Convolvulaceae
Ipomoea

Ipomoea pogonantha Thulin

First published in Nordic J. Bot. 23: 635 (2005)
This species is accepted
The native range of this species is Ethiopia to Kenya. It is a climbing shrub or liana 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
S1, 31 km S of “Baidoba” on “Dinsor” road, Gillett & Hemming 24675 (K holo.)
Morphology General Habit
Woody climber, often flowering when leafless; stems up to at least 3 m long, ± muricate, ± densely pubescent with usually retrorse ± appressed hairs to subglabrous
Morphology Leaves
Leaf-blades ovate-triangular to reniform, 1–6 x 1–5.5 cm, truncate to broadly cordate at the base, acuminate and mucronulate at the apex, appressed pubescent; petiole 0.4–2.7 cm long
Morphology Reproductive morphology Inflorescences
Cymes 1–3(–several)-flowered; peduncle 1–3 mm long; pedicels (3–)5–15 mm long
Morphology Reproductive morphology Flowers Calyx
Sepals broadly elliptic-oblong to suborbicular, (3–)6–12 x (2.5–)4–7.5 mm, obtuse to truncate and mucronulate at the apex, with hyaline margins, glabrous or minutely ciliate
Morphology Reproductive morphology Flowers Corolla
Corolla creamy white to pale yellow, yellow-green or peach-coloured with purple centre, (3–)4–6 cm long, glabrous except for densely ciliate margin
Morphology Reproductive morphology Fruits
Capsule ovoid-rounded, 8–10 mm long
Morphology Reproductive morphology Seeds
Seeds ± ovoid, c. 5 mm long, tomentose with whitish c. 0.5 mm long hairs.
Distribution
S1; Ethiopia, northern Kenya
Ecology
Altitude range 280–470 m.
Note
This was included in I. triflora Forssk., with type from Yemen, by Verdcourt in Fl. Trop. E. Afr. (1963), but I. pogonantha differs markedly, for example, in its densely ciliate corolla margin, particularly obvious in the bearded tips of the buds, and in the rounded capsules and shortly tomentose seeds.
[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: threatened. Confidence: low confidence
[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

    • 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 2026. 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 2026. 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