familyChenopodiaceae
genusAtriplex
subgenusAtriplex subg. Obione
sectionAtriplex sect. Obione
subsectionAtriplex subsect. Arenariae
speciesAtriplex serenana
Atriplex serenana var. davidsonii
Man. S. Calif. Bot., 598. 1935.
Common names: Davidson’s orach
Endemic
Basionym: Atriplex davidsonii Standley in N. L. Britton et al., N. Amer. Fl. 21: 57. 1 916
Treatment appears in FNA Volume 4. Treatment on page 361.
Staminate inflorescences of solitary, terminal, subglobose glomerules. Fruiting bracteole 3-veined, 2.5–3.5 × 2.4–3.7 mm.
Phenology: Flowering spring–fall.
Habitat: Bluffs, alkaline sinks and drainages
Elevation: 10-500 m
Discussion
L. Abrams and R. S. Ferris (1923–1960, vol. 2) maintained this taxon at the specific level; however, apart from the more apparently veined fruiting bracteoles and reduced staminate inflorescence, var. davidsonii is otherwise identical to var. serenana. It is often found growing with seepweed, samphire, numerous salt-tolerant annuals, other saltbush species.
Selected References
None.
Lower Taxa
None.
"/2" 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."dm" is not declared as a valid unit of measurement for this property.
... more about "Atriplex serenana var. davidsonii"
flattened +
inconspicuous +
lacking +
slippery +
dentate +
middle +
broadest +
entire +
subconcolorous +
absent +
1;5 +
foliaceous +
united +
dimorphic +
0 cm0 mm <br />0 m <br /> (?) +
absent +
ascending +
scurfy +
not crested +
3-5-parted +
Davidson’s orach +
Calif. +
coiled +
curved +
developing +
annular +
large +
storage +
common +
veined +
white +
clustered +
axillary +
rounded +
reduced +
appendaged +
mature +
enlarged +
thickened +
arranged +
bladderlike +
alternate +
toothed +
tangled +
connate +
attached +
campylotropous +
lacking +
imbricate +
absent +
inconspicuous +
accrescent +
fleshy +
(1-)3-5-lobed +
mottled +
free +
absent +
naked +
absent +
Man. S. Calif. Bot., +
1935 +
erect +
superior +
fusiform +
thickened +
scurfy +
inflated +
brown +
erect +
flattened +
Endemic +
paniculate +
cylindric +
absent +
jointed +
stellate +
silvery +
succulent +
lacking +
reduced;small +
fleshy +
1;3 +
prickly +
variable +
indistinct +
shiny +
verrucate +
Atriplex serenana var. davidsonii +
Atriplex serenana +
variety +
subglobose +
spicate +
adjacent +
elongate +
kranz-type +
dicotyledonous +
normal +
silvery +
scurfy +
united +
compressed;cuneate-orbicular;obovate +
branched +
annual +
sprawling;erect +
monoecious +