Convolvulaceae
Ipomoea

Ipomoea marmorata Britten & Rendle

First published in J. Bot. 34: 36 (1896)
This species is accepted
The native range of this species is Ethiopia to Kenya. It is a perennial or shrub and grows primarily in the desert or dry shrubland biome.

Descriptions

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]

Convolvulaceae, B. Verdcourt (East African Herbarium). Flora of Tropical East Africa. 1963

Morphology General Habit
Erect subwoody shrub up to 0.6 m. tall, often flowering when leafless; young stems tomentose, soon becoming glabrous.
Morphology Leaves
Leaf-blade orbicular or reniform, 6–9 cm. long, 7.5–12.5 cm. wide, acute, rounded or retuse at the apex, velvety-pubescent or glabrescent above, densely velvety-tomentose beneath, sometimes only on the nerves; petiole 6 cm. long, biglandular at the apex.
Morphology Reproductive morphology Flowers
Flowers solitary, clustered at the apex of the shoots; peduncle 0.5–1.1 cm. long; pedicels up to 2.5 cm. long, very thick in fruit.
Morphology Reproductive morphology Flowers Calyx
Sepals ovate-oblong or elliptic, 1.6–2.3 cm. long, 0.8–1.6 cm. wide, with the outer two a little shorter, obtuse or emarginate at the apex, coriaceous, glabrous or sparsely tomentose.
Morphology Reproductive morphology Flowers Corolla
Corolla opening at night, white, (9.5–)12.5–16 cm. long; tube slender, 8–10 cm. long, 6–13 mm. in diameter; limb salver-shaped, 7.5 cm. in diameter, frilly at the edge.
Morphology Reproductive morphology Fruits
Capsule ovoid, obtuse or truncate, shortly beaked with the persistent style-base, ridged, 2.2–2.7 cm. long, 1.7 cm. wide.
Morphology Reproductive morphology Seeds
Seeds ovoid, 1 cm. long, densely covered with purple-brown hairs about 1.8 cm. long.
Figures
(Fig. 24/6, p. 131.)
Distribution
K1 K4
[FTEA]

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

Morphology General Habit
Erect or straggling shrub or subshrub, up to 1 m tall; young stems tomentose
Morphology Leaves
Leaf-blades ovate or reniform, 6–10.5 x 6–12.5 cm, cordate at the base, ± rounded to acute or acuminate at the apex, tomentose, particularly beneth; petiole 3–8 cm long, with 2 glands at the apex
Morphology Reproductive morphology Inflorescences
Flowers solitary in upper leaf-axils; peduncle 5–15 mm long; pedicels up to 25 mm long, very thick in fruit; bracts oblanceolate, 15–20 mm long
Morphology Reproductive morphology Flowers Calyx
Sepals ovate-oblong or elliptic, 16–23 x 8–16 mm, glabrous or sparsely tomentose
Morphology Reproductive morphology Flowers Corolla
Corolla opening at night, white, 9.5–16 cm long; tube 8–10 cm long; limb frilly at the edge
Morphology Reproductive morphology Fruits
Capsule ovoid, 22–27 mm long
Morphology Reproductive morphology Seeds
Seeds c. 10 mm long, densely covered by 18–20 mm long pale purple-brown hairs.
[FSOM]

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

  • 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 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

  • Kew Science Photographs

    • Copyright applied to individual images