Atriplex serenana

A. Nelson ex Abrams

Fl. Los Angeles, 128. 1904.

Common names: Stinking orach bracteate orach
Treatment appears in FNA Volume 4. Treatment on page 361. Mentioned on page 329.

Herbs, annual, erect or sprawling, usually branched often forming tangled mats to 10 × (3–) 5–20 dm, ascending branches sparsely scurfy. Leaves many, subsessile or very short petiolate; blade subconcolorous, lanceolate to oblong, elliptic, or oval, (8–) 10–30 (–40) × 3–12 (–15) mm, margin sharply dentate to entire. Staminate flowers in glomerules in terminal spikes or panicles 3–20 cm, or reduced to solitary, rounded, terminal glomerule. Pistillate flower in small clusters, axillary. Fruiting bracteoles sessile or subsessile (stipe to 1 mm), cuneate-orbicular to obovate, somewhat compressed, 2.1–3.5 × (1.7–) 2–3.7 mm, united 1/2 of length, margin sharply and often slenderly toothed beyond middle, faces often rather strongly veined, smooth or with 1 or more slender or flattened appendages. Seeds brown, 1–1.3 (–1.5) mm. 2n = 18.

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Key

1 Staminate inflorescence an elongate panicle or spike bearing numerous, beadlike glomerules; fruiting bracteoles ± 1-veined; mainly of central valley and Owens Valley, to w Nevada, also coastal and insu- lar, s California Atriplex serenana var. serenana
1 Staminate inflorescence of solitary, terminal, subglobose glomerule; fruiting bracteoles 3-veined; coastal s California Atriplex serenana var. davidsonii

"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 serenana"
Stanley L. Welsh +
A. Nelson ex Abrams +
slippery +
aromatic +
subsessile +, sessile +  and monomorphic +
broadest +
Arenariae +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
subconcolorous +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
lanceolate +  and oblong elliptic or oval +
3mm;12mm +
persistent +  and deciduous +
reddish-brown +, black +, brown +  and green +
0 +  and 1/2 +
cuneate +  and ovate or obovate +
3-5-parted +
Stinking orach +  and bracteate orach +
Calif. +, Nev. +  and nw Mexico +
with 1 or moreslender or flattened appendages +  and smooth +
tuberculate +  and smooth +
pistillate +  and staminate +
rarely +  and lacking +
unisexual +  and bisexual +
reduced +
not +  and connate +
enlarged +
bladderlike +
terminal +  and axillary +
petiolate +  and subsessile +
deciduous +  and persistent +
not winged +  and winged +
sharply dentate +  and entire +
inferior +, half-inferior +  and superior +
crassinucellate +  and bitegmic +
campylotropous +
1 +  and single +
3 cm30 mm <br />0.03 m <br /> (20 cm200 mm <br />0.2 m <br />) +
persistent +  and deciduous +
(1-)3-5-lobed +
papery +  and chartaceous +
Fl. Los Angeles, +
bulbous +  and taprooted +
fusiform +
fleshy +  and fibrous +
verrucate +  and striate +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
flattened +
cylindric +
3 (?) +  and 5 (?) +
opposite +  and alternate +
succulent +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
verrucate +
Atriplex sect. Obione +
Atriplex serenana +
Atriplex subsect. Arenariae +
species +
dicotyledonous +
subsessile +  and sessile +
compressed;cuneate-orbicular;obovate +
5dm +  and 20dm +