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Associations

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Foodplant / parasite
conidial anamorph of Erysiphe trifolii parasitises live Lathyrus nissolia

In Great Britain and/or Ireland:
Foodplant / parasite
sporangium of Peronospora viciae parasitises live Lathyrus nissolia

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Physical Description

provided by USDA PLANTS text
Annual, Herbs, Taproot present, Nodules present, Stems erect or ascending, Stems or branches arching, spreading or decumbent, Stems less than 1 m tall, Stems solid, Stems or young twigs glabrous or sparsely glabrate, Leaves alternate, Leaves petiolate, Stipules inconspicuous, absent, or caducous, Stipules green, triangulate to lanceolate or foliaceous, Stipules persistent, Stipules free, Leaves simple, or appearing so, Leaf or leaflet margins entire, Leaflets 1, Leaves glabrous or nearly so, Leaves reduced to phyllodia, Inflorescences racemes, Inflorescence axillary, Bracts very sm all, absent or caducous, Flowers zygomorphic, Calyx 5-lobed, Calyx glabrous, Petals separate, Corolla papilionaceous, Petals clawed, Petals white, Petals ochroleucous, cream colored, Banner petal ovoid or obovate, Banner petal suborbicular, broadly rounded, Wing petals narrow, oblanceolate to oblong, Wing petals auriculate, Wing tips obtuse or rounded, Keel tips obtuse or rounded, not beaked, Stamens 9-10, Stamens diadelphous, 9 united, 1 free, Filaments glabrous, Style flattened, Style hairy, Style hairy on one side only, Style persistent in fruit, Fruit a legume, Fruit unilocular, Fruit freely dehiscent, Fruit elongate, straight, Fruit exserted from calyx, Valves twisting or coiling after dehiscence, Fruit glabrous or glabrate, Fruit 3-10 seeded, Seeds ovoid to rounded in outline, Seed surface smooth, Seeds olive, brown, or black.
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Dr. David Bogler
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Missouri Botanical Garden
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Lathyrus nissolia

provided by wikipedia EN

Lathyrus nissolia, the grass vetchling or grass pea,[1] is a species of flowering plant in the pea and bean family Fabaceae. It is native to most of Europe, Maghreb, Levant and the Caucasus. Despite its common names, it is not a grass, but belongs to the legume family Fabaceae.

Description

Grass vetchling is an annual plant, with an erect stem branching from the base, and growing to a height of about 2 feet (0.7 m). It is entirely without true leaves, leaflets or tendrils. The leaf stalk, however, is flattened out until it closely resembles a blade of grass ending in a fine point, and the stipules at its base greatly help the deception.[1]

The crimson flowers come out in June and July, and are rather small, solitary and borne on a very long footstalk. They have the ability to self-pollinate.[1]

The flowers are succeeded by long, slender, straight pods, which are at first very flat, but become cylindrical when the contained peas are fully developed.[1]

Habitat

Grassland, banks and field margins on neutral to acid soil.[2]

Distribution

The species is rare in Scotland and very localised in England and Wales, though there are signs that it is currently spreading in the United Kingdom.[2] Not recorded from Ireland.[3]

References

  1. ^ a b c d Stokoe, W.J. The Observer's Book of Wild Flowers (1965 ed.). Frederick Warne & Co. Ltd. p. 88.
  2. ^ a b Nature Spot - Grass Vetchling
  3. ^ Parnell, J. and Curtis, T. 2012 Webb's An Irish Flora Cork University Press ISBN 978-185918-4783
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Lathyrus nissolia: Brief Summary

provided by wikipedia EN

Lathyrus nissolia, the grass vetchling or grass pea, is a species of flowering plant in the pea and bean family Fabaceae. It is native to most of Europe, Maghreb, Levant and the Caucasus. Despite its common names, it is not a grass, but belongs to the legume family Fabaceae.

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