Rumex daiwoo -

Family:	Polygonaceae
Habit:	Perennial
Height:	1
Synonyms:	R. madaio. Makino.
Range:	E. Asia - Japan.

Rumex daiwoo () is a Perennial which grows to a height of 1m . It has a hardness rating of 0.
The flowers from this plant are hermaphrodite (has both male and female organs) and they are pollinated by Wind

Soil Information

Rumex daiwoo will grow in light (sandy),medium (loamy),hard (clay) soil. It is not necessary for the soil to be well drained.
The soil prefers the following PH / acid levels :
- pH of less than 6, Acidic soils
- pH between 6 and 8, Neutral soils
- pH greater than 8, Basic soils
Rumex daiwoo prefers soils

Ideal Planting Locations

Rumex daiwoo can grow in semi or areas with no shade.

Wet meadows in lowland all over Japan[58].

Planting places suited to this plant described below.

• A bog garden plant

Cultivation Details

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. 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[200].

Edible Uses*

* See disclaimer
Edible Rating: 1/5
Leaves - cooked[105, 177]. Seed - cooked. Used to make a gruel[105, 177].

• Leaves -
• Seed - includes nuts, cereals, peas and beans.

Medicinal Uses*

* See disclaimer
Medicinal Rating: 2/5
The root is anticoagulant, antipruritic, antipyretic, diuretic, laxative[147, 218].

• Anticoagulant - Removes blood clots.
• Antipruritic - Treats itching of the skin.
• Antipyretic - Treats fevers. See Febrifuge.
• Diuretic - Acts on the kidneys, promoting the flow of urine.
• Laxative - Stimulates bowel movements in a fairly gentle manner.

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.

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[238].

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[168]. There is a report that the plant is used to kill bugs, but no details are given[147, 218].

• Dye - Plants that provide dyes.
• Insecticide - Kills insects.

Cultivars

no recorded cultivars

References

Flora of Japan. (English translation)
Ohwi. G.
Author: Ohwi. G.
Rating:
Publisher : The standard work. Brilliant, but not for the casual reader.
Date of Publication : 1965

DISCLAIMER: All information published on AussieGardening.com.au is for entertainment purposes only. Readers are encouraged to confirm the information contained here with other sources. The information is not intended to replace medical advice offered by doctors or dietary advice by dieticians. AussieGardening.com.au will not be liable for any direct, indirect, consequential, special, exemplary, or other damages arising therefrom.