including Aconitum napellus, Cimicifuga racemosa, Clematis recta, Clematis virginiana, Hydrastis canadensis, Ranunculus bulbosus, Helleborus niger, Delphinium staphisagria, Pulsatilla nigricans. Many genera are well known as cultivated flowers, such as Aconitum (monkshood), Clematis, Consolida (larkspur), Delphinium, Helleborus (Christmas rose), Trollius (globeflower). The seeds of Nigella sativa are used as a spice in Indian and Middle Eastern cuisine. Gallery Tribes of subfamily Ranunculoideae Other subfamilies Notes References Bibliography Langlet, O. (1932). Uber Chromosomenverhaltnisse und Systematik der Ranunculaceae. Svensk Bot. Tidskr 26, 381–401. , in Strasburger, Noll, Schenck, Schimper: Lehrbuch der Botanik für Hochschulen. 4. Auflage, Gustav Fischer, Jena 1900, p. 459 (flower diagrams) Sandro Pignatti. Flora d'Italia'', Edagricole, Bologna 1982. External links Flora of North America: Ranunculaceae Flora of China: Ranunculaceae Ranunculaceae in Topwalks Ranunculaceae in BoDD – Botanical Dermatology Database Ranunculaceae in L. Watson and M.J. Dallwitz (1992 onwards). The families of flowering plants. NCBI Taxonomy Browser links at CSDL, Texas Japanese Ranunculaceae - Flavon's art gallery Family Ranunculaceae Flowers in Israel Cai et al. Molecular phylogeny of Ranunculaceae based on internal transcribed spacer sequences 2009 Aconitum heterophyllum (fam. Ranunculaceae) at the Encyclopedia of Ayurvedic Medicinal Plants Eudicot families Extant Cretaceous first appearances