The following species in the flowering plant genus Centaurea are accepted by Plants of the World Online. [1] Species in this genus hybridize readily. [2]
Nepeta is a genus of flowering plants in the family Lamiaceae. The genus name is reportedly in reference to Nepete, an ancient Etruscan city. There are about 250 species.
Genista is a genus of flowering plants in the legume family Fabaceae, native to open habitats such as moorland and pasture in Europe and western Asia. They include species commonly called broom, though the term may also refer to other genera, including Cytisus and Chamaecytisus. Brooms in other genera are sometimes considered synonymous with Genista: Echinospartum, Retama, Spartium, Stauracanthus, and Ulex.
Verbascum is a genus of over 450 species of flowering plants, common name mullein, in the figwort family Scrophulariaceae. They are native to Europe and Asia, with the highest species diversity in the Mediterranean.
Anthemis is a genus of aromatic flowering plants in the family Asteraceae, closely related to Chamaemelum, and like that genus, known by the common name chamomile; some species are also called dog-fennel or mayweed. Anthemis are native to the Mediterranean region and southwest Asia east to Iran. A number of species have also become naturalized in the United Kingdom and other parts of the world.
Trigonella is a genus from the family Fabaceae. The best known member is the herb fenugreek. Members of the genus occur naturally in the Canary Islands, southern Europe, non‑tropical Africa, western and central Asia, the Indian subcontinent, and Australia.
Alyssum is a genus of about 100–170 species of flowering plants in the family Brassicaceae, native to Europe, Asia, and northern Africa, with the highest species diversity in the Mediterranean region. The genus comprises annual and perennial herbaceous plants or (rarely) small shrubs, growing to 10–100 cm tall, with oblong-oval leaves. Alyssum flowers are characteristically small and grouped in terminal clusters; they are often yellow or white colored but can be pink or purple.
Asperula, commonly known as woodruff, is a genus of flowering plants in the family Rubiaceae. It contains about 195 species and has a wide distribution area from Europe, northern Africa, temperate and subtropical Asia to Australasia.
Alkanna is a genus of herbaceous plants including about 60 species of the family Boraginaceae.
Filago is a genus of plants in the sunflower family, native to Europe, Asia, and North Africa. They are sometimes called cottonroses or cudweeds.
Rhaponticoides is a genus of flowering plants in the family Asteraceae, found in northern Africa, southern and eastern Europe, and western Asia as far east as Mongolia. They were resurrected from Centaurea.
Psephellus is a genus of flowering plants in the family Asteraceae, native to eastern Europe and western Asia. A taxonomic revision reassigned many species from Centaurea to Psephellus.