Bidens is a genus of flowering plants in the aster family, Asteraceae. The genus include roughly 230 species which are distributed worldwide. Despite their global distribution, the systematics and taxonomy of the genus has been described as complicated and unorganized. The common names beggarticks, black jack, burr marigolds, cobbler's pegs, Spanish needles, stickseeds, tickseeds and tickseed sunflowers refer to the fruits of the plants, most of which are bristly and barbed. The generic name refers to the same character; Bidens comes from the Latin bis ("two") and dens ("tooth").
Tanacetum is a genus of about 160 species of flowering plants in the aster family, Asteraceae, native to many regions of the Northern Hemisphere. They are known commonly as tansies. The name tansy can refer specifically to Tanacetum vulgare, which may be called the common tansy or garden tansy for clarity. The generic name Tanacetum means 'immortality' in Botanical Latin, since tansy was once placed between the burial sheets of the dead to repel vermin.
Conyza is a genus of flowering plants in the family Asteraceae.
Sonchus is a genus of flowering plants in the tribe Cichorieae within the family Asteraceae and are commonly known as sow thistles. Sowthistles are annual, biennial or perennial herbs, with or without rhizomes and a few are even woody.
Leontodon is a genus of plants in the tribe Cichorieae within the family Asteraceae, commonly known as hawkbits.
Argyranthemum is a genus of flowering plants belonging to the family Asteraceae. Members of this genus are sometimes also placed in the genus Chrysanthemum.
Anaphalis is a genus of herbaceous and woody flowering plants within the family Asteraceae, whose members are commonly known by the name pearl or pearly everlasting. There are around 110 species with the vast majority being native to central and southern Asia. There is one species native to North America that is fairly well known and popular in cultivation, namely the western pearly everlasting.
Gnaphalium is a genus of flowering plants in the family Asteraceae, commonly called cudweeds. They are widespread and common in temperate regions, although some are found on tropical mountains or in the subtropical regions of the world.
Echium is a genus of flowering plants in the family Boraginaceae that contains about 70 species and several subspecies.
Tripleurospermum is a genus in the chamomile tribe within the sunflower family. Mayweed is a common name for plants in this genus.
Kleinia is a genus of African flowering plants in the sunflower family. Kleinia contains around 50 species and is distributed from the Canary Islands, throughout Tropical Africa to India and Arabia. It is closely related to the genus Senecio but is distinguished primarily by having succulent stems or leaves.
Micromeria is a genus of flowering plants in the mint family, Lamiaceae, widespread across Europe, Asia, Africa, and North America, with a center of diversity in the Mediterranean region and the Canary Islands. It is sometimes placed within the genus Satureja. The name is derived from the Greek words μῑκρος (mīkros), meaning "small," and μερίς (meris), meaning "portion," referring to the leaves and flowers. Common names include savory and whitweed.
Pectis is a genus of flowering plants in the family Asteraceae described as a genus by Linnaeus in 1759.
Argyranthemum frutescens, known as Paris daisy, marguerite or marguerite daisy, is a perennial plant known for its flowers. It is native to the Canary Islands. Hybrids derived from this species are widely cultivated as ornamental plants in private gardens and public parks in many countries, and have naturalized in Italy and southern California. There are many cultivars, but the most common has white petals.
Psilactis is a genus of North American and South American plants in the tribe Astereae within the family Asteraceae which are known by the common name tansyaster. There are six species within the genus.
Tolpis is a genus of flowering plants in the tribe Cichorieae within the family Asteraceae. It is native to Africa, Southern Europe, the Middle East and Macaronesia. Many species are limited to the Canary Islands.
Leibnitzia (sunbonnets) is a genus of Asian and North American flowering plants in the family Asteraceae.
Omalotheca is a genus of flowering plants in the daisy family. It is commonly known as arctic cudweed.
Piptocarpha is a genus of flowering plants in the family Asteraceae. Ashdaisy is a common name for these plants.
