Atriplex acanthocarpa

(Torrey) S. Watson

Proc. Amer. Acad. Arts 9: 117. 1874.

Common names: Burscale
Basionym: Obione acanthocarpa Torrey in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 183. 1859
Treatment appears in FNA Volume 4. Treatment on page 370. Mentioned on page 330.

Shrubs or subshrubs, dioecious, evergreen, mainly 2–10 × 4–10+ dm, woody especially basally, unarmed; branchlets obtusely angled to subterete. Leaves persistent, proximal ones opposite, becoming alternate distally, short petiolate or subsessile; blade oblong to oblong-lanceolate, ovate, obovate, or spatulate, 12–40 (–50) × 5–25 mm, base commonly subhastate to cuneate, margin entire or sinuate-dentate to strongly undulate-crisped, apex acute. Staminate flowers in interrupted or crowded glomerules 2–4.5 mm thick, in sparsely leafy paniculate spikes to 5+ dm. Pistillate flowers few to solitary, in axillary clusters or in crowded or interrupted, often leafy, erect, branched spicate racemes or racemose-panicles to 25+ cm. Fruiting bracteoles on slender or stout stipes (2–) 4–20 mm (or sessile), body broadly elliptic to globose, 6–15 mm and wide, spongy, united to the linear apex, margin deeply laciniate, faces appendaged with flattened to hornlike tubercles to 8 mm. Seeds brown, 1.5–2 mm.

Distribution

V4 727-distribution-map.gif

Ariz., N.Mex., Tex., n Mexico

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Key

1 Leaf blade ovate to rhombic-ovate, elliptic, or spatulate, margin mainly sinuate-dentate; mature fruiting inflorescences ascending to erect; west Texas, s New Mexico, se Arizona Atriplex acanthocarpa var. acanthocarpa
1 Leaf blade, at least some, hastate-lanceolate, or strongly undulate-crisped; mature fruiting inflorescences mainly horizontally spreading; s Texas, Mexico Atriplex acanthocarpa var. coahuilensis

"wide" 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.

... more about "Atriplex acanthocarpa"
wingless +  and winged +
Stanley L. Welsh +
(Torrey) S. Watson +
slippery +
aromatic +
commonly subhastate +  and cuneate +
Obione acanthocarpa +
4 cm40 mm <br />0.04 m <br /> (5 cm50 mm <br />0.05 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (4 cm40 mm <br />0.04 m <br />) +
oblong +  and oblong-lanceolate ovate obovate or spatulate +
5mm;25mm +
broadly elliptic +  and globose +
0.6 cm6 mm <br />0.006 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
persistent +  and deciduous +
reddish-brown +, black +, brown +  and green +
obtusely angled;subterete +
3-5-parted +
Burscale +
Ariz. +, N.Mex. +, Tex. +  and n Mexico +
pistillate +  and staminate +
unisexual +  and bisexual +
not +  and connate +
enlarged +
2mm +  and 4.5mm +
bladderlike +
terminal +  and axillary +
sessile +  and petiolate +
persistent +
not winged +  and winged +
sinuate-dentate to strongly undulate-crisped +  and entire +
laciniate +
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 +
subsessile +, petiolate +  and short +
alternate +  and opposite +
Proc. Amer. Acad. Arts +
spicate +, branched +, leafy +  and interrupted +
0 cm0 mm <br />0 m <br /> (25 cm250 mm <br />0.25 m <br />) +
pointing +  and ascending +
sublateral +  and superior +
bulbous +  and taprooted +
fusiform +
fleshy +  and fibrous +
verrucate +  and striate +
flattened +
cylindric +
3 (?) +  and 5 (?) +
opposite +  and alternate +
succulent +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (2 cm20 mm <br />0.02 m <br />) +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
verrucate +
Canescentes +, Confertifoliae +, Nuttallianae +, Obione sect. Deserticola +  and Obione subg. Pterochiton +
Atriplex acanthocarpa +
Atriplex subg. Pterochiton +
species +
spicate +  and naked +
spicate +  and naked +
tuberculate +
flattened +  and hornlike +
0 cm0 mm <br />0 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
dicotyledonous +
subshrub +  and shrub +
4dm +  and 10dm +