Small annual herb ; up to 20–120 cm high , with a well-developed taproot . Stems erect , unbranched , hairy . Leaves alternate , in upper part of stem , ovate , to 8 x 3 . 5 cm and scabridulous to the touch , with toothed margins , petiolate . Inflorescences a terminal head (capitulum) , 10-50 cm in diameter , surrounded by three rows of bracts (phyllaries) . Flowers yellow orange ; ray flowers serve to attract pollinators ; disc flowers numerous and are arranged in spiral whorls from the centre of the head , fertile . Fruit achene , up to 15-25 mm , white , brown , black or striped . (Ref . POWO ; 2023) .
No Data
Not Evaluated (NE)
Not Common
الوصف غير متاح حاليًا
Helianthus platycephalus Cass.
No data
maintenanceAr.Item1 maintenanceAr.Item3
Sunflower
Common Sunflower
Not used traditionally.
*https://en.wikipedia.org *Hammer, K. Gebauer, J. Al Khanjari, S. Buerkert, A. (2009). Oman at the cross-roads of inter-regional exchange of cultivated plants. Gene Resour Crop Evol (2009) 56:547-560. Springer Science+Business Media B.V. 2008. DOI 10.1007/s10722-008-9385-z. *POWO (2023). ""Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://www.plantsoftheworldonline.org