Convolvulaceae
Jacquemontia

Jacquemontia peruviana Helwig

First published in Notizbl. Bot. Gart. Berlin-Dahlem 9: 1138 (1927)
This species is accepted
The native range of this species is S. Ecuador to Peru (Cajamarca). It is a climbing perennial 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: threatened. Confidence: confident
[AERP]

Wood, J.R.I., Clegg, R. Jacquemontia (Convolvulaceae) in Bolivia and Peru. Kew Bull 76, 375–420 (2021). DOI: https://doi.org/10.1007/s12225-021-09936-5

Type
Peru, Cajamarca, Prov. Cutervo, left side of Marañon Valley at Pion, 1300 – 1400 m, June 1915, A. Weberbauer 7193 (holotype B†, photo of holotype F-FOBN013768).
Morphology General Habit
A twining perennial with thin woody stems
Morphology Leaves
Leaves ovate or oblong-ovate, relatively small (5 cm long), brownish-tomentose, the base shallowly cordate, and the apex rounded and mucronate
Morphology Reproductive morphology Inflorescences
Inflorescence very compact; peduncles elongate; sepals 9 – 10 (– 14) mm in length, somewhat unequal, tomentose, ovate-acuminate terminating in a distinct aristate point; corolla blue, 17 – 20 mm long
Morphology Reproductive morphology Seeds
The seeds have a distinctive winged margin.
Distribution
In Peru, known only from the two old collections cited above but quite frequent in southern Ecuador, where it grows in very dry scrub between 1300 and 1700 m. Map 14.
Conservation
There has been no record from Peru for more than a century so it is possibly Extinct (EX) in that country. There are, however, several, apparently healthy populations in southern Ecuador.
[KBu]

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: confident
[AERP]

Sources

  • Angiosperm Extinction Risk Predictions v1

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

  • 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 Bulletin

    • Kew Bulletin
    • http://creativecommons.org/licenses/by-nc-sa/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