Atriplex canescens var. macilenta

Jepson

Fl. Calif. 1: 442. 1914.

Common names: Salton saltbush
Endemic
Treatment appears in FNA Volume 4. Treatment on page 380. Mentioned on page 376, 379.

Plants mainly 3–10 (–20 dm), not spiny. Leaves narrowly oblanceolate, mainly 14–25 × 2–5 mm wide, often thickened, mainly rounded apically. Pistillate flowers borne in panicles mostly 5–25 cm. Fruiting bracteoles on stipes 0–4 (–7) mm, body typically with 4 prominent, dentate or laciniate wings extending the bract length, united throughout, mainly 5–10 × 4–8 mm, apex toothed, surface of wings and body smooth or reticulate.


Phenology: Flowering spring–fall.
Habitat: Saline desert flats, alluvial fans
Elevation: -60-100+ m

Discussion

Atriplex canescens var. macilenta, a high polyploid (x = 9), apparently arose through initial hybridization involving Atriplex canescens and one chromosomal race of A. polycarpa. It shares a similar morphology with the diploid A. linearis, with which it has been confused. That entity is present in the south California vicinity of both varieties macilenta and laciniata. It differs in its very slender branchlets, less laciniate wings, and more elongate, elliptic leaves.

Selected References

None.

Lower Taxa

None.

"united" is not a number.

wingless +  and winged +
Stanley L. Welsh +
Jepson +
slippery +
aromatic +
Calligonum canescens +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
linear +  and oblanceolate oblong or obovate +
3mm;8mm +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
persistent +  and deciduous +
reddish-brown +, black +, brown +  and green +
3-5-parted +
Salton saltbush +
-60-100+ m +
unisexual +  and bisexual +
5 cm50 mm <br />0.05 m <br /> (25 cm250 mm <br />0.25 m <br />) +
not +  and connate +
enlarged +
Saline desert flats, alluvial fans +
bladderlike +
terminal +  and axillary +
nearly +  and sessile +
persistent +
14mm;25mm +
rounded +  and oblanceolate +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
not winged +  and winged +
toothed +  and lobed +
stipitate +  and sessile +
inferior +, half-inferior +  and superior +
crassinucellate +  and bitegmic +
campylotropous +
1 +  and single +
persistent +  and deciduous +
(1-)3-5-lobed +
papery +  and chartaceous +
Flowering spring–fall. +
pointing +  and ascending +
sublateral +  and superior +
bulbous +  and taprooted +
fusiform +
fleshy +  and fibrous +
verrucate +  and striate +
flattened +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
cylindric +
3 (?) +  and 5 (?) +
opposite +  and alternate +
succulent +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
reticulate +  and smooth +
verrucate +
Atriplex nuttallii +
Atriplex canescens var. macilenta +
Atriplex canescens +
variety +
spicate +  and naked +
spicate +  and naked +
tuberculate +
dicotyledonous +
perennial +  and annual +
monoecious +  and dioecious +
wider +  and wide +
laciniate +  and dentate +
dentate to entire +