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Calendula aegyptiaca, Calendula alata, Calendula bicolor, Calendula brachyglossa, Calendula byzantina, Calendula ceratosperma, Calendula cristagalli, Calendula echinata, Calendula gracilis, Calendula karakalensis, Calendula macroptera, Calendula malacitana, Calendula malvaecarpa, Calendula micrantha, Calendula parviflora, Calendula persica, Calendula platycarpa, Calendula repanda, Calendula sancta, Calendula sicula, Calendula sinuata, Calendula stellata, Calendula subinermis, Calendula sublanata, Calendula sylvestris, Calendula undulata, Caltha arvensis, Caltha graveolens
Field Marigold, hanwa
Calendula arvensis is a species of flowering plant in the daisy family known by the common name field marigold. It is native to central and southern Europe, and it is known across the globe as an introduced species. It is an annual herb not generally exceeding 15 centimeters in height. The leaves are lance-shaped and borne on petioles from the slender, hairy stem. The inflorescence is a single flower head up to 4 centimeters wide with bright yellow to yellow-orange ray florets around a center of yellow disc florets. The fruit is an achene which can take any of three shapes, including ring-shaped, that facilitate different methods of dispersal.
QNHG (Qatar Natural History Group) and associated people, for a possibility to participate in their field excursions and to learn about local nature.