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Lupin

From Academic Kids

For other uses of the word see: Lupin (disambiguation)

Lupin
Texas bluebonnet
Bluebonnet (Lupinus texensis)
Scientific classification
Kingdom:Plantae
Division:Magnoliophyta
Class:Magnoliopsida
Order:Fabales
Family:Fabaceae
Subfamily:Faboideae
Tribe:Cytiseae
Genus:Lupinus
Species

over 150 recognised species, including:
Lupinus albus
Lupinus angustifolius
Lupinus arboreus
Lupinus luteus
Lupinus mutabilis
Lupinus nootkatensis
Lupinus polyphyllus
Lupinus x regalis
Lupinus texensis

Lupin, often spelled lupine in the US, is the common name for members of the genus Lupinus in the family Fabaceae. Like most members of this family, Lupins can fix nitrogen from the atmosphere into ammonia, fertilizing the soil for other plants.

ITIS recognises over 150 species of lupin, and there are also numerous hybrids and cultivars. Some species, such as the Garden Lupin (Lupinus polyphyllus) and hybrids like the Rainbow Lupin (Lupinus x regalis) are common garden flowers. Others, like the Bush lupin L. arboreus are considered invasive weeds when they appear outside their native range.

Lupins have a characteristic and easily recognised leaf shape, with soft green leaves divided into five to sixteen small, finger-like leaflets that diverge from a central point. They have a long central tap root.

The Texas Bluebonnet (Lupinus texensis) and other similar species are the State flower of Texas, USA.

The Nootka Lupin (Lupinus nootkatensis) is common on the west coast of North America, and is one of the species from which the garden hybrids are derived, being valued in Britain for its tolerance of cool, wet summers.

Lupins are cultivated as forage and grain legumes. Three species of lupin, Lupinus angustifolius (blue lupin), Lupinus albus (white lupin) and Lupinus luteus (yellow lupin) are culivated for livestock and poultry feed and for human consumption. These lupins are referred to as 'sweet lupins' because they contain less toxic alkaloids than the 'bitter' varieties. Both sweet and bitter lupins can cause livestock poisioning. Lupine poisioning is a nervous syndrome caused by alkaloids in bitter lupins. Mycotoxic lupinosis is a disease caused by feeding livestock with sweet lupin material that is infected with the fungus Phomopsis leptostromiformis, the fungus produces mycotoxins called phomopsins, that cause liver damage.

Missing image
Lupinenblaetter.jpg
Lupin leaves from below

External links

  • Nitrogen Cycle (http://ghs.gresham.k12.or.us/science/ps/sci/ibbio/ecology/notes/cycles/nitrogencycle.htm)

Template:Picda:Lupin (Lupinus) de:Lupinen eo:Lupeno fr:Lupin it:Lupinus sv:Lupiner

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