Atriplex cordulata

Jepson

Pittonia 2: 304. 1892.

Common names: Heart-leaf orach
EndemicConservation concern
Synonyms: Obione cordulata (Jepson) Ulbrich
Treatment appears in FNA Volume 4. Treatment on page 358. Mentioned on page 327, 328, 357, 359.

Herbs, erect, simple, oppositely or alternately branched from base and sparingly so distally, rigid, scurfy, 1–5 dm. Stems slender to rather coarse, initially erect-ascending, finally spreading-ascending, scurfy when young. Leaves alternate except proximalmost ones, blade ovate to cordate-ovate, 5–15 (–20) × 3–10 (–13) mm; base mostly cordate (to rounded), margin entire or denticulate, apex acute to attenuate, thickish and scurfy-tomentose. Flowers of both sexes mixed in small axillary clusters. Staminate flowers in glomerules in distal axils, 4–5-merous. Fruiting bracteoles sessile or subsessile, round-ovate (semiorbiculate) to deltoid-rhombic or flabellate, slightly compressed, 3–5 mm and as broad, united to middle, deeply toothed, margin with acute teeth, terminal tooth subequal to others or largest, thin and soft at margin, hard at center, scarcely though sometimes tuberculate on faces. Seeds deep redbrown, 1.5–1.8 mm. 2n = 36, 54.

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Key

1 Anthers red or purple; fruiting bracteoles 4-5 mm, central tooth largest; wc California Atriplex cordulata var. cordulata
1 Anthers yellow; fruiting bracteoles 3-3.5 mm, central tooth subequal to lateral; Kern, Kings, and Tulare counties, California Atriplex cordulata var. erecticaulis
... more about "Atriplex cordulata"
scurfy-tomentose +
Acute (?) +  and Attenuate (?) +
thickish +
Stanley L. Welsh +
Jepson +
slippery +
aromatic +
cordate +
Pusillae +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
ovate +  and cordate-ovate +
3mm;10mm +
persistent +  and deciduous +
reddish-brown +, black +, brown +  and green +
0 +  and 1/2 +
cuneate +  and ovate or obovate +
3-5-parted +
Heart-leaf orach +
smooth +  and tuberculate +
4-5-merous +  and staminate +
rarely +  and lacking +
unisexual +  and bisexual +
not +  and connate +
enlarged +
bladderlike +
terminal +  and axillary +
deciduous +  and persistent +
not winged +  and winged +
entire +  and serrate +
denticulate +  and entire +
subsessile +  and sessile +
toothed +, compressed +, round-ovate +  and deltoid-rhombic or flabellate +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
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 +
Endemic +  and Conservation concern +
cylindric +
3 (?) +  and 5 (?) +
opposite +  and alternate +
spreading-ascending +  and erect-ascending +
slender +
succulent +
sessile +  and petiolate +
reduced;small +
horizontal +  and vertical +
verrucate +
Obione cordulata +
Atriplex cordulata +
Atriplex subsect. Pusillae +
species +
subequal +  and largest +
dicotyledonous +
branched +  and simple +