Arundo donax

L.
Common names: Giant reed
Introduced
Synonyms: Arundo donax var. versicolor
Treatment appears in FNA Volume 25. Treatment on page 11.

Culms (2) 3-10 m, in large tussocks or hedges. Leaves distichous; ligules 0.4-1 mm; blades 30-100 cm long, 2-7 (9) cm wide, with a wedge-shaped, light to dark-brown area at the base. Panicles 30-60 cm long, to 30 cm wide. Spikelets 10-15 mm, with 2-4 florets. Glumes subequal, as long as the spikelets, thin, brownish or purplish, 3-veined, long-acuminate; lemmas 8-12 mm, 3-5-veined, pilose, hairs 4-9 mm, apices bifid, midvein ending into a delicate awn; paleas 3-5 mm, pilose at the base; anthers 2-3 mm. Caryopses 3-4 mm, oblong, light-brown. 2n = 24, 100, 110.

Distribution

Del., W.Va., Pacific Islands (Hawaii), Fla., Tex., La., Tenn., N.C., S.C., Nev., Va., Calif., Puerto Rico, Virgin Islands, Ala., Ark., Ill., Ga., Ariz., N.Mex., Md., Okla., Utah, Mo., Kans., Miss., Ky.

Discussion

Within the Flora region, Arundo donax grows in the southern half of the contiguous United States, being found along ditches, culverts, and roadsides where water accumulates. It has been used extensively as a windbreak, and planted for erosion control on wet dunes. It is also grown for the ornamental value of its tall, leafy culms and large panicles, but its tendency to spread is sometimes a disadvantage. Cultivars with striped or unusually wide leaves, e.g., 'Variegata' and 'Macrophylla', are of horticultural interest but do not merit taxonomic recognition.

Arundo donax has been used for thousands of years in making musical instruments, the stems being used for pipes and the tough inner rind for reeds in a wide variety of woodwind instruments. It is one of the species referred to as 'reed' in the Bible. It is still used in many parts of the world for house construction, lattice-work, mats, screens, stakes, walking sticks, and fishing poles.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Arundo donax"
110 +, 100 +  and 24 +
membranous +  and of hairs +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
light +  and dark-brown +
wedge--shaped +
Kelly W. Allred +
1 (?) +  and 3 (?) +
not fused +
3 +  and 1 +
keeled +  and rounded +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
deciduous +
30 cm300 mm <br />0.3 m <br /> (100 cm1,000 mm <br />1 m <br />) +
folded +  and flat +
2cm;7cm +
spikelike +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Giant reed +
200 cm2,000 mm <br />2 m <br /> (1,000 cm10,000 mm <br />10 m <br />) +
pendant +  and erect +
300 cm3,000 mm <br />3 m <br /> (1,000 cm10,000 mm <br />10 m <br />) +
woody +  and herbaceous to somewhat +
1 cm10 mm <br />0.01 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Del. +, W.Va. +, Pacific Islands (Hawaii) +, Fla. +, Tex. +, La. +, Tenn. +, N.C. +, S.C. +, Nev. +, Va. +, Calif. +, Puerto Rico +, Virgin Islands +, Ala. +, Ark. +, Ill. +, Ga. +, Ariz. +, N.Mex. +, Md. +, Okla. +, Utah +, Mo. +, Kans. +, Miss. +  and Ky. +
not +  and waisted +
capillary +
pistillate +  and staminate +
sometimes longer +
2 +  and 4 +
unisexual +  and bisexual +
compressed +  and terete +
purplish +  and brownish +
subtending +
long-acuminate +
subequal +
3-7-veined +  and not papillose-based +
0.4 cm4 mm <br />0.004 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
spicate +  and ebracteate +
racemose +  and paniculate +
lanceolate +  and elliptic acute +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
membranous +
joined +  and free +
inconspicuous +
concealed +  and prominent +
2 +  and 1 +
subequal +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
silvery +  and purplish +
30cm +  and 60cm +
0 cm0 mm <br />0 m <br /> (30 cm300 mm <br />0.3 m <br />) +
dry +  and fleshy +
Introduced +
1 +  and 60 +
compressed +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
1 (?) +  and 3 (?) +
triangular +, dome--shaped +  and low +
2 (?) +  and 3 (?) +
Arundo donax var. versicolor +
Arundo donax +
species +
membranous +
aquatic +  and terrestrial +