Hieracium lachenalii
Hieracium lachenalii | |
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File:Hawkweed 2007-5.jpg | |
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H. lachenalii
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Binomial name | |
Hieracium lachenalii |
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File:Range of Hieracium lachenalii-World.svg | |
Hieracium lachenalii distribution | |
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Synonymy
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Hieracium lachenalii also known as common hawkweed or yellow hawkweed is a species of plants 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[3] but more recent studies indicated that the two names represented the same species. The name H. lachenalii was coined in 1802,[4] H. vulgatum in 1819,[5] so the older name is to be used.[6]
Contents
Description
This common weed can grow and produce flowers on plants that range from 4 inches (10 centimeters) to 36 inches (90 cm) tall. The rhizome is short and stout. The broadly elliptic leaves can be up to 5 inches (12 centimeters) long and taper with teeth towards the base.[7] Each flower head has 40-80 ray florets but no disc florets[8][9] Bracts surround the flower head; the receptacle (basal part of the flower on which the florets are attached) is flat and naked; heads tend to start together then become somewhat solitary on long leafless stems.[8] The stalks below the heads are covered with scattered, simple and gland-tipped black hairs and contain a milky substance.[9]
The pale yellow flowers are produced during all of the summer months. The fruit are dark brown achenes.[7]
Common names
- Croatian: Obična runjika
- German: Gewöhnliches Habichtskraut, Lachenals Habichtskraut
- English: Common Hawkweed, Yellow Hawkweed
- French: Epervière de Lachenal
- Italian: Sparviere comune
- Latvian: Jakarda mauraga
- Serbian: Maslačak
- Slovene: Lachenalova škržolica, Navadna škržolica
- Russian: Ястребинка Жаккара[10]
- Dutch: Gewoon havikskruid
- Welsh: Heboglys
Distribution and habitat
Native to most of Europe,[10] Hieracium lachenalii was introduced to cooler parts of North America,[11] and to Australia.[8] It can sometimes be found in soils that have been disturbed.[12]
Europe
Austria, Belarus, Belgium, Bosnia-Herzegovina, Channel Islands, Republic of Croatia, Corsica, Czech Republic, Denmark, Estonia, France, Finland, Germany, Republic of Hungary, Ireland, Italy, Latvia, Principality of Liechtenstein, Lithuania, Grand Duchy of Luxemburg, Republic of Macedonia, Montenegro, Netherlands, Republic of North Ossetia–Alania, Norway, Republic of Poland, Romania, San Marino, Serbia, Slovenia, Slovakia, Sweden, Switzerland, Ukraine, United Kingdom, Vatican City, and various oblasts of Russia:
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and its autonomous republics:
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North America
Subarctic America: Greenland.[14]
Canada: British Columbia, New Brunswick, Newfoundland, Nova Scotia, Ontario, Prince Edward Island, Quebec.[14]
United States: Connecticut, Delaware, Maine, Massachusetts, Michigan, Minnesota, New Hampshire, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont, Washington, Wisconsin.[14]
References
- ↑ Tropicos, search for Hieracium lachenalii
- ↑ The Plant List, Hieracium lachenalii Suter
- ↑ Flora of North America, Hieracium vulgatum Fries, 1819.
- ↑ The International Plant Names Index, Hieracium lachenalii
- ↑ The International Plant Names Index, Hieracium vulgatum
- ↑ International Code of Nomenclature for algae, fungi, and plants (Melbourne Code), article 11
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- ↑ 10.0 10.1 10.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Biota of North America Program 2014 state-level distribution map
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- ↑ 14.0 14.1 14.2 Lua error in package.lua at line 80: module 'strict' not found.
External links
- Media related to Lua error in package.lua at line 80: module 'strict' not found. at Wikimedia Commons
- Data related to Hieracium lachenalii at Wikispecies
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- Hieracium
- Flora of Europe
- Invasive plant species
- Plants described in 1802