Polygalaceae
Polygala

Polygala dewevrei Exell

First published in J. Bot. 70: 186 (1932)
This species is accepted
The native range of this species is E. Angola to DR Congo. It is an annual or subshrub 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: low confidence
[AERP]

Polygalaceae, A. W. Exell. Flora Zambesiaca 1:1. 1960

Morphology General Habit
Much branched annual herb up to 60 cm. tall with slender, glabrous or almost glabrous stems.
Morphology Leaves
Leaves 10–20 x 0.3–1 mm., linear to almost acicular, with incurved margins.
Morphology Reproductive morphology Flowers
Flowers yellowish-green and blue, pedicels 2–3 mm. long, in subcapitate, lateral racemes about 1 cm. in diam. with glabrous rhachis and small caducous bracts and bracteoles c. 1 mm. long.
Morphology Reproductive morphology Flowers Calyx
Posterior sepal 1.5 mm. long; wing sepals 4–5 x 2–2.5 mm., obliquely elliptic, acute at the apex, glabrous; anterior sepals 1.2 mm. long, connate.
Morphology Reproductive morphology Flowers Corolla
Upper petals 1.8 x 1 mm., broadly oblong; carina 4.5 x 2 mm., crest 1.5 mm. long.
Morphology Reproductive morphology Flowers Androecium
Stamens 6 fertile and 2 staminodes.
Morphology Reproductive morphology Fruits
Capsule 2–2.5 x 1.8–2 mm., suborbicular in outline, glabrous, marginal wing 0.5 mm. broad.
Morphology Reproductive morphology Seeds
Seeds (somewhat immature) 1.5 x 0.8 mm., ellipsoid, with white, silky hairs; caruncle 0.5 mm. long, appendages scarcely developed.
Note
(Capsule and seeds described from Angolan material).
[FZ]

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

  • 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