Chenopodium polyspermum var. acutifolium

(Smith) Gaudin

Fl. Helv. 2: 259. 1828.

Introduced
Basionym: Chenopodium acutifolium Smith Comp. Fl. Brit., 42. 1 800
Treatment appears in FNA Volume 4. Treatment on page 286.

Plants upright (proximal branches often nearly prostrate). Leaf-blades becoming red at maturity, apex usually acute. Inflorescences condensed, spikelike panicles, terminal and axillary.


Phenology: Fruiting summer–fall.
Habitat: Moist disturbed soils, gardens, waste areas, alluvial plains
Elevation: 10-500 m

Distribution

V4 533-distribution-map.gif

Introduced; N.B., Ont., Que., Sask., Maine, Mass., Mich., N.Y., Oreg., Wis., native to Europe, n Asia, in many other regions of the world

Discussion

Selected References

None.

Lower Taxa

None.

"narrower" is not a number."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.

dehiscent +  and indehiscent +
Steven E. Clemants +  and Sergei L. Mosyakin +
(Smith) Gaudin +
slippery +
aromatic +
rounded +  and cuneate +
Chenopodium acutifolium +
4 cm40 mm <br />0.04 m <br /> (8 cm80 mm <br />0.08 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (4 cm40 mm <br />0.04 m <br />) +
ovate +  and elliptic or oblong +
0.4 cm4 mm <br />0.004 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
persistent +  and deciduous +
reduced +
reddish-brown +, black +, brown +  and green +
N.B. +, Ont. +, Que. +, Sask. +, Maine +, Mass. +, Mich. +, N.Y. +, Oreg. +, Wis. +, native to Europe +, n Asia +  and in many other regions of the world +
10-500 m +
hippocrepiform +  and annular +
symmetric +, or +  and uniseriate +
dehiscent +  and indehiscent +
Moist disturbed soils, gardens, waste areas, alluvial plains +
small white +
inflated +
sessile +  and petiolate +
nonaromatic +
not fleshy +
elliptic +  and oblong +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
not winged +  and winged +
acute +  and rounded +
crassinucellate +  and bitegmic +
campylotropous +
1 +  and single +
spikelike +
persistent +  and deciduous +
nonadherent +
chartaceous +  and membranaceous +
0 cm0 mm <br />0 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
Fruiting summer–fall. +
pointing +  and ascending +
bulbous +  and taprooted +
fusiform +
fleshy +  and fibrous +
honeycombed +  and smooth +
reddish-brown +, brown +  and black +
0.8mm +  and 1.3mm +
lenticular +  and subglobose +
Introduced +
compound +, dense +  and loose +
cylindric +
not imbricate +
keeled +  and rounded +
opposite +  and alternate +
decumbent +  and erect +
not fleshy +
filiform +
0.1 cm1 mm <br />0.001 m <br /> (?) +  and 2 cm20 mm <br />0.02 m <br /> (?) +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
verrucate +
Chenopodium polyspermum var. acutifolium +
Chenopodium polyspermum +
variety +
dehiscent +  and indehiscent +
depressed-ovoid +
glabrous +  and pubescent +
polygamous +, dioecious +  and monoecious +
not imbricate +
keeled +  and rounded +