| Habitats
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Woodland Garden Sunny Edge; Meadow; Cultivated Beds;
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| Edible Uses
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Edible Parts: Leaves; Root; Seed; Stem.
Root - raw or cooked[2, 7, 9, 14, 179]. Very young roots can be eaten raw, but older roots are normally cooked[206]. They can be up to 120cm long and 2.5cm wide at the top, but are best harvested when no more than 60cm long[206]. Old and very long roots are apt to become woody at the core[206]. Although it does not have much flavour the root can absorb other flavours[116]. Young roots have a mild flavour, but this becomes stronger as the root gets older[206]. The root is white but discolours rapidly when exposed to the air[206]. Roots can be dried for later use[213]. They contain about 2.5% protein, 0.14% fat, 14.5% carbohydrate, 1.17% ash[179]. The root contains about 45% inulin[240]. Inulin is a starch that cannot be digested by the human body, and thus passes straight through the digestive system. In some people this starch will cause fermentation in the gut, resulting in wind[K]. Inulin can be converted into a sweetener that is suitable for diabetics to eat[K].
Young leaves - raw or cooked[9, 12, 14, 62]. A mucilaginous texture[179]. The leaves contain about 3.5% protein, 1.8% fat, 19.4% carbohydrate, 8.8% ash[179].
Young stalks and branches - raw or cooked[2, 9, 52, 55, 62]. Used like asparagus or spinach[12, 183]. They taste best if the rind is removed[85, 117]. The leaf stalks can be parboiled and used as a substitute for cardoons[183].
The pith of the flowering stem can be eaten raw in salads, boiled or made into confections[4, 183]. A delicate vegetable, somewhat like asparagus in flavour[4].
The seeds can be sprouted and used like bean-sprouts[12, 52, 183].
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| Composition
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Figures in grams (g) or miligrams (mg) per 100g of food. |
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Leaves (Fresh weight) |
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- 0 Calories per 100g
- Water : 0%
- Protein: 3.5g; Fat: 1.8g; Carbohydrate: 19.4g; Fibre: 0g; Ash: 8.8g;
- Minerals - Calcium: 0mg; Phosphorus: 0mg; Iron: 0mg; Magnesium: 0mg; Sodium: 0mg; Potassium: 0mg; Zinc: 0mg;
- Vitamins - A: 0mg; Thiamine (B1): 0mg; Riboflavin (B2): 0mg; Niacin: 0mg; B6: 0mg; C: 0mg;
- Reference: [ ]
- Notes:
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| Medicinal Uses
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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.
Alterative; Antibacterial; Antifungal; Antiphlogistic; Aperient; Blood purifier; Carminative; Cholagogue; Depurative; Diaphoretic; Diuretic;
Hypoglycaemic; Stomachic.
Burdock is one of the foremost detoxifying herbs in both Chinese and Western herbal medicine[254]. The dried root of one year old plants is the official herb, but the leaves and fruits can also be used[4]. It is used to treat conditions caused by an 'overload' of toxins, such as throat and other infections, boils, rashes and other skin problems[254]. The root is thought to be particularly good at helping to eliminate heavy metals from the body[254]. The plant is also part of a North American formula called essiac which is a popular treatment for cancer. Its effectiveness has never been reliably proven or disproven since controlled studies have not been carried out. The other herbs included in the formula are Rumex acetosella, Ulmus rubra and Rheum palmatum[254].
The plant is antibacterial, antifungal, carminative[9, 21, 147, 165, 176]. It has soothing, mucilaginous properties and is said to be one of the most certain cures for many types of skin diseases, burns, bruises etc[4, 244]. It is used in the treatment of herpes, eczema, acne, impetigo, ringworm, boils, bites etc[244]. The plant can be taken internally as an infusion, or used externally as a wash[244]. Use with caution[165].
The roots of one-year old plants are harvested in mid-summer and dried. They are alterative, aperient, blood purifier, cholagogue, depurative, diaphoretic, diuretic and stomachic[218, 222].
The seed is alterative, antiphlogistic, depurative, diaphoretic and diuretic[218]. Recent research has shown that seed extracts lower blood sugar levels[238]. The seed is harvested in the summer and dried for later use[254].
The crushed seed is poulticed onto bruises[222]. The leaves are poulticed onto burns, ulcers and sores[222].
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| Other Uses
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Hair.
The juice of the plant, when used as a friction, is said to have a stimulating action against baldness[7].
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| Cultivation details
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Succeeds in most soils when grown in partial shade[200]. Prefers a moist neutral to alkaline soil[238] and a sunny position in a heavy soil[22]. Plants are best grown in a light well-drained soil if the roots are required for culinary use[200, 206]. Tolerates a pH in the range 4.6 to 7.8.
The top growth dies back at temperatures a little above freezing, but the roots tolerate much lower temperatures[206] and can be left in the ground all winter to be harvested as required.
Burdock is cultivated for its edible root in Japan, there are some named varieties[183]. Spring-sown seed produces edible roots in late summer and autumn, whilst autumn sown crops mature in the following spring or early summer[206].
Although the plants are quite large, it is best to grow them fairly close together (about 15cm apart, or in rows 30cm apart with the plants 5 - 8cm apart in the rows) since this encourages the development of long straight roots[206].
