Naturalised
Annual herb ; to 50 cm high . Stems branched , erect to ± decumbent , often reddish , glabrous . Leaves opposite , 2–8 × 0 . 5–2 cm , ovate or lanceolate to oblanceolate , margins ± serrate , apex acute , attenuate towards the base ; petiole to 2 cm long , connate at base . Inflorescences 1–2-flowered , forming dense axillary clusters , up to 2 cm across and surrounded by leaves , the marginal capitula radiate , the inner discoid . Flowers pale yellow ; ray flower pistillate , ray lamina suborbicular , up to ± 1 mm long ; disc flowers tubular , perfect . Fruit achenes , ± 2 mm long , narrowly obovoid , ribbed , blackish , glabrous . Seeds pappus absent . (Ref . Flora of Oman ; vol . 3) .
No Data
Not Evaluated (NE)
Not Common
الوصف غير متاح حاليًا
Oedera trinervia Spreng.
No data
maintenanceAr.Item1
Clustered Yellowtops
Speedyweed
Yellow Twinstem
Not used traditionally.
*Ghazanfar, S. (2015). Flora of the Sultanate of Oman, vol.3: Loganiaceae – Asteraceae. Meise, National Botanic Garden of Belgium (Scripta Botanica Begica, Vol. 25). ISBN 9789082352511 ISSN 0779-2387. *https://en.wikipedia.org *https://www.merriam-webster.com *Gledhill, D. (2008). The Names of Plants. Fourth Edition. Cambridge University Press, UK. ISBN 978-0-521-86645-3 ISSN 978-0-521-68553-5. *Patzelt, A. Pysek, P. Pergl, J. Van Kleunen, M. (2022). Alien flora of Oman: invasion status, taxonomic composition, habitats, origin, and pathways of introduction. Doi.org/10.1007/s10530-021-02711-4. *POWO (2023). ""Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://www.plantsoftheworldonline.org
