Convolvulaceae
Ipomoea
Ipomoea linosepala

Ipomoea linosepala subsp. alpina (Rendle) Lejoly & Lisowski

First published in Fragm. Florist. Geobot. 37: 82 (1992)
This subspecies is accepted
The native range of this subspecies is Nigeria to Tanzania and S. Tropical Africa. It is a perennial and grows primarily in the seasonally dry tropical biome.

Descriptions

Convolvulaceae, Maria Leonor Gonçalves. Flora Zambesiaca 8:1. 1987

Morphology General Habit
Perennial herb, bristly-pilose with orange-brown hairs, up to 1·7 m. high.
Morphology Stem
Stems several, annual, erect or semiprostrate, up to 25 cm. tall, from a tuberous rootstock.
Morphology Leaves
Leaf lamina linear to oblong, 1·7–9 × 0·15–1·18 cm., more or less acute at the apex, cuneate at the base, sparsely bristly-pilose to densely pilose on both surfaces particularly on the margins and nerves beneath; petiole 2–5 mm. long.
Morphology Reproductive morphology Flowers
Flowers solitary in the upper axils; peduncle and pedicel together 0·3–3 cm. long; bracts linear, 0·6–2 cm. long.
Morphology Reproductive morphology Flowers Calyx
Sepals linear triangular, bristly pilose, 0·75–1·7 cm. long.
Morphology Reproductive morphology Flowers Corolla
Corolla tubular, little expanded above, orange-yellow, pale yellow or white, 1·8–3·7 cm. long, glabrous below but apices of midpetaline areas hairy; interpetaline areas tenuously thin.
Morphology Reproductive morphology Fruits
Capsule globose, glabrous.
Morphology Reproductive morphology Seeds
Seeds minutely pubescent.
[FZ]

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

Morphology General Habit
Perennial herb, bristly-pilose with orange-brown hairs; stems several, annual, erect or semiprostrate, up to 25 cm. tall, from a tuberous rootstock.
Morphology Leaves
Leaf-blade linear to oblong, 1.7–8 cm. long, 0.15–1.8 cm. wide, more or less acute at the apex, cuneate at the base, sparsely bristly-pilose to densely pilose on both surfaces particularly on the margins and nerves beneath; petiole 2–5 mm. long.
Morphology Reproductive morphology Flowers
Flowers solitary in the upper axils; peduncle and pedicel together 0.3–3 cm. long; bracts linear, 0.6–2 cm. long.
Morphology Reproductive morphology Flowers Calyx
Sepals linear-triangular, bristly pilose, 0.75–1.7 cm. long, about 1.5 mm. wide.
Morphology Reproductive morphology Flowers Corolla
Corolla orange-yellow, pale yellow or white, tubular, little expanded above, 1.8–3.7 cm. long, glabrous below but tips of midpetaline areas hairy; interpetaline areas tenuously thin.
Morphology Reproductive morphology Fruits
Capsule not known.
Habitat
Upland grassland and woodland, often on sandy or stony ground; 1350–2750 m.
Distribution
T4 T7
[FTEA]

Sources

  • Flora Zambesiaca

    • Flora Zambesiaca
    • 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