Atriplex matamorensis

A. Nelson

Proc. Amer. Acad. Arts 9: 118. 1874, not Villars 1779.

Treatment appears in FNA Volume 4. Treatment on page 367. Mentioned on page 324.

Herbs, dioecious, from woody taproot, erect or ascending, branching at base, sparsely branched distally or simple, 1–4 dm, woody at base somewhat scurfy. Stems terete, slender, densely leafy, rather sparsely and closely scurfy. Leaves possibly Kranz-type (difficult to determine), mostly opposite; blade oblong or oblong-lanceolate, 2–5 mm, subequal to internodes, broadest at middle, apex acute, densely grayish scurfy. Pistillate flowers solitary or in small, axillary glomerules in stout leafy spikes. Fruiting bracteoles sessile, suborbiculate, strongly compressed, 2–3 mm and broad, united to beyond middle, dentate to near base, triangular teeth acute, terminal 1 longest, faces 3-veined, scurfy. Seeds yellowish, 1 mm wide.


Phenology: Flowering summer and fall.
Habitat: Saline soils, coastal areas, often along roadsides, other disturbed areas
Elevation: 0-50 m

Discussion

The quelite cenizo is a very distinctive, small, bushy perennial with numerous, ascending branches and tiny leaves. It is here tentatively placed adjacent to the other dioecious, herbaceous perennial, Atriplex watsonii, from which it differs in many ways (compare descriptions). Possibly its near relatives are in adjacent Mexico, which is beyond the consideration of the present paper; certainly it is one of the most distinctive of the herbaceous taxa. According to H. M. Hall and F. E. Clements (1923), the relationships of this species lie with A. watsonii, but it is more closely similar to A. elegans in the strongly compressed, nearly orbicular, and evenly dentate bracteoles. However, both A. watsonii and A. matamorensis have opposite leaves and share the feature of the pericarp being dilated around the thickened stigma bases.

Selected References

None.

Lower Taxa

None.

"longest" is not a number.

... more about "Atriplex matamorensis"
Stanley L. Welsh +
A. Nelson +
slippery +
aromatic +
Californicae +
oblong-lanceolate +  and oblong +
subequal +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
broadest +
persistent +  and deciduous +
reddish-brown +, black +, brown +  and green +
0 +  and 1/2 +
cuneate +  and ovate or obovate +
3-5-parted +
Tex. +  and Mexico +
0-50 m +
in small , axillary glomerules +  and solitary +
rarely +  and lacking +
unisexual +  and bisexual +
not +  and connate +
enlarged +
Saline soils, coastal areas, often along roadsides, other disturbed areas +
bladderlike +
terminal +  and axillary +
deciduous +  and persistent +
not winged +  and winged +
dentate +  and entire +
lobed +  and serrate-dentate +
compressed +  and suborbiculate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
inferior +, half-inferior +  and superior +
crassinucellate +  and bitegmic +
campylotropous +
1 +  and single +
persistent +  and deciduous +
(1-)3-5-lobed +
papery +  and chartaceous +
Flowering summer and fall. +
Proc. Amer. Acad. Arts +
lateral +  and superior +
bulbous +  and taprooted +
fusiform +
fleshy +  and fibrous +
verrucate +  and striate +
flattened +
1 cm10 mm <br />0.01 m <br /> (?) +
cylindric +
3 (?) +  and 5 (?) +
opposite +  and alternate +
slender +
succulent +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
verrucate +
Atriplex sect. Obione +
Atriplex matamorensis +
Atriplex subsect. Californicae +
species +
acute +  and triangular +
dicotyledonous +
stipitate +, sessile +  and monomorphic +
simple +, branched +  and branching +