Alaskan Lupine
| Alaskan Lupine | ||||||||||||
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Alaskan Lupins in Iceland |
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| Lupinus nootkatensis | ||||||||||||
| Thursday ex Sims |
The Alaskan lupine ( Lupinus nootkatensis ) is plant type from the family of legumes (Fabaceae). It is native to northwest North America. It was also introduced in parts of Northern Europe.
description
The Alaska lupine grows as a perennial, herbaceous plant that can reach heights of 50 to 120 centimeters. The stems are densely hairy. In winter only their base ( caudex ) survives from which they sprout again in spring.
The basal leaves are short-stalked and have several oblong obovate to lanceolate leaflets. These have a blunt or tapering tip and have white to brown hairs that are more or less dense on both sides of the leaf. The upper side of the leaf can also be hairless.
The racemose inflorescence consists of blue, rarely white single flowers. The broad sepals can be furrowed, lobed or toothed.
The number of chromosomes is 2n = 48.
Occurrence and location
The natural range of the Alaskan lupine is in the northwest of North America. They are found there from the Aleutian Islands in the north along the Arctic coast to Haida Gwaii and Vancouver Island in the south. In the 18th century, the Alaskan lupine was introduced to Great Britain as an ornamental plant and in the 19th century to Iceland and Scandinavia where it became wild. Since the 1970s there have also been deposits in southwestern Greenland and on the Faroe Islands .
Systematics
It was first described as Lupinus nootkatensis in 1810 by James Donn in Botanical Magazine , Volume 32, Page 1311. A synonym for Lupinus nootkatensis Donn ex Sims is Lupinus perennis subsp. nootkatensis (Donn ex Sims) L.Ll. Phillips .
According to the Plant List, the species is divided into two varieties :
- Lupinus nootkatensis var. Fruticosus ledge
- Lupinus nootkatensis var. Nootkatensis is the nominate form .
swell
- Börthor Magnusson: NOBANIS - Invasive Alien Species Fact Sheet . Lupinus nootkatensis . Ed .: Online Database of the North European and Baltic Network on Invasive Alien Species. 2006 (English, online [PDF; 817 kB ]).
Individual evidence
- ↑ a b c d Brachthor Magnusson: NOBANIS - Invasive Alien Species Fact Sheet . Lupinus nootkatensis . Ed .: Online Database of the North European and Baltic Network on Invasive Alien Species. 2006 (English, online [PDF; 817 kB ]).
- ↑ Lupinus nootkatensis at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
- ↑ Lupinus nootkatensis at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed July 21, 2012.
- ↑ Lupinus nootkatensis. In: The Plant List. www.theplantlist.org, accessed on July 21, 2012 .
Web links
- Lupinus nootkatensis inthe IUCN 2013 Red List of Threatened Species . Posted by: Contu, S., 2012. Retrieved September 5, 2013.