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.
Sonchus arvensis, the field milk thistle, field sowthistle, perennial sow-thistle, corn sow thistle, dindle, gutweed, swine thistle, or tree sow thistle, is a species of flowering plant in the family Asteraceae. S. arvensis often occurs in annual crop fields and may cause substantial yield losses.
Asteriscus is a genus of flowering plants in the family Asteraceae.
Sonchus berteroanus, synonym Dendroseris berteroana, is a species of flowering plant in the family Asteraceae. It is found only in the Juan Fernández Islands of Chile. It is threatened by habitat loss.
Sonchus lobatiflorus, synonym Dendroseris gigantea, is a species of flowering plant in the family Asteraceae. It is endemic to the Juan Fernández Islands. It is threatened by habitat loss. Sonchus lobatiflorus has one plant representative left on Selkirk island, although it is being artificially planted on Robinson Crusoe Island.
Sonchus brassicifolius, synonym Dendroseris litoralis, is a species of flowering plant in the daisy and sunflower family Asteraceae. It is a small evergreen tree species known as the cabbage tree. It is endemic to the Juan Fernández Islands, which lie in the southeast Pacific, off the west coast of Chile. It is native only to the tiny, volcanic Robinson Crusoe Island, home of the famed Juania australis and many other endemic plants. The species is threatened by habitat loss and has been brought back from the brink of extinction. It had been reduced to only a few individuals by feral goats on the island, and is still considered critically endangered.
Sonchus sinuatus, synonym Dendroseris macrantha, is a species of flowering plant in the family Asteraceae. It is endemic to the Juan Fernández Islands of Chile. It is threatened by habitat loss.
Sonchus splendens, synonym Dendroseris macrophylla, is a species of flowering plant in the family Asteraceae. It is endemic to the Juan Fernández Islands of Chile. It is threatened by habitat loss.
Sonchus micranthus, synonym Dendroseris micrantha, is a species of flowering plant in the family Asteraceae. It is endemic to the Juan Fernández Islands of Chile. It is threatened by habitat loss.
Sonchus neriifolius, synonym Dendroseris neriifolia is a species of flowering plant in the family Asteraceae. It is a tree with droopy, elongated leaves and small yellow-white flowers. The plant was originally native to Continental Chile but is now endemic to Robinson Crusoe Island. The plant is endangered and very rare: only two specimens are known to exist in a ravine in the eastern part of the island, although there exist other human-cultivated specimens. It is classified as critically endangered by the World Conservation Monitoring Centre.
Sonchus phoeniciformis, synonym Dendroseris pinnata, is a species of flowering plant in the family Asteraceae. It is endemic to the Juan Fernández Islands of Chile. It is threatened by habitat loss.
Echium pininana, commonly known as the tree echium, pine echium, giant viper's-bugloss, or tower of jewels, is a species of flowering plant in the borage family Boraginaceae. It is endemic to the Canary Islands, where it is restricted to the island of La Palma. Echium pininana is an endangered species, and is listed in Appendix I to, and is therefore protected under, the Convention on the Conservation of European Wildlife and Natural Habitats. The specific epithet pininana is Latin for "small pine", though E. pininana is neither closely related to the pine, nor does it resemble that plant.
Salvia herbanica is a critically endangered perennial plant that is endemic to the Canary Islands, growing in the mountains of southern-central Fuerteventura, at 250 to 400 m elevation. In 2004 there were only 212 known plants in the wild, in ten locations, with fewer than 50 plants in each location. Habitat for the plant continues to shrink due to predation by herbivores. Less than 50 of the plants are safe from predation, with the rest of the plants in poor health.
Charles-Joseph Marie Pitard, name sometimes given as Charles-Joseph Marie Pitard-Briau was a French pharmacist and botanist.
Sonchus daltonii is a species of flowering plants of the family Asteraceae. The species is endemic to Cape Verde. It is listed as endangered by the IUCN. The genus was named by Philip Barker Webb in 1849. Its local name is coroa-de-rei.
Lactuca watsoniana, locally known as alfacinha, is a species of wild lettuce endemic to the Azores. An endangered species, there are fewer than 2000 individuals remaining in the wild. DNA evidence shows that it is closely related to the North American species of Lactuca, while the Canary Islands endemic Lactuca palmensis is more closely related to African and European Lactuca lineage.
Sonchus canariensis, the tree sonchus, is a species of plant endemic to the Canary Islands.
Sonchus fruticosus, the giant sow thistle, is a species of flowering plant in the tribe Cichorieae of the family Asteraceae. It is endemic to the islands of Madeira. The giant sow thistle is an impressive shrub native to the Madeiran evergreen forest habitat and growing up to 4 metres in height.
Helichrysum gossypinum, also known as cotton wool everlasting or yellow tinderbox, is a species of flowering plant within the genus Helichrysum and family Asteraceae. The species is endemic to the island of Lanzarote of the Canary Islands. Due to being an endemic species it can be found nowhere else in the world. The plant is characterized by its large vibrant yellow flowers and its ability to thrive in rocky habitats.
Sonchus novae-zelandiae, the dryland sow thistle, is a species of thistle in the family Asteraceae. It is endemic to New Zealand and is an endangered species.
