Atriplex gardneri var. utahensis

(M. E. Jones) Dorn

Vasc. Pl. Wyoming, 296. 1988.

Common names: Basin saltbush
Endemic
Basionym: Atriplex nuttallii var. utahensis M. E. Jones Contr. W. Bot. 11: 19. 1903
Synonyms: Atriplex cuneata var. introgressa C. A. Hanson Atriplex gardneri var. tridentata (Kuntze) J. F. Macbride
Treatment appears in FNA Volume 4. Mentioned on page 373.

Subshrubs, dioecious or sparingly monoecious, mostly 1–10 × 2–15 dm. Stems decumbent to erect. Leaves tardily deciduous, alternate or some subopposite proximally; petiole to 3 mm; blade linear to oblong, 8–50 × 2–15 mm, 2–5 (–10+) times longer than wide. Staminate flowers yellow or occasionally brown, in glomerules 2–4 mm thick, in terminal panicles 4–30 cm. Pistillate flowers in panicles similar to staminate ones. Fruiting bracteoles sessile to short stipitate, body mainly flattened and broadly cuneate, 2–4.5 × 3–5 mm, apex with a terminal tooth to 2 mm, subtended by 2–11 lateral teeth, surface lacking tubercles to densely tuberculate. Seeds 1–2 mm wide. 2n = 18, 36, 54.


Phenology: Flowering summer–fall.
Habitat: Greasewood, shadscale,alkali sacaton, kochia, saltbush, saltgrass, and sedge-rush communities, on fine-textured saline substrates
Elevation: 1200-2100 m

Distribution

V4 735-distribution-map.gif

Ariz., Colo., Idaho, Nev., Utah, Wyo.

Discussion

Materials from eastern Utah have leaves narrower on the average than those from the Great Basin and more heavily tuberculate bracteoles. C. A. Hanson (1962) regarded intermediate materials from Wellington in Carbon County, Utah, between Atriplex gardneri var. utahensis and var. cuneata as A. cuneata var. introgressa C. A. Hanson. H. C. Stutz and S. C. Sanderson (1998) attempted to reinstate the name A. nuttallii for a portion of the variation included herein within var. utahensis, i.e., that portion with more elongate stems and clump-forming habit, morphologic features with apparently negligible taxonomic significance.

Selected References

None.

Lower Taxa

None.

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

54 +, 36 +  and 18 +
wingless +  and winged +
Stanley L. Welsh +
(M. E. Jones) Dorn +
slippery +
aromatic +
cuneate +
Atriplex nuttallii var. utahensis +
0.8 cm8 mm <br />0.008 m <br /> (5 cm50 mm <br />0.05 m <br />) +
linear +  and oblong +
2mm;15mm +
0.2 cm2 mm <br />0.002 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
cuneate +  and flattened +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
persistent +  and deciduous +
reddish-brown +, black +, brown +  and green +
3-5-parted +
Basin saltbush +
Ariz. +, Colo. +, Idaho +, Nev. +, Utah +  and Wyo. +
1200-2100 m +
pistillate +  and staminate +
brown +  and yellow +
unisexual +  and bisexual +
not +  and connate +
enlarged +
2mm +  and 4mm +
Greasewood, shadscale,alkali sacaton, kochia, saltbush, saltgrass, and sedge-rush communities, on fine-textured saline substrates +
bladderlike +
terminal +  and axillary +
sessile +  and petiolate +
subopposite +, some +  and alternate +
deciduous +
not winged +  and winged +
toothed +  and lobed +
stipitate +  and sessile +
inferior +, half-inferior +  and superior +
crassinucellate +  and bitegmic +
campylotropous +
1 +  and single +
0 cm0 mm <br />0 m <br /> (30 cm300 mm <br />0.3 m <br />) +
persistent +  and deciduous +
(1-)3-5-lobed +
papery +  and chartaceous +
0 cm0 mm <br />0 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Flowering summer–fall. +
Vasc. Pl. Wyoming, +
pointing +  and ascending +
sublateral +  and superior +
bulbous +  and taprooted +
fusiform +
fleshy +  and fibrous +
verrucate +  and striate +
Brown (?) +  and Tan (?) +
flattened +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
cylindric +
3 (?) +  and 5 (?) +
opposite +  and alternate +
decumbent +  and erect +
succulent +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
verrucate +
Atriplex cuneata var. introgressa +  and Atriplex gardneri var. tridentata +
Atriplex gardneri var. utahensis +
Atriplex gardneri +
variety +
spicate +  and naked +
4 cm40 mm <br />0.04 m <br /> (30 cm300 mm <br />0.3 m <br />) +
spicate +  and naked +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
tuberculate +
dicotyledonous +
sessile +  and short stipitate +
perennial +  and annual +
monoecious +  and dioecious +
2dm +  and 15dm +