands, often reddish; gland stalks up to 0.5 mm. long; pedicels 1 mm. long; bracts ovate-lanceolate or lanceolate, outer bract 2.5–8 mm. long, 1–2 mm. wide, acute, inner pair minute, less than 1 mm. long, usually glandular on under surface, both surfaces pilose, margins ciliate.
Morphology Reproductive morphology Flowers Calyx
Calyx 8–10 mm. long, 1.5–2 mm. wide, seldom prominently ribbed, bearing sparse or abundant stalked glands more numerous towards the apex; stalks very thin, not rigid, often curved, 0.5–1 mm. long; calyx-teeth up to 1.5 mm. long.
Morphology Reproductive morphology Flowers Corolla
Corolla-tube mauve or reddish, 15–27 mm. long, 1.7–2 times length of calyx; lobes bright deep blue, obovate to spathulate, 8–10 mm. long, 6 mm. broad, acute, with shortly excurrent central nerve.
Figures
Fig. 4, p. 10.
Habitat
Deciduous woodland and grassland, often on sandy or red soil; 900–2000 m.
Distribution
T4 T7

Native to:

Mozambique, Tanzania, Zambia, Zaïre

Plumbago amplexicaulis Oliv. appears in other Kew resources:

Date Reference Identified As Barcode Type Status Has image?
Jan 1, 1975 Cameron [s.n.] K000225835 holotype Yes
Jan 1, 1975 Cameron [s.n.] K000225836 holotype Yes
Bidgood, S. [5352], Tanzania K000190582 No

First published in J. Linn. Soc., Bot. 15: 96 (1876)

Accepted by

  • Friis, I. & al. (2012). The genus Plumbago (Plumbaginaceae) in Ethiopia and Eritrea Webbia; Raccolta de Scritti Botanici 67: 157-177.
  • Launert, E. (ed.) (1983). Flora Zambesiaca 7(1): 1-394. Royal Botanic Gardens, Kew.
  • Ntore, S. (2015). Flore d'Afrique Centrale (Zaire-rwanda-Burundi), Plumbaginaceae: 1-14. Jardin Botanique National de Belgique.
  • Wilmot-Dear, C.M. (1976). Flora of Tropical East Africa, Plumbaginaceae: 1-12.

Literature

Kew Backbone Distributions

  • Friis, I. & al. (2012). The genus Plumbago (Plumbaginaceae) in Ethiopia and Eritrea Webbia; Raccolta de Scritti Botanici 67: 157-177.
  • Ntore, S. (2015). Flore d'Afrique Centrale (Zaire-rwanda-Burundi), Plumbaginaceae: 1-14. Jardin Botanique National de Belgique.

Flora of Tropical East Africa

  • Engl., Die Pflanzenwelt Ost-Afrikas und der Nachbargebiete, Theile C: 304 (1895).
  • F. White, Forest Flora of Northern Rhodesia p. 318 (1962).
  • J.P.M. Brenan, Check-lists of the Forest Trees and Shrubs of the British Empire no. 5, part II, Tanganyika Territory p. 452 (1949).
  • Oliv. in Journal of the Linnean Society of London, Botany 15: 96 (1876)
  • Oliv., Flora of Tropical Africa 3: 487 (1877).

  • 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

  • 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 2022. 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 2022. 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