Bignoniaceae
Rhigozum

Rhigozum somalense Hallier f.

First published in Bot. Jahrb. Syst. 32: 127 (1903)
This species is accepted
The native range of this species is NE. Ethiopia to Yemen. It is a shrub and grows primarily in the desert or dry shrubland biome.

Descriptions

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Type
N1, “Dadab”, Ellenbeck 165 (B holo. destr., K iso).
Morphology General Habit
Shrub, up to 3 m tall, glabrous; branchlets with weakly spinescent tips
Morphology Leaves
Leaves solitary or 2–3 clustered on cushions, 3-foliolate; petiole 2–4 mm long, sulcate; leaflets obcordate to orbicular, c. 2–6 x 2–4 mm, puberulous, the terminal one attenuate into short petiolule at the base, the lateral ones subsessile, oblique
Morphology Reproductive morphology Flowers
Flowers pedicelled, glabrous
Morphology Reproductive morphology Flowers Calyx
Calyx c. 3 mm long, irregularly 5-toothed
Morphology Reproductive morphology Flowers Corolla
Corolla yellow, c. 12 mm long; tube c. 3 mm long; lobes suborbicular, subequal, c. 6 mm wide
Morphology Reproductive morphology Flowers Androecium Stamens
Filaments 7–10 mm long, inserted deeply in corolla-tube; anthers c. 3 mm long, dorsifixed
Morphology Reproductive morphology Flowers Disc
Disk ring-shaped
Morphology Reproductive morphology Flowers Gynoecium Style
Style up to 11 mm long, filiform
Morphology Reproductive morphology Fruits
Capsule 1–3 x 0.5–1.4 cm, greyish-brown, beaked
Morphology Reproductive morphology Seeds
Seeds c. 6 x 8 mm, excluding the winged margin.
Distribution
N1; Djibouti, Eritrea, Ethiopia, Yemen
Ecology
Altitude range 100–700 m.
Vernacular
Benin, binin (Somali).
[FSOM]

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]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • Flora of Somalia

    • Flora of Somalia
    • 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/

  • 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