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Lathyrus nervosus - Lam.
                 
Common Name Lord Anson's Pea
Family Fabaceae or Leguminosae
USDA hardiness 8-11
Known Hazards Although no records of toxicity have been found for this plant, the seed of some species in this genus contain a toxic amino acid that can cause a severe disease of the nervous system known as 'lathyrism' if they are eaten in large amounts (although small quantities are said to be nutritious)[65, 76]. Great caution is advised.
Habitats Coastal sands, gravel and open grassland[69, 133].
Range S. America - Chile, Argentina, Uruguay, Brazil.
Edibility Rating  
Other Uses  
Weed Potential No
Medicinal Rating  
Care
Half Hardy Moist Soil Full sun

Summary

Lathyrus nervosus Lord Anson


http://www.flickr.com/photos/peganum/
Lathyrus nervosus Lord Anson
http://www.flickr.com/photos/peganum/
   
Physical Characteristics
 icon of manicon of flower
Lathyrus nervosus is a PERENNIAL CLIMBER growing to 0.5 m (1ft 8in).
It is hardy to zone (UK) 9. It is in flower from Jun to September, and the seeds ripen from Aug to October. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Insects.It can fix Nitrogen.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It prefers moist soil. The plant can tolerates strong winds but not maritime exposure.

Synonyms
L. magellanicus. Lam.

Habitats
 Cultivated Beds;
Edible Uses
Edible Parts: Seed.
Edible Uses:

Seed - cooked[2, 105, 133]. Some caution is advised, see the notes above on toxicity.
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.



None known
Other Uses
None known
Cultivation details
An easily grown plant, succeeding in any moderately good garden soil but preferring a position in full sun[200]. Prefers a rich soil in a cool position in sun or semi-shade with plenty of moisture in the growing season[187]. Plants are hardy to about -10°c[187]. A very ornamental plant[1] it is a short-lived perennial[175]. Plants scramble through other plants, supporting themselves by means of tendrils[188, 219]. There has been much confusion in the naming of this plant, two separate names (L. nervosus and L. magellanicus) having been given to what was believed to be different plants. According to one report, L. magellanicus is a distinct species with minor botanical differences and is somewhat hardier than L. nervosus[133]. The two species now seem to have been united under this name[200]. Young plants are extremely attractive to rabbits[K]. This species has a symbiotic relationship with certain soil bacteria, these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[200].
Propagation
Pre-soak the seed for 24 hours in warm water and then sow in early spring in a cold frame[200]. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer. If you have sufficient seed, then it can also be sown in situ in mid spring[200].
Other Names
Found In
Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status
IUCN Red List of Threatened Plants Status :
Related Plants
Latin NameCommon NameEdibility RatingMedicinal Rating
Lathyrus alatus 10
Lathyrus aphacaYellow-Flowered Pea11
Lathyrus ciceraChickling Vetch, Red pea10
Lathyrus davidii 10
Lathyrus japonicusBeach Pea, Smallflower beach pea20
Lathyrus japonicus maritimusBeach Pea20
Lathyrus latifoliusPerennial Sweet Pea, Perennial pea10
Lathyrus linifolius montanusBitter Vetch20
Lathyrus ochroleucasCream Peavine11
Lathyrus ochrusCyprus Vetch10
Lathyrus odoratusSweet Pea, Wild Pea,Vetchling10
Lathyrus ornatusBush Vetchling11
Lathyrus palustrisSlenderstem Peavine, Marsh pea10
Lathyrus polymorphusManystem Peavine, Hoary pea10
Lathyrus pratensisMeadow Vetchling01
Lathyrus quinquenervius 10
Lathyrus sativusChickling Pea, White pea21
Lathyrus tuberosusEarthnut Pea, Tuberous sweetpea50
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Expert comment
 
Author
Lam.
Botanical References
69200
Links / References
For a list of references used on this page please go here
Readers comment
 
Elizabeth H.
Mark Rowland Tue Feb 13 2007
L. magellanicus is a distinct species with very different leaves and flowers. See Norton,Sylvia(1996):Lathyrus - Cousins of the Sweet Pea. NCCPG. L. nervosus is not really a climber and is better sprawling downwards. It dislikes winter wet, and the flowers have a fragrance resembling kerosine.

Owl's Acre Sweet Peas Photo, information, seed for sale

Elizabeth H.
Ken Fern, Plants for a Future Sun Feb 18 2007
Thank you Mark for your comments and your excellent web site. Having reviewed the current literature about these species, I must agree with you that they are best treated as distinct species. The database will be amended accordingly in the near future.
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Subject : Lathyrus nervosus  

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