Atriplex parishii var. minuscula

(Standley) S. L. Welsh

Rhodora 102: 423. 2001.

Common names: Lesser orach
EndemicConservation concern
Basionym: Atriplex minuscula Standley in N. L. Britton et al., N. Amer. Fl. 21: 51. 1 916
Treatment appears in FNA Volume 4. Treatment on page 356. Mentioned on page 357.

Stems prostrate or spreading-ascending to erect, often reddish, terete, 0.7–2 (–4) dm, scurfy. Leaves numerous, imbricate, all or mainly alternate, sessile; blade ovate or broadly so, (1–) 4–10 mm, base rounded to subcordate, margin entire, apex acute. Flowers solitary or few in axils, staminate 4-merous. Fruiting bracteoles deciduous, rounded-deltoid, compressed, 2–3 mm and as broad or broader, somewhat hastately lobed at base and denticulate or crenulate, acute or acuminate at apex, sides smooth. Seeds reddish-brown, 0.8–0.9 mm.


Phenology: Flowering late summer–fall.
Habitat: Sandy saline substrates
Elevation: 20-60 m

Discussion

Of conservation concern.

Atriplex parishii var. minuscula occurs with Distichlis spicata, Centromadia pungens, Suaeda moquin-tandonii, Spergularia macrotheca:, Frankenia salina, Sporobolus airoides, and other annual Atriplex species. Plants of this variety are sympatric with those of var. subtilis and evidently maintain their integrity even when growing together. This species shares morphologic features with A. cordulata, which suggests a relationship in that direction.

Selected References

None.

Lower Taxa

None.

"dm" is not declared as a valid unit of measurement for this property."/2" is not declared as a valid unit of measurement for this property."broader" is not a number. "broad" is not a number. "broader" is not a number. "broad" is not a number.

broadest +
Stanley L. Welsh +
(Standley) S. L. Welsh +
slippery +
aromatic +
deciduous +
acuminate +, acute +, crenulate +, denticulate +, lobed +, compressed +, rounded-deltoid +, rounded +  and subcordate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
broader;broad +
Atriplex minuscula +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
broadly +  and ovate +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
3mm;8mm +
persistent +  and deciduous +
reddish-brown +, black +, brown +  and green +
0 +  and 1/2 +
cuneate +  and ovate or obovate +
horizontal +  and ascending +
villous +, scurfy +  and white +
3-5-parted +
Lesser orach +
separated +  and imbricate +
20-60 m +
smooth +  and tuberculate +
4-merous +  and staminate +
unisexual +  and bisexual +
not +  and connate +
enlarged +
Sandy saline substrates +
bladderlike +
terminal +  and axillary +
alternate +  and imbricate +
deciduous +  and persistent +
not winged +  and winged +
gray +  and white +
lobed +  and serrate-dentate +
subsessile +, sessile +  and monomorphic +
hastate +  and ovate +
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 +
tuberculate +
Endemic +  and Conservation concern +
cylindric +
3 (?) +  and 5 (?) +
opposite +  and alternate +
spreading-ascending +  and erect +
succulent +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
verrucate +
Obione parishii +
Atriplex parishii var. minuscula +
Atriplex parishii +
variety +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
lobed +, compressed +, rhombic +  and ovate +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
dicotyledonous +
spreading;prostrate +