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Arundo donax

Arundo donax: Plant
Photo by Ken Fern. High resolution version

Arundo donax: Plant
Photo by Ken Fern. High resolution version

Common name:	Giant Reed	Family:	Gramineae
Author:	L.	Botanical references:	50, 200
Synonyms:	Arundo maxima
Known Hazards:	None known
Range:	S. Europe
Habitat:	Ditches, riversides and marshland[7, 200].
Edibility Rating (1-5):	3	Medicinal Rating (1-5):	2

Other Possible Synonyms:	From various places across the web, may not be correct. See below.
	A. donax var. versicolor[B] A. versicolor[B]
Other Common Names:	From various places around the Web, may not be correct. See below.
	Arundo [E], Cana [E], Canne De Provence [E], Ghab Farsi [E], Giant Reed [L,FEIS], Giant-reed [B], Giantreed [P], Herbe Roseau [E], Kamis [E], Qamish [E], Roseau [E], Z'Herbe Roseau [E],
Systematics:	From a USDA Plants Database
	Order: Cyperales. Renamed to Poaceae -- Grass family
Other Range Info:	From the Ethnobotany Database
	Haiti Iraq Italy Spain Turkey
Noxious, Invasive and Injurious Weeds	From USDA PLANTS database, Weeds Australia , DEFRA Injurious Weeds
	Listed as noxious/invasive for: New South Wales.

Physical Characteristics

Perennial growing to 6m by 4m . It is hardy to zone 6. It is in flower in September, and the seeds ripen in October. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Wind. We rate it 3/5 for edibility and 2/5 for medicinal use.

The plant prefers light (sandy), medium (loamy) and heavy (clay) soils and requires well-drained soil. The plant prefers acid, neutral and basic (alkaline) soils and can grow in very alkaline soil. It cannot grow in the shade. It requires moist or wet soil. The plant can tolerates strong winds but not maritime exposure.

Habitats and Possible Locations

Bog Garden, Hedge, Woodland, Sunny Edge.

Edible Uses

Leaves Root.

Rhizome - raw or cooked[84]. The rhizome can be dried and ground into a powder to make bread, usually in conjunction with cereal flours[7, K]. It can also be roasted or boiled[84].
Leaves - cooked as a potherb[84]. They are very bitter[177]. The young shoots are used[177].

Medicinal Uses

Disclaimer

Diaphoretic Diuretic Emollient Galactofuge Hypotensive.

The root is diaphoretic, diuretic, emollient and galactofuge[7]. An infusion is said to stimulate menstrual discharge and diminish milk flow[240, 272]. A paste of the root is applied to the forehead to treat headaches[272]. Isolated alkaloids have been experimentally shown to raise the blood pressure and contract the intestine and uterus[240]. The rhizome or rootstock is used in the treatment of dropsy. Boiled in wine with honey, the root or rhizome has been used for treating cancer[269].
The plant contains the alkaloid gramine. This is said to be a vasopressor, raising the blood pressure in dogs after small doses, causing a fall in larger doses[269].
The stems have been used as splints for broken limbs[257].

Other Uses

Basketry Biomass Broom Dye Hedge Musical Paper Pipes Plant support Shelterbelt Soil stabilization Thatching Weaving.

