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Lathyrus

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Lathyrus
Grass Vetchling, Lathyrus nissolia
Scientific classification
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Lathyrus

Species

See text.

Lathyrus (Template:Pron-en)[1] is a genus of flowering plant species known as sweet peas and vetchlings. Lathyrus is in the legume family Fabaceae and contains approximately 160 species. They are native to temperate areas, with a breakdown of 52 species in Europe, 30 species in North America, 78 in Asia, 24 in tropical East Africa, and 24 in temperate South America.[2] There are annual and perennial species which may be climbing or bushy. This genus has numerous sections, including Orobus, which was once a separate genus.[3]

Genus

The genus includes the garden sweet pea (Lathyrus odoratus) and the perennial everlasting pea (Lathyrus latifolius). Flowers on these cultivated species may be rose, red, maroon, pink, white, yellow, purple or blue and some are bicolored; they are also fragrant, which makes them a very popular garden plant. Cultivated species are susceptible to fungal infections including downy and powdery mildew. Lathyrus species are used as food plants by the larvae of some Lepidoptera species including Grey Chi, Latticed Heath (both recorded on Meadow Vetchling) and Chionodes braunella.

Other species

Other species are grown for food, including L. sativus and L. cicera, and less commonly L. ochrus and L. clymenum. L. tuberosus is grown as a root vegetable for its starchy edible tuber.

The seeds of some Lathyrus species contain a toxic amino acid and if eaten in large quantities can cause lathyrism, a serious disease.[4]

Selected species

Notes

  1. ^ Sunset Western Garden Book, 1995:606–607
  2. ^ Asmussen, Conny B; Liston, Aaron (1998). "Chloroplast DNA Characters, Phylogeny, and Classification of Lathyrus (Fabaceae)". American Journal of Botany. 85 (3). Botanical Society of America: 387. doi:10.2307/2446332. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
  3. ^ Fred, Edwin Broun; Baldwin, Ira Lawrence; McCoy, Elizabeth (1932). Root Nodule Bacteria and Leguminous Plants. UW-Madison Libraries Parallel Press. p. 142. ISBN 1-893311-28-7.{{cite book}}: CS1 maint: multiple names: authors list (link)
  4. ^ Mark V. Barrow; Charles F. Simpson; Edward J. Miller (1974). "Lathyrism: A Review". The Quarterly Review of Biology. 49 (2): 101–128. doi:10.1086/408017. PMID 4601279.{{cite journal}}: CS1 maint: multiple names: authors list (link)