Sea Pea is a
native
perennial plant of the UK, typically found growing in shingle beaches and coastal areas, to a mature height of up to 60cm.
Sea Pea, as the name suggests, is a salt-tolerant maritime plant and a member of the Pea/ Bean family (Fabaceae). Note that despite the name 'Pea' the plant is not a direct relative of the garden pea (Pisum sativum) and the seeds of this plant should not be eaten, as they are poisonous (see footnote under 'Concerns'). The Sea Pea has conspicuous attractive flowers, comprised of: a large purple 'standard' (upright petal); two white 'wings' (side petals); and a concealed lilac 'keel' (two fused lower-centre petals). These are borne in a cluster at the top, and to one side, of an elevated flower stem.
Botanic classification and naming: Sea Pea is a member of the Pea (Fabaceae) family. The genus name
'Lathyrus' identifies the plant as a Vetchling and its species name 'japonicus' means 'Japanese plant'.
Concerns: This plant, but especially the seed, contains a toxic amino-acid affecting the nervous system, causing a serious condition affecting muscle control known as 'Lathyrism'.
Benefits: Sea Pea flowers are pollinated by Bumble bees, Mason bees, butterflies and moths. The plant also has root nodules that host nitrogen-fixing bacteria. These make atmospheric nitrogen available to feed the plant and enrich the soil.
Benefits to wildlife are also indicated with orange icons in the plant profile bar at the top.
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