Rotheca violacea (Gürke) Verdc.

First published in Kew Bull. 55: 154 (2000)
This species is accepted
The native range of this species is Tropical & S. Africa. It is a climber and grows primarily in the seasonally dry tropical biome.

Descriptions

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/97241421/97241446

Conservation
LC - least concern
[IUCN]

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: not threatened. Confidence: confident
[AERP]

Verbenaceae, H. Huber, F. N. Hepper & R. D. Meikle. Flora of West Tropical Africa 2. 1963

Morphology General Habit
A straggling or climbing shrub
Morphology Leaves
Almost glabrous leaves
Morphology Reproductive morphology Flowers
Conspicuous violet, violet white or greenish flowers up to 1 in. across
Morphology Reproductive morphology Inflorescences
Inflorescence a terminal panicle.
[FWTA]

Verbenaceae, B. Verdcourt. Flora of Tropical East Africa. 1992

Morphology General Habit
Liane to 5 m., the old stems sometimes leafless, grey-green or darker, 4-angled or finely ridged, with short pale ferruginous pubescence or glabrescent; lateral leafy shoots with ± condensed internodes at the base.
Morphology Leaves
Leaves drying pale or dark, elliptic, 3–13.5 cm. long, 1.5–7(–10) cm. wide, acuminate at the apex, narrowly cuneate at the base into distinct petiole or very attenuate at base and true petiole short, thin, entire or slightly to coarsely serrate, the teeth not spreading, apiculate, ± glabrous to sparsely pubescent above and on venation beneath; petiole 0.2–2.5 cm. long.
Morphology Reproductive morphology Inflorescences
Inflorescences leafy, few–many-flowered, terminal on main and lateral shoots, 8–20 cm. long, the cymes axillary in sessile ovate acuminate or cordate leaf-like bracts 5 cm. long, 3 cm. wide; upper bracts lanceolate 5–10 mm. long, 1–2 mm. wide; individual cymes 1–2-flowered; axes finely pubescent; peduncle up to 2.5 cm. long; calyx pubescent; tube cupular, 4–6 mm. long; lobes broadly rounded to ovate, up to 5 mm. long and wide, densely gland-dotted within.
Morphology Reproductive morphology Flowers Corolla
Corolla violet, violet and white or greenish or, in Ugandan subsp., cream tinged green with posterior petal pale mauve; tube 6–10 mm. long; lobes 0.8–1.6 cm. long, 5–5.5 mm. wide.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens exserted 1–3.5 cm.
Morphology Reproductive morphology Fruits
Fruit red, depressed globose, 8 mm. tall, 1.1 cm. wide, 3–4-seeded.
Distribution
Guineé to Cameroon and Zaire T8
[FTEA]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0
  • Flora of Tropical East Africa

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

    • IUCN Red List of Threatened Species
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0
  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0