Persicaria lapathifolia, known as pale persicaria, is a plant of the family Polygonaceae. It is considered to be native throughout most of the world, from arctic to tropical realms, except South America and Southern Africa. It is closely related to Persicaria maculosa and as such is considered a weed in Britain and Europe. Other common names for the plant include pale smartweed, curlytop knotweed, and willow weed. It is a species complex made up of a great many varying forms, sometimes considered varieties. The environment also has a strong influence on the morphology of an individual plant.
Antennaria dioica is a Eurasian species of flowering plant in the family Asteraceae. It is a perennial herb found in cool northern and mountainous regions of Europe and northern Asia (Russia, Mongolia, Japan, Kazakhstan, China and the Aleutian Islands of Alaska.
Gnaphalium is a genus of flowering plants in the family Asteraceae, commonly called cudweeds or (formerly) chafeweeds. They are widespread and common in temperate regions, although some are found on tropical mountains or in the subtropical regions of the world.
Echinops sphaerocephalus, known by the common names glandular globe-thistle, great globe-thistle or pale globe-thistle, is a Eurasian species of globe-thistle belonging to the tribe Cardueae within the family Asteraceae.
Pseudognaphalium californicum is a species of flowering plant in the family Asteraceae known by several common names, including ladies' tobacco, California rabbit tobacco, California cudweed, and California everlasting.
Pseudognaphalium canescens is a species of flowering plant in the family Asteraceae known by the common name Wright's cudweed.
Gnaphalium palustre, known by the common name western marsh cudweed, is a species of flowering plant in the family Asteraceae.
Hypochaeris glabra is a species of flowering plant in the tribe Cichorieae within the family Asteraceae known by the common name smooth cat's ear. It is native to Europe, North Africa, and the Middle East but it can be found on other continents where it is an introduced species and a widespread weed. It has become widespread in Africa, southern and southeastern Asia, Australia, and parts of the Americas.
Euchiton sphaericus, the star cudweed or tropical creeping cudweed, is a herb native to Australia, New Zealand, New Caledonia, Taiwan, Java, and Philippines. It has become naturalized in a few places in the United States.
Pseudognaphalium luteoalbum, synonyms including Helichrysum luteoalbum, is a species of flowering plant in the family Asteraceae. In the United Kingdom, it is known as the Jersey cudweed.
Omalotheca sylvatica, synonyms including Gnaphalium sylvaticum, is a species of plant in the family Asteraceae. It is commonly known as heath cudweed, wood cudweed, golden motherwort, chafeweed, owl's crown, and woodland arctic cudweed. It is widespread across the temperate Northern Hemisphere, throughout North America and Eurasia. The species was first formally described by Carl Linnaeus in 1753 as Gnaphalium sylvaticum.
Omalotheca norvegica, synonym Gnaphalium norvegicum, is a European species of plants in the family Asteraceae. It is known as the highland cudweed or Norwegian arctic cudweed. It is native to eastern Canada and Greenland, and widespread across much of Eurasia from the Mediterranean north to Finland and Iceland and east to Siberia.
Crepis tectorum, commonly referred to as the narrowleaf hawksbeard or narrow-leaved hawk's-beard, is an annual or winter annual plant between 30 and 100 centimetres in height. Originating in Siberia before being introduced to Canada in 1890, the narrowleaf hawksbeard's is an invasive species. Maintaining one branched, hairless and leafy stem during maturity, the narrowleaf hawksbeard has yellow leaves which are arranged in an alternate manner and less than 0.5 inches (13 mm) wide.
Sonchus palustris, commonly known as marsh sowthistle, is a plant native to temperate regions of the Europe, Russia, Central Asia, and Xinjiang in western China. It has also become naturalized in a few locations in the Canadian Province of Ontario.
Gnaphalium exilifolium, the slender cudweed, is a plant species native to the western United States and northern Mexico. It grows in hilly and mountainous regions in the Black Hills, Rocky Mountains, and other ranges from the states of Chihuahua, Colorado, Kansas, South Dakota, Wyoming, Arizona, New Mexico and Utah. It grows in moist locations such as lake shores, stream banks, moist meadows, etc., at elevations of 1,400–3,000 m (4,600–9,800 ft).
Doronicum plantagineum, the plantain-leaved leopard's-bane or plantain false leopardbane, is a European plant species in the sunflower family. It is native to southeastern Europe from Greece and Italy to Ukraine and the Czech Republic. There are reports of the species being naturalized in the State of Oregon in the northwestern United States.
Crepis vesicaria is a European species of flowering plant in the family Asteraceae with the common name beaked hawk's-beard. It is native to the Western and Southern Europe from Ireland and Portugal east as far as Germany, Austria, and Greece. It became naturalized in scattered locations in North America.
Gamochaeta coarctata, the gray everlasting, is a species of flowering plant in the family Asteraceae. It is widespread in South America and naturalized in parts of Eurasia, Australia, and North America.
Gamochaeta pensylvanica, the Pennsylvania cudweed or Pennsylvania everlasting, is a widespread species of flowering plant in the family Asteraceae. It is native to South America and introduced into Eurasia, Africa, Australia, and North America. The pensylvanica epithet is a misnomer, as the plant is not native to Pennsylvania and only marginally naturalized there.
Gnaphalium polycaulon, the many stem cudweed, is a plant species in the family Asteraceae. It is widespread across much of Mesoamerica, South America, and the West Indies, and naturalized in parts of Asia and Africa.
