Hieracium , known by the common name hawkweed and classically as hierakion, is a genus of flowering plant in the sunflower family Asteraceae, and closely related to dandelion (Taraxacum), chicory (Cichorium), prickly lettuce (Lactuca) and sow thistle (Sonchus), which are part of the tribe Cichorieae. Hawkweeds, with their 10,000+ recorded species and subspecies, do their part to make Asteraceae the second largest family of flowering plants. Some botanists group all these species or subspecies into approximately 800 accepted species, while others prefer to accept several thousand species. Since most hawkweeds reproduce exclusively asexually by means of seeds that are genetically identical to their mother plant, clones or populations that consist of genetically identical plants are formed and some botanists prefer to accept these clones as good species whereas others try to group them into a few hundred more broadly defined species. What is here treated as the single genus Hieracium is now treated by most European experts as two different genera, Hieracium and Pilosella, with species such as Hieracium pilosella, Hieracium floribundum and Hieracium aurantiacum referred to the latter genus. Many members of the genus Pilosella reproduce both by stolons and by seeds, whereas true Hieracium species reproduce only by seeds. In Pilosella, many individual plants are capable of forming both normal sexual and asexual (apomictic) seeds, whereas individual plants of Hieracium only produce one kind of seeds. Another difference is that all species of Pilosella have leaves with smooth (entire) margins whereas most species of Hieracium have distinctly dentate to deeply cut or divided leaves.
A dry roadside dotted with small, ¾ inch red orange flowers, interspersed with very similar yellow ones, and often the white of daisies, is a good sign that you are in Hawkweed country.
Hieracium umbellatum, the Canadian hawkweed, Canada hawkweed, narrowleaf hawkweed, or northern hawkweed, is a flowering plant in the daisy family Asteraceae.
Hieracium lachenalii, also known as common hawkweed or yellow hawkweed, is a species of plant in the dandelion tribe within the sunflower family. It is native to Europe but has become established as a weed in Australia and parts of North America. The species was widely known for many years as H. vulgatum, but more recent studies have indicated that the two names represent the same species. The name H. lachenalii was coined in 1802, H. vulgatum in 1819, so the older name is to be used.
Diasemia reticularis is a species of moth of the family Crambidae. It is typically found in the tropics, but may range into Europe as far north as the North Sea region because of its migratory nature.
Hellinsia osteodactyla is a moth of the family Pterophoridae. It is found in most of Europe, as well as North Africa and from Asia Minor to Japan. Also known as the small golden-rod plume it was first described by Philipp Christoph Zeller in 1841.
Oxyptilus ericetorum is a moth of the family Pterophoridae. It is found in most of Europe, east to Siberia.
Hellinsia lienigianus is a moth of the family Pterophoridae which inhabits coastal areas, dry pastures and waste ground and is found in Africa, Asia, Australia and Europe. Also known as the mugwort plume it was first described by Philipp Christoph Zeller in 1852.
Oxyptilus is a genus of moths in the family Pterophoridae described by Philipp Christoph Zeller in 1841.
Agdistis tamaricis is a moth of the family Pterophoridae found in Africa, Asia and Europe. It was first described by the German entomologist, Philipp Christoph Zeller in 1847.
Oxyptilus parvidactyla, also known as the small plume, is a moth of the family Pterophoridae found in Africa, Asia and Europe. It was first described by Adrian Hardy Haworth in 1811.
Crombrugghia distans, also known as the Breckland plume is a moth of the family Pterophoridae found in Africa, Asia and Europe. It was first described by Philipp Christoph Zeller in 1847.
Crombrugghia laetus, also known as the scarce light plume is a moth of the family Pterophoridae, found in southern Europe, North Africa, the Canary Islands, Asia Minor and Iraq. It was first described by Philipp Christoph Zeller in 1847.
Merrifieldia baliodactylus, also known as the dingy white plume, is a moth of the family Pterophoridae found in most of Europe. It was first described by the German entomologist, Philipp Christoph Zeller in 1841.
Capperia ningoris is a moth of the family Pterophoridae. It is found in North America, including California, Oregon and Alberta.
Crombrugghia kollari is a moth of the family Pterophoridae. It is found in Spain, Italy, France, Austria and Switzerland and has also been recorded from southern Russia and Turkey. It is an Alpine species.
Crombrugghia tristis is a moth of the family Pterophoridae. It is found in most of Europe, except the Benelux, Great Britain, Ireland and Scandinavia. It is also known from southern Siberia, Asia Minor and central Asia. The habitat consists of sandy areas overgrown with Hieracium.
Oxyptilus chrysodactyla is a moth of the family Pterophoridae. It is found in most of Europe, except most of the Balkan Peninsula, Great Britain, Ireland and Portugal.
Celypha rurestrana, the hawkweed marble, is a moth of the family Tortricidae. It was described by Philogène Auguste Joseph Duponchel in 1843. It is found in most of Europe, except Ireland, Lithuania, Ukraine and the western part of the Balkan Peninsula. It is also found in Turkey.
Scythris siccella is a moth of the family Scythrididae first described by the German entomologist Philipp Christoph Zeller in 1839, found in Europe.
