Atriplex tatarica

Linnaeus

Sp. Pl. 2: 1053. 1753.

Common names: Tatarian orach
Introduced
Treatment appears in FNA Volume 4. Treatment on page 341. Mentioned on page 293, 326.

Herbs, much branched, forming tangled or spreading masses. Stems with branches divaricate or ascending, terete or obtusely angled, 2–10 (–15) dm, sparsely scurfy when young. Leaves alternate (or the proximalmost opposite), long petiolate becoming nearly sessile distally, blade ovate to triangular, 15–50 (–60) × 10–40 mm, base subhastate or cuneate, margin deeply or shallowly sinuate-dentate with acute or obtuse teeth, apex acute or obtuse, distalmost bracteate blades becoming entire and linear or oblong-linear. Staminate flowers in glomerules borne in slender, naked or sparingly bracteate (at base), mostly interrupted simple or paniculate spikes, calyx 5-cleft. Pistillate flowers fascicled in distal axils. Fruiting bracteoles strongly 3-veined and reticulate, sessile or short stipitate, ovate-rhombic or subflabelliform, 4–8 × 3–7 mm, moderately compressed, united from narrowed base to middle, margin broad, foliaceous, coarsely dentate, indurate at maturity, faces tuberculate or smooth. Seeds brown, 1.5–2 mm; radicle inferior, ascending.


Phenology: Flowering late summer–fall.
Habitat: Atlantic and Gulf coasts, ballast and waste grounds
Elevation: 0-50 m

Distribution

V4 646-distribution-map.gif

Introduced; Ala., Conn., Fla., Mass., N.H., N.J., Pa., Europe

Discussion

H. M. Hall and F. E. Clements (1923) treated Atriplex tatarica at specific level with the above distribution (as an introduced ballast plant of rare occurrence), but did not recognize the closely similar A. laciniata, which is currently the species recognized for coastal eastern America. They evidently interpreted A. tatarica to include A. lampa Gillies as identified by P. C. Standley (1916). Atriplex lampa is a shrubby species from South America and does not figure in consideration of North American taxa. Atriplex tatarica includes a complex of forms and varieties in Flora URSS (M. M. Iljin 1936). In Flora Europaea (P. Aellen 1964b) A. tatarica and A. laciniata are separated in the key by the glomerules of A. tatarica being borne in terminal, leafless, often long panicles, whereas those of A. laciniata are borne axillary or in leafy clusters. The species differ otherwise in stature, A. laciniata being a dwarf plant up to 30 cm and with small leaves, A. tatarica being a robust annual up to 150 cm, and with large leaves. The illustration by Hall and Clements (fig. 38) shows a plant with leafy panicle.

Atriplex tatarica has been ignored by H. A. Gleason and A. Cronquist (1991) and by all other authors of floras covering the northeastern United States.

Selected References

None.

Lower Taxa

None.

"dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property.

... more about "Atriplex tatarica"
obtuse +  and acute +
Stanley L. Welsh +
Linnaeus +
slippery +
aromatic +
stipitate +, sessile +  and 3-veined +
narrowed +, compressed +, subflabelliform +, ovate-rhombic +, cuneate +  and subhastate +
Sclero calymma +
oblong-linear +  and linear +
5 cm50 mm <br />0.05 m <br /> (6 cm60 mm <br />0.06 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
ovate +  and triangular +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
persistent +  and deciduous +
reddish-brown +, black +, brown +  and green +
rhombic +  and ovate +
3-5-parted +
Tatarian orach +
Ala. +, Conn. +, Fla. +, Mass. +, N.H. +, N.J. +, Pa. +  and Europe +
0-50 m +
smooth +  and tuberculate +
pistillate +  and staminate +
unisexual +  and bisexual +
not +  and connate +
enlarged +
Atlantic and Gulf coasts, ballast and waste grounds +
bladderlike +
terminal +  and axillary +
sessile +  and petiolate +
deciduous +  and persistent +
dentate +  and sinuate-dentate +
toothed +  and entire +
inferior +, half-inferior +  and superior +
crassinucellate +  and bitegmic +
campylotropous +
1 +  and single +
persistent +  and deciduous +
(1-)3-5-lobed +
papery +  and chartaceous +
Flowering late summer–fall. +
bulbous +  and taprooted +
fusiform +
fleshy +  and fibrous +
verrucate +  and striate +
flattened +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Introduced +
simple +, interrupted +, bracteate +  and naked +
cylindric +
slender +
3 +  and 5 +
opposite +  and alternate +
angled +  and terete +
succulent +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
verrucate +
Roseae +
Atriplex tatarica +
Atriplex sect. Sclerocalymma +
species +
obtuse +  and acute +
dicotyledonous +