Lathyrus japonicus

Lathyrus japonicus

Taxobox
name = "Lathyrus japonicus"


image_width = 240px
regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
ordo = Fabales
familia = Fabaceae
subfamilia = Faboideae
tribus = Vicieae
genus = "Lathyrus"
species = "L. japonicus"
binomial = "Lathyrus japonicus"
binomial_authority = Willd.

"Lathyrus japonicus" (syn. "L. maritimus"; common names Sea Pea, Beach Pea, Circumpolar Pea, Sea Vetchling) is a legume native to temperate coastal areas of Asia, Europe, North and South America.

It is a herbaceous perennial plant growing trailing stems to 50-80 cm long, typically on sand and gravel storm beaches. The leaves are waxy glaucous green, 5-10 cm long, pinnate, with 2-5 pairs of leaflets, the terminal leaflet usually replaced by a twining tendril. The flowers are 14-22 mm broad, with a dark purple standard petal and paler purple wing and keel petals; they are produced in racemes of 2-7 together.

The unusually extensive native range is explained by the ability of the seeds to remain viable while floating in sea water for up to 5 years, enabling the seeds to drift nearly worldwide. Germination occurs when the hard outer seed coat is abraded by waves on sand and gravel.

The pods can be eaten but like many members of the genus "Lathyrus" they contain β-oxalyl-"L"-α,β-diaminopropionic acid, which can cause paralysis called lathyrism. The leaves of the plant are used in Chinese traditional medicine.

References

* [http://linnaeus.nrm.se/flora/di/faba/lathy/lathjapv.jpgDen virtuella floran: "Lathyrus japonicus" distribution]


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  • Lathyrus japonicus — ID 45065 Symbol Key LAJA Common Name beach pea Family Fabaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AK, CA, CT, IL, IN, MA, ME, MI, MN, NH, NJ, NY, OH, OR, PA, RI, VT, WA, WI Growth… …   USDA Plant Characteristics

  • Lathyrus japonicus — noun wild pea of seashores of north temperate zone having tough roots and purple flowers and useful as a sand binder • Syn: ↑beach pea, ↑sea pea, ↑Lathyrus maritimus • Hypernyms: ↑wild pea • Member Holonyms: ↑Lathyrus, ↑ …   Useful english dictionary

  • Lathyrus japonicus var. japonicus — ID 45067 Symbol Key LAJAJ Common Name beach pea Family Fabaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AK, MI Growth Habit Vine, Forb/herb Duration …   USDA Plant Characteristics

  • Lathyrus japonicus var. acutifolius — ID 45066 Symbol Key LAJAA2 Common Name N/A Family Fabaceae Category Dicot Division Magnoliophyta US Nativity Cultivated, or not in the U.S. US/NA Plant Yes State Distribution N/A Growth Habit N/A …   USDA Plant Characteristics

  • Lathyrus japonicus var. maritimus — ID 45069 Symbol Key LAJAM Common Name beach pea Family Fabaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AK, CA, CT, IL, IN, MA, ME, MI, MN, NH, NJ, NY, OH, OR, PA, RI, VT, WA, WI Growth… …   USDA Plant Characteristics

  • Lathyrus japonicus var. parviflorus — ID 45076 Symbol Key LAJAP Common Name smallflower beach pea Family Fabaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution OH Growth Habit Vine, Forb/herb Durati …   USDA Plant Characteristics

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  • Lathyrus japonicus var. pubescens — ID 45079 Symbol Key LAJAP3 Common Name downy beach pea Family Fabaceae Category Dicot Division Magnoliophyta US Nativity Native to U.S. US/NA Plant Yes State Distribution AK Growth Habit Vine, Forb/herb Duration …   USDA Plant Characteristics

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