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Thalictrum polycarpum - (Torr.)Watson.

Common Name Meadowrue
Family Ranunculaceae
USDA hardiness Coming soon
Known Hazards Although no records of toxicity have been found for this plant, it belongs to a family that includes many poisonous plants so some caution is advised.
Habitats Mixed evergreen and oak forests, mainly below 750 metres in California[71]. Streamsides and other moist places, forests, and open woodlands at elevations of 600 - 3100 metres[270].
Range South-western N. America - Oregon to California, Utah and Mexico..
Edibility Rating    (0 of 5)
Other Uses    (1 of 5)
Weed Potential No
Medicinal Rating    (1 of 5)
Care (info)
Moist Soil Semi-shade Full sun
Thalictrum polycarpum Meadowrue


Brother Alfred Brousseau @ USDA-NRCS PLANTS Database
Thalictrum polycarpum Meadowrue
J.S. Peterson @ USDA-NRCS PLANTS Database

 

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Summary


Physical Characteristics

 icon of manicon of flower
Thalictrum polycarpum is a PERENNIAL growing to 1.8 m (6ft). It is in flower from April to June. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects, wind.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

UK Hardiness Map US Hardiness Map

Synonyms

Thalictrum fendleri Engelm. ex A. Gray var. polycarpum

Habitats

Woodland Garden Sunny Edge; Dappled Shade; Shady Edge;

Edible Uses

None known

References   More on Edible Uses

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Analgesic  Poultice

The crushed stem and leaf juice has been used as a wash in the treatment of headaches[257]. A poultice of the pounded plant has been applied to sprains[257].

References   More on Medicinal Uses

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Other Uses

Dye

A bright yellow dye is obtained from the whole plant[168].

Special Uses

References   More on Other Uses

Cultivation details

We have almost no 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 the country. The following notes are based on the general needs of the genus. Succeeds in most fairly good soils in sun or semi-shade[1, 111]. Members of this genus are rarely if ever troubled by browsing deer[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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Propagation

Seed - best sown as soon as it is ripe in the autumn in a cold frame[K]. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer. The seed can also be sown in an outdoor seedbed in spring[111]. Plant them into their permanent positions the following spring. Division in spring as new growth commences or in the autumn[111]. Larger divisions can be planted out direct into their permanent positions. We have found that it is best to pot up smaller divisions and grow them on in light shade in a greenhouse or cold frame until they are growing away well. Plant them out in the summer or the following spring.

Other Names

If available other names are mentioned here

Native Plant Search

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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
Thalictrum actaeifolium Perennial0.6 -  LMHSNM10 
Thalictrum aquilegiifolium Perennial1.0 5-9  LMHSNM11 
Thalictrum collinumLesser meadow-ruePerennial0.0 0-0  LMHSNM01 
Thalictrum foliolosum Perennial2.5 -  LMHSNM02 
Thalictrum minusLesser Meadow RuePerennial1.5 5-9  LMHSNM112
Thalictrum simplex galioides Perennial1.0 6-9  LMHSNM01 

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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Author

(Torr.)Watson.

Botanical References

71270

Links / References

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Subject : Thalictrum polycarpum  
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