Substances & Homeopatic Remedies

    Arundo mauritanica

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    Arundo donax


    arundo: reed, cane; things made from reeds or shaped like a reed

    north African country, now Fez and Morocco


    Traditional name

    Other Names:  Reed.
    Common Names:  Italian Grass.

    German: Wasserrohr

    Used parts

    Homeopathic Preparation/Pharmacy:  Tincture of the root sprouts. (Bradford’s Index).


    N.O.  Subclass: Commelinidae; Order: Cyperles ; Family: Graminaceae/Poaceae (Grass Family)


    Original proving

    Provings:  Allen: Cyclopoedia, V. 1. Hering: Guid. Symptoms, V. 2. Possart: Hom. Arz., pt. 3. Brentano: A. H. Z., V. 72, p. 63.
         Patti: Jl. Soc. Gall., V. 7, p. 345. A. H. Z., V. 53, No. 7; V. 67, pp. 7, 14, 30.  (Bradford’s Index).

    Description of the substance

    The foto is taken from Wikipedia, it is released into the public domain.


    Botanical Information:  They are sturdy perennials that resemble reeds and can grow to a height of 6 metres. Reeds rarely produce fully developed seeds. They usually spread by means of vigorous interlocking rootstocks, which tend to crowd out all other kinds of vegetation. Reeds have been introduced into the southern United States and tropical America to control erosion. Some varieties, especially Arundo Donax, are used as decorative plants for wind-breaks and wickerwork, and supply the reed material for wind instruments. The name Arundo is a reference to the plant's appearance, since arundo is the Latin for reed. (Vermeulen Synoptic 2).

    Habitat:  Arundo is a plant genus with six varieties, indigenous to Southern Europe and the warmer parts of Africa and Asia. They are found in wetlands, most commonly brackish-water environments. (Vermeulen Synoptic 2).

    Arundo is a genus of tall perennial reed-like grasses with six species native to warmer parts of the Old World. Giant reed, Arundo donax, is the largest member of the genus and is among the largest of the grasses (Poaceae), growing to more than 25 feet tall. Giant reed is native to Europe, and is found in freshwaters in the Mediterranean region. Giant reed was purposefully introduced to California in the 1820's in the Los Angeles area as an erosion- control agent in drainage canals. Giant reed was also used as thatching for roofs of sheds, barns, and other buildings.

    Giant reed is a hydrophyte, growing along lakes, streams, drains and other wet sites. It uses prodigious amounts of water to supply its incredible rate of growth. Under optimal conditions giant reed can grow more than three inches per day.

    Arundo as a competitor:
    Within its introduced range, giant reed is an aggressive competitor. Giant reed flowers in late summer with a large, plumelike panicle. Fortunately for California land managers the seeds produced by Arundo in this country are seldom, if ever, fertile. As such, spread, and therefore management, of giant reed is essentially an intra-basin and downstream phenomenon. This species is well adapted to the high disturbance dynamics of riparian systems as it spreads primarily vegetatively. Flood events break up clumps of Arundo and spread the pieces downstream. Fragmented stem nodes and rhizomes can take root and establish as new plant clones.

    Once established this species tends to form large, continuous, clonal root masses, sometimes covering several acres, usually at the expense of native riparian vegetation which cannot compete with Arundo. Giant reed is also highly flammable throughout most of the year, and the plant appears highly adapted to extreme fire events. While fire is a natural and beneficial process in many natural communities in southern California it is a largely unnatural and pervasive threat to riparian areas. Natural wild fires usually occur during rare lightening storm events in late fall, winter, and early spring. Under these conditions the moist green vegetation of riparian areas would normally act as a fire break. Human-caused wild fires, in contrast, often occur during the dry months of the year. Dryer conditions in riparian zones at this time of year make them more vulnerable to fire damage. Because it is extremely flammable, once established within a riparian area giant reed redirects the history of a site by increasing the probability of the occurrence of wildfire, and increasing the intensity of wildfire once it does occur. Giant reed effectively changes riparian forest from a flood-defined to a fire-defined natural community (Figure 2).

    Rhizomes respond quickly after fire, sending up new sprouts and quickly outgrowing any native species which might have otherwise taken root in a burned-over site. Fire events thus tend to help push riparian stands in the direction of pure Arundo donax. This usually results in significant stands of giant reed with little additional plant species diversity.