Atriplex subsect. Arenariae

(Standley) S. L. Welsh

Rhodora 102: 423. 2001.

Basionym: Arenariae Standley in N. L. Britton et al., N. Amer. Fl. 21: 52. 1916
Treatment appears in FNA Volume 4. Treatment on page 360. Mentioned on page 327, 329.

Plants annual or perennial, erect or decumbent-ascending. Leaves alternate, short petiolate or sessile; blade typically widest at or beyond middle, margin entire or dentate. Staminate flowers in axillary glomerules or glomerules arranged in paniculate spikes. Fruiting bracteoles monomorphic, sessile or subsessile, united at base or to middle, broadest near or beyond base, dentate, faces smooth or tuberculate. Seeds: radicle superior.

Distribution

North America, Mexico

Discussion

Species ca. 12 (8 in the flora).

Members of this section occur in or near coastal regions from the eastern United States, south and west along the Gulf Coast, and along the coast and interior of California.

Selected References

None.

Stanley L. Welsh +
(Standley) S. L. Welsh +
slippery +
aromatic +
subsessile +, sessile +  and monomorphic +
broadest +
Arenariae +
lobed +  and serrate +
persistent +  and deciduous +
reddish-brown +, black +, brown +  and green +
0 +  and 1/2 +
cuneate +  and ovate or obovate +
3-5-parted +
North America +  and Mexico +
tuberculate +  and smooth +
rarely +  and lacking +
unisexual +  and bisexual +
not +  and connate +
enlarged +
bladderlike +
terminal +  and axillary +
sessile +, petiolate +  and short +
deciduous +  and persistent +
not winged +  and winged +
entire +  and serrate +
lobed +  and serrate-dentate +
inferior +, half-inferior +  and superior +
crassinucellate +  and bitegmic +
campylotropous +
1 +  and single +
persistent +  and deciduous +
(1-)3-5-lobed +
papery +  and chartaceous +
bulbous +  and taprooted +
fusiform +
fleshy +  and fibrous +
verrucate +  and striate +
flattened +
cylindric +
3 (?) +  and 5 (?) +
opposite +  and alternate +
succulent +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
verrucate +
Atriplex sect. Obione +
Atriplex subsect. Arenariae +
Atriplex sect. Obione +
subsection +
dicotyledonous +
perennial +  and annual +
decumbent-ascending;erect +