Synaptolepis alternifolia Oliv.

First published in Hooker's Icon. Pl. 12: t. 1194 (1876)
This species is accepted
The native range of this species is Tanzania to S. Tropical Africa. It is a shrub or liana and grows primarily in the seasonally dry tropical 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]

Flora Zambesiaca. Vol. 9, Part 3. Polygonaceae-Myriaceae. Pope GV, Polhill RM, Martins ES. 2006.

Type
Type from Tanzania.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary with a few hairs at the apex or glabrous, surrounded by a whorl of hairs at the base; disk c. 0.5 mm long; style 8–14 mm long
Ecology
Coastal dune forest, grassy hillsides, miombo woodland, riverine forest; 0–1524 m.
Note
In Mozambique powdered root tubers of Synaptolepis alternifolia are used as a purgative and for abdominal pains and diarrhoea. In southern Zimbabwe and in Mozambique this species is also used to stupefy fish. Material from the Flora Zambesiaca area is almost invariably climbing, but in Tanzania the plant described as S. longifolia is a small shrub. Vollesen in Opera Bot. 59: 40 (1980) considers that some form of recognition is desirable. The only truly subshrubby specimen seen from the Flora Zambesiaca area is Hepper 7369 (Malawi S: above Likhubula, fl. 18.ii.1982).
Distribution
Mozambique Malawi Also known from Tanzania. ZIM E, ZIM S, MAL N, MAL S, MOZ N, MOZ MS Zimbabwe
Morphology General Habit
Shrub or woody climber 0.5–6(10) m high, rarely a small subshrub c. 25 cm tall. Shrub or woody climber 0.5–6(10) m high, rarely a small subshrub c. 25 cm tall
Morphology Branches
Branches slender, glabrous; bark dark brown, reddish-brown or black, with horizontal whitish lenticels; sometimes with woody tendrils. Branches slender, glabrous; bark dark brown, reddish-brown or black, with horizontal whitish lenticels; sometimes with woody tendrils
Morphology Leaves
Leaves alternate or opposite; petiole 1.5–3 mm long; lamina deep green on the upper surface, light green or greyish-green beneath, (10)15–45(63) × (6)10–25(33) mm, narrowly to broadly elliptic or ovate, acuminate to obtuse or truncate at the apex, narrowly to broadly cuneate at the base, sometimes slightly undulate, glabrous, membranous to subcoriaceous. Leaves alternate or opposite; petiole 1.5–3 mm long; lamina deep green on the upper surface, light green or greyish-green beneath, (10)15–45(63) × (6)10–25(33) mm, narrowly to broadly elliptic or ovate, acuminate to obtuse or truncate at the apex, narrowly to broadly cuneate at the base, sometimes slightly undulate, glabrous, membranous to subcoriaceous
Morphology Reproductive morphology Flowers
Flowers white, pale yellow, cream or yellowish-cream, in terminal or axillary few- to 10-flowered pedunculate cymes; pedicels 2–12 mm long; bracts 1–2 mm long, ciliate, falling early. Flowers white, pale yellow, cream or yellowish-cream, in terminal or axillary few- to 10-flowered pedunculate cymes; pedicels 2–12 mm long; bracts 1–2 mm long, ciliate, falling early
Morphology Reproductive morphology Flowers Calyx
Calyx tube 12–18 mm long, glabrous; lobes 2–3.5 × 1–2 mm, ovate, glabrous. Calyx tube 12–18 mm long, glabrous; lobes 2–3.5 × 1–2 mm, ovate, glabrous
Morphology Reproductive morphology Flowers Corolla
Petals forming an entire or lobed ring with stiff hairs, c. 0.5 mm long, membranous. Petals forming an entire or lobed ring with stiff hairs, c. 0.5 mm long, membranous
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens of the upper whorl slightly exceeding the petals; anthers 1 mm long, subsessile. Stamens of the upper whorl slightly exceeding the petals; anthers 1 mm long, subsessile
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary with a few hairs at the apex or glabrous, surrounded by a whorl of hairs at the base; disk c. 0.5 mm long; style 8–14 mm long.
Morphology Reproductive morphology Fruits
Fruit yellow to reddish-orange, 12–23 × 8–12 mm, glabrous. Fruit yellow to reddish-orange, 12–23 × 8–12 mm, glabrous.
[FZ]

Thymelaeaceae, B. Peterson (University of Göteborg). Flora of Tropical East Africa. 1978

Morphology General Habit
Shrub or woody climber up to 10 m. high.
Morphology Branches
Branches slender, glabrous; bark reddish brown or black, lenticellate.
Morphology Leaves
Leaves alternate or opposite; petiole 1.5–3 mm. long; leaf-blade elliptic or ovate, (12–)15–45(–63) mm. long, (6–)10–25(–32) mm. wide, acuminate to truncate at the apex, cuneate or shortly narrowed at the base, sometimes slightly undulate, membranous to subcoriaceous, glabrous.
Morphology Reproductive morphology Flowers
Flowers white, pale yellow or cream, in terminal pedunculate cymes; bracts 1–2 mm. long, ciliate, falling off rather early.
Morphology Reproductive morphology Flowers Calyx
Calyx-tube 12–18 mm. long, glabrous; lobes ovate, 2–3.5 mm. long, 1–2 mm. wide, glabrous.
Morphology Reproductive morphology Flowers Corolla
Petals with stiff hairs, ± 0.5 mm. long.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens of the upper whorl slightly longer than the petals; anthers 1 mm. long.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary with a few hairs at the top or glabrous, surrounded by a whorl of hairs at the base; style 8–14 mm. long.
Morphology Reproductive morphology Fruits
Fruit glabrous, yellow to reddish orange, 12–23 mm. long, 8–12 mm. wide.
Figures
Fig. 2/1–6.
Habitat
Riverine forest and thicket, Brachystegia woodland, secondary bushland and wooded grassland; 50–1100 m.
Distribution
T3 T6 T7 T8
[FTEA]

Sources

  • Angiosperm Extinction Risk Predictions v1

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

    • '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