The seed head has little hooked prickles and these attach themselves to the hairs or clothing of passing creatures and can thus be carried for some considerable distance from the parent plant[4]. The plants usually self-sow freely[238].
The flowers are very attractive to bees and butterflies[206].
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| Propagation
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Seed - best sown in situ in the autumn[200]. The seed can also be sown in spring[206]. Germination can be erratic, it is best to sow the seed in trays and plant out the young plants before the tap-root develops[206]. Seed requires a minimum temperature of 10°c, but a temperature of 20 - 25°c is optimum[206]. Germination rates can be improved by pre-soaking the seed for 12 hours or by scarification[206]. They germinate best in the light[206]. The autumn sowing should be made as late as possible because any plants with roots more than 3mm in diameter in the spring will quickly run to seed if cold temperatures are followed by daylengths longer than 12½ hours[206].
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| Botanical References
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| 17200
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| Links / References
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[K] Ken Fern Notes from observations, tasting etc at Plants For A Future and on field trips.
| [2]Hedrick. U. P. Sturtevant's Edible Plants of the World.
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| Lots of entries, quite a lot of information in most entries and references.
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| [4]Grieve. A Modern Herbal.
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| Not so modern (1930's?) but lots of information, mainly temperate plants.
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| [7]Chiej. R. Encyclopaedia of Medicinal Plants.
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| Covers plants growing in Europe. Also gives other interesting information on the plants. Good photographs.
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| [9]Launert. E. Edible and Medicinal Plants.
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| Covers plants in Europe. a drawing of each plant, quite a bit of interesting information.
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| [12]Loewenfeld. C. and Back. P. Britain's Wild Larder.
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| A handy pocket guide.
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| [14]Holtom. J. and Hylton. W. Complete Guide to Herbs.
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| A good herbal.
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| [21]Lust. J. The Herb Book.
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| Lots of information tightly crammed into a fairly small book.
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| [22]Sholto-Douglas. J. Alternative Foods.
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| Not very comprehensive, it seems more or less like a copy of earlier writings with little added.
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| [52]Larkcom. J. Salads all the Year Round.
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| A good and comprehensive guide to temperate salad plants, with full organic details of cultivation.
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| [55]Harris. B. C. Eat the Weeds.
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| Interesting reading.
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| [62]Elias. T. and Dykeman. P. A Field Guide to N. American Edible Wild Plants.
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| Very readable.
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| [85]Harrington. H. D. Edible Native Plants of the Rocky Mountains.
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| A superb book. Very readable, it gives the results of the authors experiments with native edible plants.
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| [116]Brooklyn Botanic Garden Oriental Herbs and Vegetables, Vol 39 No. 2.
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| A small booklet packed with information.
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| [117]Rosengarten. jnr. F. The Book of Edible Nuts.
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| A very readable and comprehensive guide. Well illustrated.
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| [147]? A Barefoot Doctors Manual.
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| A very readable herbal from China, combining some modern methods with traditional chinese methods.
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| [165]Mills. S. Y. The Dictionary of Modern Herbalism.
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| An excellent small herbal.
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| [176]Yeung. Him-Che. Handbook of Chinese Herbs and Formulas.
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| An excellent Chinese herbal giving information on over 500 species. Rather technical and probably best suited to the more accomplished user of herbs.
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| [179]Reid. B. E. Famine Foods of the Chiu-Huang Pen-ts'ao.
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| A translation of an ancient Chinese book on edible wild foods. Fascinating.
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| [183]Facciola. S. Cornucopia - A Source Book of Edible Plants.
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| Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
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| [200]Huxley. A. The New RHS Dictionary of Gardening. 1992.
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| Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
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| [206]Larkcom J. Oriental Vegetables
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| Well written and very informative.
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| [213]Weiner. M. A. Earth Medicine, Earth Food.
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| A nice book to read though it is difficult to look up individual plants since the book is divided into separate sections dealing with the different medicinal uses plus a section on edible plants. Common names are used instead of botanical.
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| [218]Duke. J. A. and Ayensu. E. S. Medicinal Plants of China
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| Details of over 1,200 medicinal plants of China and brief details of their uses. Often includes an analysis, or at least a list of constituents. Heavy going if you are not into the subject.
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| [222]Foster. S. & Duke. J. A. A Field Guide to Medicinal Plants. Eastern and Central N. America.
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| A concise book dealing with almost 500 species. A line drawing of each plant is included plus colour photographs of about 100 species. Very good as a field guide, it only gives brief details about the plants medicinal properties.
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| [238]Bown. D. Encyclopaedia of Herbs and their Uses.
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| A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
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| [240]Chopra. R. N., Nayar. S. L. and Chopra. I. C. Glossary of Indian Medicinal Plants (Including the Supplement).
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| Very terse details of medicinal uses of plants with a wide range of references and details of research into the plants chemistry. Not for the casual reader.
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| [244]Phillips. R. & Foy. N. Herbs
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| Deals with all types of herbs including medicinal, culinary, scented and dye plants. Excellent photographs with quite good information on each plant.
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| [254]Chevallier. A. The Encyclopedia of Medicinal Plants
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| An excellent guide to over 500 of the more well known medicinal herbs from around the world.
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