Boehmeria cylindrica

(Linnaeus) Swartz

Prodr., 34. 1788.

Common names: False-nettle
Illustrated
Basionym: Urtica cylindrica Linnaeus Sp. Pl. 2: 984. 1753
Synonyms: Boehmeria cylindrica var. drummondiana (Weddell) Weddell Boehmeria decurrens Weddell Boehmeria drummondiana (Porter) Small Boehmeria scabra
Treatment appears in FNA Volume 3.

Herbs or subshrubs, 1-16 dm. Leaves opposite or nearly opposite, rarely alternate. Leaf-blades elliptic, lanceolate to broadly ovate, 5-18 × 2-10 cm, almost glabrous on both surfaces or abaxially densely short-pilose or puberulent, adaxially scabrous. Inflorescences spikelike, often leafy at apex. Flowers in remote or crowded clusters of 1-few staminate and several pistillate flowers or rarely staminate and pistillate flowers on different plants. Achenes ovoid to nearly orbicular, 0.9-1.6 × 0.9-1.2 mm, almost glabrous or pubescent with straight and hooked hairs; seeds prominent, conspicuous in outline, surrounded except at base by corky tissue. 2n = 28.


Phenology: Flowering summer–fall.
Habitat: Alluvial or moist, deciduous woods, swamps, bogs, marshes, wet meadows, ditches
Elevation: 0-1800 m

Distribution

V3 266-distribution-map.gif

N.B., Ont., Que., Ala., Ariz., Ark., Conn., Del., D.C., Fla., Ga., Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Nebr., N.H., N.J., N.Mex., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., S.Dak., Tenn., Tex., Utah, Vt., Va., W.Va., Wis., Mexico, West Indies, Bermuda, Central America, South America (Argentina), South America (s Brazil), South America (Paraguay), South America (Uruguay), South America (and Venezuela)

Discussion

Populations of Boehmeria cylindrica are disjunct in South America.

Plants with thick, often drooping, lanceolate leaf blades, more or less pilose or puberulent abaxially, scabrous adaxially, with short petioles, pilose or puberulent stems, and densely pubescent achenes have been called Boehmeria cylindrica var. drummondiana. These plants are found mostly, but not exclusively, in the southeastern United States and are totally sympatric with more typical plants. The above characteristics may or may not occur together, and each grades into the state found in more typical plants through abundant intermediates. Field and experimental studies are needed to clarify the biologic basis of this variation.

Selected References

None.

Lower Taxa

None.
... more about "Boehmeria cylindrica"
0.09 cm0.9 mm <br />9.0e-4 m <br /> (?) +  and 0.16 cm1.6 mm <br />0.0016 m <br /> (?) +
pubescent +  and glabrous +
ovoid +  and nearly orbicular +
0.9mm +  and 1.2mm +
David E. Boufford +
(Linnaeus) Swartz +
cuneate +, rounded +  and cordate +
Urtica cylindrica +
False-nettle +
N.B. +, Ont. +, Que. +, Ala. +, Ariz. +, Ark. +, Conn. +, Del. +, D.C. +, Fla. +, Ga. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Mo. +, Nebr. +, N.H. +, N.J. +, N.Mex. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, R.I. +, S.C. +, S.Dak. +, Tenn. +, Tex. +, Utah +, Vt. +, Va. +, W.Va. +, Wis. +, Mexico +, West Indies +, Bermuda +, Central America +, South America (Argentina) +, South America (s Brazil) +, South America (Paraguay) +, South America (Uruguay) +  and South America (and Venezuela) +
0-1800 m +
reflexing +  and inflexed +
pistillate +  and staminate +
cluster +, crowded +  and remote +
several;1;few +
loosely +  and free +
Alluvial or moist, deciduous woods, swamps, bogs, marshes, wet meadows, ditches +
straight +
separate +  and paniculate +
5 cm50 mm <br />0.05 m <br /> (18 cm180 mm <br />0.18 m <br />) +
puberulent +, short-pilose +  and glabrous +
2 cm20 mm <br />0.02 m <br /> (10 cm100 mm <br />0.1 m <br />) +
alternate +  and opposite +
serrate +  and dentate +
rounded +  and linear +
accrescent +
Flowering summer–fall. +
conspicuous +  and prominent +
Illustrated +
simple +  and freely branched +
persistent +
elongate +
Boehmeria cylindrica var. drummondiana +, Boehmeria decurrens +, Boehmeria drummondiana +  and Boehmeria scabra +
Boehmeria cylindrica +
Boehmeria +
species +
reddish +, greenish +, green +  and white +
adnate +  and connate +
hypogynous +
straight +  and curved +
subshrub +  and herb +
sparsely +  and more or less densely pubescent or tomentose +