Pentanema Cass.

First published in Bull. Sci. Soc. Philom. Paris 1818: 74 (1818)
This genus is accepted
The native range of this genus is Temp. Eurasia, NW. Africa, Ethiopia.

Descriptions

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology General Habit
Small shrubs or annual herbs
Morphology Leaves
Leaves alternate
Morphology Reproductive morphology Inflorescences
Capitula generally heterogamous and radiate, but sometimes disciform or homogamous and discoid (as in Somalia), in terminal cymose panicles; hibernating young capitula often present; receptacle epaleate, smooth
Morphology Reproductive morphology Flowers Florets
Ray florets yellow (absent in Somalia); disk florets yellow, 5-lobed, style-arms ± flattened, obtuse or truncate at the apex
Morphology Reproductive morphology Fruits
Achenes ellipsoid; pappus of barbellate bristles in one series.
Distribution
About 34 species from Central Asia, India and Sri Lanka, but naturalized elsewhere; the Somali species is the only native one in Africa.
[FSOM]

Compositae, H. Beentje, C. Jeffrey & D.J.N. Hind. Flora of Tropical East Africa. 2005

Morphology General Habit
Small shrubs or annual herbs
Morphology Leaves
Leaves alternate
Morphology Reproductive morphology Inflorescences Capitulum
Capitula generally heterogamous and radiate, but sometimes disciform or homogamous and discoid (as in ours), in terminal cymose panicles; receptacle epaleate, smooth
Morphology Reproductive morphology Flowers Florets
Ray florets yellow (in ours absent); disc florets yellow, 5-lobed, style arms ± flattened, obtuse or truncate at the apex
Morphology Reproductive morphology Fruits
Achenes ellipsoid; pappus of barbellate bristles in one row.
[FTEA]

Sources

  • Flora of Somalia

    • Flora of Somalia
    • 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
  • 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