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Anemone rivularis - Buch.-Ham. ex DC.

Common Name Cao Yu Mei
Family Ranunculaceae
USDA hardiness 6-9
Known Hazards Although no specific mention has been seen for this species, many members of this genus contain protoanemonin, an irritating acrid oil that is an enzymatic breakdown product of the glycoside ranunculin. While protoanemonin can cause severe topical and gastrointestinal irritation, it is unstable and changes into harmless anemonin when plants are dried or heated[4, 10, 19, 65, 270].
Habitats Meadows, forest clearings, bunds between paddy fields, streamsides and hedges[187]. Under alpine brush in the Himalayas, 4000 - 5000 metres[91].
Range E. Asia - Tibet, Himalayas, Sri Lanka.
Edibility Rating    (1 of 5)
Other Uses    (0 of 5)
Weed Potential No
Medicinal Rating    (2 of 5)
Care (info)
Fully Hardy Moist Soil Full shade Semi-shade Full sun
Anemone rivularis Cao Yu Mei


Anemone rivularis Cao Yu Mei

 

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Summary


Physical Characteristics

 icon of manicon of flower
Anemone rivularis is a PERENNIAL growing to 0.6 m (2ft) by 0.3 m (1ft in).
See above for USDA hardiness. It is hardy to UK zone 7. It is in flower from April to July. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, flies. The plant is self-fertile.
Suitable for: light (sandy) and medium (loamy) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in full shade (deep woodland) semi-shade (light woodland) or no shade. It prefers moist soil.

UK Hardiness Map US Hardiness Map

Synonyms

Plant Habitats

Woodland Garden Dappled Shade; Shady Edge; not Deep Shade;

Edible Uses

Edible Parts: Seed
Edible Uses:

Seeds - roasted and pickled[272].

References   More on Edible Uses

Medicinal Uses

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Analgesic  Antidote  Antiemetic  Vermifuge

The plant is said to be antiemetic and vermifuge[91]. It is said to warm the stomach and stop vomiting. A paste made from the plant is used in Nepal to treat coughs and fevers[272]. The juice of the leaf, mixed with water, is inhaled through each nostril to treat sinusitis[272]. The seeds are used in Tibetan medicine, they are said to have a bitter and acrid taste with a heating potency[241]. Analgesic and antidote, they are used in the treatment of rotting tissues, snake poisoning and stomach/intestinal pain from worm infestation[241]. A decoction of the root is applied externally to cuts and wounds[272].

References   More on Medicinal Uses

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Other Uses

None known

Special Uses

References   More on Other Uses

Cultivation details

Easily grown in a moist well-drained soil in sun or semi-shade[187]. Succeeds in ordinary garden soil but prefers a rich sandy loam[1]. Requires a damp soil, doing well by water[1, 111]. A very ornamental plant[1], it is hardy to about -20°c[187]. This species is closely related to A. narcissiflora[233]. Plants seem to be immune to the predations of rabbits[233]. A greedy plant, inhibiting the growth of nearby plants, especially legumes[54].

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

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Plant Propagation

Seed - best sown in a cold frame as soon as it is ripe in the summer[1]. Surface sow or only just cover the seed and keep the soil moist. Sow stored seed as soon as possible in late winter or early spring, it requires 3 - 5 weeks cold stratification. The seed usually germinates in 1 - 6 months at 20°c[133]. When large enough to handle, prick the seedlings out into individual pots and grow them on for at least their first year in a lightly shaded place in a greenhouse. When large enough, plant them out into their permanent positions in the spring. Division in late summer after the plant dies down.

Other Names

If available other names are mentioned here

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Found In

Countries where the plant has been found are listed here if the information is available

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 NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Anemone altaica Perennial0.2 -  LMHSM01 
Anemone canadensisCanadian AnemonePerennial0.6 3-7 MLMHSM02 
Anemone cylindricaCandle AnemonePerennial0.5 4-8  LMHSM02 
Anemone flaccida Perennial0.1 5-9  LMHFSM10 
Anemone narcissifloraNarcissus-Flowered Anemone, Narcissus anemonePerennial0.6 3-7  LMHSNM10 
Anemone nemorosaWood Anemone, European thimbleweedPerennial0.2 4-8 FLMHFSNDM01 
Anemone nikoensis Perennial0.3 5-9  LMHFSNDM10 
Anemone obtusiloba Perennial0.3 4-8  LMHNM01 
Anemone quinquefoliaWind Flower, Wood anemone, Twoleaf anemone, NightcapsPerennial0.3 6-9  LMHFSM01 
Anemone stolonifera Perennial0.2 -  LMHSNM10 
Anemone virginianaTall ThimbleweedPerennial0.6 4-8  LMHFSM01 
Anemone vitifolia Perennial1.0 4-8  LMSM021
Anemonella thalictroidesRue-AnemonePerennial0.1 4-7 SLFSM21 
Pulsatilla patensPasque Flower, Eastern pasqueflower, Cutleaf anemonePerennial0.5 4-8  LMNM02 

Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.

 

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Buch.-Ham. ex DC.

Botanical References

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Subject : Anemone rivularis  
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