Brooms are made from the terminal panicles[7].
Plants are grown alongside irrigation canals to check soil erosion[169].
The plant can be grown as a windbreak screen[1, 169]. If cut down, the culms branch and in this form the plants can be used as a hedge[236].
The leaves can be woven into mats etc, whilst the split and flattened stems are used to make screens, walls of houses etc[46, 50, 61, 84].
A yellow dye is obtained from the pollen[257].
The stems of the plant have a multitude of applications. They are used as plant supports for vines and other climbing plants[7, 169, 269] and to make clarinets, bag-pipes etc[46, 61, 103]. They are also used as pipe stems[84], for roofing[46], to make screens, walking sticks and in basketry[100, 195]. They are used to make the reeds of clarinets and organ pipes[236]. The stems can be harvested as desired at any time of the year[269].
The fibre from the stems can be used to make a good quality paper[269]. This plant is currently (1995) under investigation at Rosewarne in &ndndndnd as a potential commercial paper crop for small-scale industries in SW. England[K].
Because of rather high yields from natural stands, the plant has been suggested as a source of biomass for energy production[7, 269]. Dry cane yields of ca 10, 15, and 20 tonnes per hectare were reported respectively from infertile, partly fertile and fertile soils[269]. According to the phytomass files annual productivity ranges from 10 to 59 tonnes per hectare, the latter figure from Westlake's (1963) estimate of 57 - 59 tonnes[269]. In addendum, Westlake cites evidence that Arundo donax can produce 40-75 MT/ha/yr. in warm temperate and tropical regions. Early vegetative growth has ME (metabolizable energy) of 2.22 megacalories/kg DM, while hay has an ME of only 1.37 (Gohl, 1981). Such annual productivity, if sustainable, makes this a notable energy candidate, especially when one considers the energy as a by-product, with leaf protein and potential pharmaceutical as primary products[269].
A particular type of cellulose is obtained from the plant[7]. In Italy, the plant is used in the manufacture of rayon[269].

Cultivation details

Prefers a moist fertile soil in a sunny sheltered position, preferably by water[1, 134, 200]. Tolerates a pH in the range 5.5 to 8.3. Plants can be grown as a specimen in lawns etc, succeeding in quite coarse grass[233]. Plants are succeeding in a site that is very exposed to maritime winds at Rosewarne in &ndndndnd[K].
Adapted to tropical, subtropical and warm temperate climates of the World, Giant reed is often found on sand dunes near seashores. It tolerates some salt. It grows best along river banks and in other wet places, and is best developed in poor sandy soil and in sunny situations. Said to tolerate all types of soils, from heavy clays to loose sands and gravelly soils. Ranging from Cool Temperate Wet through Tropical Dry to Wet Forest Life Zones, giant reed is reported to tolerate annual precipitation of 30 to 400cm, an average annual temperature range of 9 to 28.5° C and a pH in the range of 5.0 to 8.7[269].
One report says that this plant is only hardy in the milder areas of Britain[1] whilst another report says that it is hardy to between -5 and -10° c[200]. This contradicts with the hardiness zone rating of 6 which would make the plant hardy in most areas of Britain[200]. Plants thrive outdoors at Oxford Botanical Gardens[233] as well as at Hilliers Arboretum in Hampshire and the RHS Gardens in Surrey[K].
Extensively cultivated in S. Europe for basket making etc[50].
Plants rarely if ever flower in British gardens233].
Members of this genus are rarely if ever troubled by browsing deer[233].

Propagation

Seed - surface sow in a greenhouse in February to April. Stand the pots in about 3cm of water to keep the soil moist until the seed germinates. It usually germinates in 1 - 3 months at 15° c[134]. When large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first winter. Once they are 20cm or more tall, plant them out into their permanent positions in late spring or early summer.
Division in spring[1]. Whilst large divisions can be planted out direct into their permanent positions, we have found that it is best to pot the divisions up and keep them in light shade in a greenhouse until they are rooting away well.
Stem cuttings, placed in water, root easily[1].

Suppliers

For more details of plant suppliers please see our Suppliers Page which lists many more places to look.

PFAF Web Pages

This plant is mentioned in the following web pages

Web References

[H] Details of Scandanavian and European Common names in Henriette's names database
[E] Ethnobotany Data (common names, uses, countries) from the Ethnobotany Database.
[V] Images from the Vascular Plant Image Gallery of the Texas A& M Bioinformatics Working Group.
[B] Data (Latin & Common names, other references) from the BONAP's Synonymized Checklist of the Vascular Flora of the United States, Puerto Rico, and the Virgin Islands.
[PHARM] Phytochemical Data (common names, uses, countries) from Dr Duke's Phytochemical Database.
[G] Data (Common Names, Uses, Distribution) from the USDA/ARS NPGS's GRIN taxonomic database.
[P] Data. (uses, distribution, wetland) from the USDA'a Plants database.
[HEC] Use, Folk Medicine, etc. from Handbook of Energy Crops by James Duke
[FEIS] Data (Uses, Ecology, Fire Effects) from the USDA Forestry Service Fire Effects Information System.
[HP] Links, Photos, Suppliers from Hortiplex Plant Database

See the PFAF Links Pages for other sources.

