Rumex hastatus
a perennial member of the Rumex genus in the family Polygonaceae.
Taxonomy and growth
- Family
- Polygonaceae
- Genus
- Rumex
- Life cycle
- perennial
- Height
- 1 m
- Fertility
- Wind
- Flower type
- hermaphrodite
- Pollinators
- Wind
Uses
Toxicity
Toxicity warning. The historical record reports a hazard for this plant. Do not use it to decide which parts are safe to eat or use medicinally.
This section contains historical Plants For A Future notes marked noncommercial.
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[6].
Edible uses
This section contains historical Plants For A Future notes marked noncommercial.
Tender young leaves and shoots - raw or cooked[7]. A sour, acid flavour, it is eaten as a sorrel[1][2][4].
- Plant part
- Leaves
Medicinal uses
Historical medicinal uses. These records describe reported uses. They do not establish safety or effectiveness. Ask a qualified health professional before using any plant medicinally.
This section contains historical Plants For A Future notes marked noncommercial.
The juice of the plant is astringent and is used in the treatment of bloody dysentery[7]. The fresh tuber is chewed to relieve aches in the throat[7].
- Product or use
- Astringent
Material uses
This section contains historical Plants For A Future notes marked noncommercial.
The root contains 25 - 30% tannin[7]. 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[3].
- Product or use
- Dye
- Product or use
- Tannin
Environment
- Range
- E. Asia - Himalayas.
- Habitat
- Wasteland, dry slopes and rocks to elevations of 2400 metres[2]. Shady slopes or dry streambeds at elevations of 1000 - 2600 metres in Nepal[7].
- Light
- full sun
- Shade tolerance
- light shade
- Water
- moderate
- Soil textures
- sandy, loamy, clay
- Soil pH
- acid, neutral, alkaline
- Drainage
- well drained
- Tolerates Nutritionally Poor Soil
- No
- Drought
- intolerant
Propagation
This section contains historical Plants For A Future notes marked noncommercial.
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.
Cultivation
This section contains historical Plants For A Future notes marked noncommercial.
We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in many parts of this country. It is likely to succeed in dry soils. The following notes are based on the general needs of the genus. Succeeds in most soils but prefers a deep fertile moderately heavy soil that is humus-rich, moisture-retentive but well-drained and a position in full-sun or part shade[5].
References
Tanaka. T. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing 1976-00-00
Gamble. J. S. A Manual of Indian Timbers. Bishen Singh Mahendra Pal Singh 1972-00-00
Grae. I. Nature's Colors - Dyes from Plants. MacMillan Publishing Co. New York. 1974-00-00 ISBN 0-02-544950-8
Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books 1984-00-00 ISBN 3874292169
Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992-00-00 ISBN 0-333-47494-5
Bown. D. Encyclopaedia of Herbs and their Uses. Dorling Kindersley, London. 1995-00-00 ISBN 0-7513-020-31
Manandhar. N. P. Plants and People of Nepal Timber Press. Oregon. 2002-00-00 ISBN 0-88192-527-6