Common Name:

General Information

Rumex graminifolius is a herbaceous perennial plant with creeping rhizomes and elongated underground stolons; it produces several erect or ascending stems that can grow around 7 - 25cm tall[].
The plant is harvested from the wild for local use as a food.

Known Hazards

Plants can contain quite high levels of oxalic acid, which is what gives the leaves of many members of this genus an acid-lemon flavour. Perfectly alright in small quantities, the leaves should not be eaten in large amounts since the oxalic acid can lock-up other nutrients in the food, especially calcium, thus causing mineral deficiencies. The oxalic acid content will be reduced if the plant is cooked. People with a tendency to rheumatism, arthritis, gout, kidney stones or hyperacidity should take especial caution if including this plant in their diet since it can aggravate their condition[].

Botanical References

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Range

Arctic and subarctic regions of northwest N. America, Greenland, northern Europe and northern Asia

Habitat

Coastal rocks and arctic regions in Newfoundland[]. Sandy places, dunes, riverside terraces, gravels, in the Arctic Region and the alpine zone; at elevations up to 400 metres[, ].

Properties

Edibility Rating
Habit	Perennial
Height	0.10 m
Pollinators	Wind
Self-fertile	No
Cultivation Status	Wild

Cultivation Details

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Species in this genus generally succeed in a variety of soils, but they prefer deep fertile moderately heavy soils that are humus-rich, moisture-retentive and also well-drained, with a position in full-sun or part shade[].
Dioecious, male and female plants must be grown if seed is required[].
Being wind -pollinated, Rumex species usually hybridize readily, especially with other members of the genus they are more closely related to[].

Edible Uses

Leaves - raw[].

Medicinal

None known

Other Uses

Although no specific mention has been made for this species, dark green to brown and dark grey dyes can be obtained from the roots of many species in this genus, They do not need a mordant[].

Propagation

Seed - sow spring in a cold frame. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer.
Division in spring.