Rubiaceae
Vangueria

Vangueria bicolor K.Schum.

First published in Bot. Jahrb. Syst. 34: 332 (1904)
This species is accepted
The native range of this species is Tanzania (Lushoto). It is a tree and grows primarily in the seasonally dry tropical biome.

Descriptions

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/34879/9889704

Conservation
VU - vulnerable
[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: threatened. Confidence: confident
[AERP]

Rubiaceae, B. Verdcourt. Flora of Tropical East Africa. 1976

Morphology General Habit
Small divaricately branched tree to 8 m.
Morphology General Indumentum
Youngest shoots densely pale ferruginous hairy with rather long hairs 1 –1.5 mm. long, older parts dull purplish grey, slightly striate, glabrous.
Morphology Leaves
Leaf-blades oblong-elliptic, 4–11 cm. long, 2–4.5 cm. wide, subacute to shortly acuminate at the apex, rounded to rounded-cuneate at the base, distinctly discolorous, fairly densely ferruginous hairy above but not velvety, nor obscuring the surface, densely softly velvety tomentose beneath with matted yellowish grey hairs; lateral nerves slightly impressed above in dry state; petioles 5–7 mm. long, hairy like the stems; stipules with base 0.5–1.5 mm. long and filiform part 6–7.5 mm. long, mostly obscured by long bristly hairs.
Morphology Reproductive morphology Inflorescences
Inflorescences ± 2 cm. long, densely ferruginous hairy; peduncle thick, bracteolate, up to 7 mm. long; pedicels 2 mm. long; bracts ovate, 3 × 2 mm.
Morphology Reproductive morphology Flowers Calyx
Calyx-tube ovoid, 1 mm. long; lobes linear-lanceolate, 6–8 mm. long, 1.5 mm. wide.
Morphology General Buds
Buds shortly apiculate, glabrous.
Morphology Reproductive morphology Flowers Corolla
Corolla green, 1 cm. long.
Morphology Reproductive morphology Fruits
Unripe fruits subglobose, 1.2 cm. long and wide.
Habitat
Rain-forest; 800 m.
Distribution
T3 known only from the type
[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

  • Herbarium Catalogue Specimens

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    • 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 2025. 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 2025. 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