Also try Photos and info from the The Plants Database which has 14,000 images.

References

[K] Ken Fern
Notes from observations, tasting etc at Plants For A Future and on field trips.

[1] F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press 1951
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaces in 1992 by a new dictionary (see [200]).

[7] Chiej. R. Encyclopaedia of Medicinal Plants. MacDonald 1984 ISBN 0-356-10541-5
Covers plants growing in Europe. Also gives other interesting information on the plants. Good photographs.

[46] Uphof. J. C. Th. Dictionary of Economic Plants. Weinheim 1959
An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.

[50] ? Flora Europaea Cambridge University Press 1964
An immense work in 6 volumes (including the index). The standard reference flora for europe, it is very terse though and with very little extra information. Not for the casual reader.

[61] Usher. G. A Dictionary of Plants Used by Man. Constable 1974 ISBN 0094579202
Forget the sexist title, this is one of the best books on the subject. Lists a very extensive range of useful plants from around the world with very brief details of the uses. Not for the casual reader.

[84] Coyle. J. and Roberts. N. C. A Field Guide to the Common and Interesting Plants of Baja California. Natural History Publishing Co. 1975
A very readable pocket flora with good illustrations, it gives quite a few plant uses.

[100] Polunin. O. Flowers of Europe - A Field Guide. Oxford University Press 1969 ISBN 0192176218
An excellent and well illustrated pocket guide for those with very large pockets. Also gives some details on plant uses.

[103] Haywood. V. H. Flowering Plants of the World. Oxford University Press ISBN 0-19-217674-9
Very readable and well illustrated, it lists plants by families giving the basic diagnostic features and some details of plant uses.

[134] Rice. G. (Editor) Growing from Seed. Volume 2. Thompson and Morgan. 1988
Very readable magazine with lots of information on propagation. An interesting article on Ensete ventricosum.

[169] Buchanan. R. A Weavers Garden.
Covers all aspects of growing your own clothes, from fibre plants to dyes.

[177] Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books 1984 ISBN 3874292169
An excellent book for the dedicated. A comprehensive listing of latin names with a brief list of edible parts.

[195] Farrelly. D. The Book of Bamboo Sierra Club. 1984 ISBN 0-87156-825-X
Very readable, giving lots of information on the uses of bamboos, both temperate and tropical.

[200] Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992 ISBN 0-333-47494-5
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.

[233] Thomas. G. S. Perennial Garden Plants J. M. Dent & Sons, London. 1990 ISBN 0 460 86048 8
A concise guide to a wide range of perennials. Lots of cultivation guides, very little on plant uses.

[236] Hitchcock. A. S. Manual of the Grasses of the United States Dover Publications. New York. 1971 ISBN 0-486-22717-0
A nice and comprehensive flora, though a bit dated. Good line drawings of each plant, plus a brief idea of the habitat and a few notes on plant uses. Not for the casual reader.

[240] Chopra. R. N., Nayar. S. L. and Chopra. I. C. Glossary of Indian Medicinal Plants (Including the Supplement). Council of Scientific and Industrial Research, New Delhi. 1986
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.

[257] Moerman. D. Native American Ethnobotany Timber Press. Oregon. 1998 ISBN 0-88192-453-9
Very comprehensive but terse guide to the native uses of plants. Excellent bibliography, fully referenced to each plant, giving a pathway to further information. Not for the casual reader.

[269] Duke. J. Handbook of Energy Crops - 1983
Published only on the Internet, excellent information on a wide range of plants.

Readers Comments

Edible Shrubs

(un)leash (Courtjesterhelterskelter@hotmail.com) Thu May 17 05:35:05 2001

Is ARUNDO DONAX edible at any stage along the way?

The reason being that here in California it is an exotic strangling out native plants in waterways, and the main response has been horrible herbicides.

It seems to me that if it is indeed edible it could be HARVESTED and thus sustainably used, so that it won't spread.

Does anyone know about the edible or medicinal qualities of ARUNDO DONAX?

If so, please email (un)leash at COURTJESTERHELTERSKELTER@HOTMAIL.COM.

Thank you.

Cross references: Web-pages: Edible Shrubs.

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