Euphorbiaceae
Euphorbia

Euphorbia delicatissima S.Carter

First published in Kew Bull. 45: 328 (1990)
This species is accepted
The native range of this species is N. Zimbabwe. It is an annual 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: low confidence
[AERP]

Euphorbiaceae, S. Carter & L.C. Leach. Flora Zambesiaca 9:5. 2001

Morphology General Habit
Glabrous annual herb, erect to 30 cm high; branches lax, spreading, very slender.
Morphology Leaves
Leaves with a petiole 0.5 mm long; stipules 0.5–0.75 mm long, filiform; lamina to 30 × 2 mm, linear, apiculate at the apex, obliquely rounded at the base and entire on the margin.
Morphology Reproductive morphology Inflorescences Cyathia
Cyathia terminal and pseudoaxillary, solitary on peduncles 0.5–1.5 mm long, 1.25 × 1.25 mm with cup-shaped involucres; glands 4, to 0.5 mm wide, transversely elliptic, with white to deep pink appendages, the 2 on either side of the gap through which the capsule is exserted larger, obtusely extended to 1.5 × 0.8 mm, usually smaller; lobes minute, acutely triangular.
sex Male
Male flowers: bracteoles few, filiform; stamens 1.5 mm long.
Morphology Reproductive morphology Flowers
Female flower: ovary pedicellate, pilose; styles 0.75 mm long, joined at the base, spreading, bifid for two-thirds, with slightly thickened apices. Male flowers: bracteoles few, filiform; stamens 1.5 mm long.
sex Female
Female flower: ovary pedicellate, pilose; styles 0.75 mm long, joined at the base, spreading, bifid for two-thirds, with slightly thickened apices.
Morphology Reproductive morphology Fruits
Capsule exserted on a reflexed pedicel to 1.8 mm long, 1.6 × 1.6 mm, acutely 3-lobed with truncate base, pilose except around the apex.
Morphology Reproductive morphology Seeds
Seeds 1.4 × 0.8 mm, oblong-conical, 4-angled, with numerous fine transverse ridges and grooves, pale pinkish-brown to pale grey.
[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

    • 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 2024. 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 2024. 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