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| USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 3: 550. |
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Summary
Physical Characteristics
Cirsium undulatum is a PERENNIAL growing to 0.6 m (2ft). The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, flies, Lepidoptera (Moths & Butterflies), beetles. The plant is self-fertile.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers dry or moist soil.
UK Hardiness Map
US Hardiness Map
Synonyms
Plant Habitats
Cultivated Beds;
Edible Uses
Edible Parts: Oil Root Stem
Edible Uses: Oil
Root - raw or cooked[46, 61, 105, 161, 257]. One of the more palatable thistles, it is used as a vegetable or can be added to soups and stews[212, 257]. It can be dried and stored for winter use[257]. The root is likely to be rich in inulin, a starch that cannot be digested by humans. This starch thus passes straight through the digestive system and, in some people, ferments to produce flatulence[K]. Stems - peeled and eaten raw or cooked[161, 212, 257]. One of the more palatable thistles[212].
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.
Ophthalmic VD
A decoction of the root has been used in the treatment of gonorrhoea[257]. A cold infusion of the root has been used as a wash for eye diseases[257].
References More on Medicinal Uses
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Other Uses
Oil
The seed of all species of thistles yields a good oil by expression[4]. No details of potential yields etc are given[K].
Special Uses
References More on Other Uses
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. An easily grown plant, succeeding in any ordinary garden soil in a sunny position[200].
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
Type a value in the Celsius field to convert the value to Fahrenheit:
Fahrenheit:
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Plant Propagation
Seed - sow early spring or autumn in situ. Germination usually takes place within 2 - 8 weeks at 20°c[164].
Other Names
If available other names are mentioned here
Gray thistle,
Wavyleaf thistle, Wavy-Leaved Thistle, Tracy's thistle
Native Range
NORTHERN AMERICA: Canada (Alberta, British Columbia, Manitoba, Saskatchewan), United States (Indiana, Michigan, Illinois, Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, Oklahoma, South Dakota, Wisconsin, Colorado, Idaho, Montana, Washington, Wyoming, New Mexico, Texas, Arizona, California, Utah), Mexico (Chihuahua, Coahuila de Zaragoza, Durango, Sonora)
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.
This plant can be weedy or invasive. It is a weed in California and Northwestern Mexico. Know as a Noxious Weed in: Arkansas, California and Iowa, USA
Conservation Status
IUCN Red List of Threatened Plants Status : This taxon has not yet been assessed.
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.
Expert comment
Author
(Nutt.)Spreng.
Botanical References
43235
Links / References
For a list of references used on this page please go here
Readers comment
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Subject : Cirsium undulatum
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