Ericameria paniculata

(A. Gray) Rydberg

Fl. Rocky Mts., 1066. 1917.

Common names: Mojave or punctate rabbitbrush
Endemic
Basionym: Bigelowia paniculata A. Gray Proc. Amer. Acad. Arts 8: 644. 1873 (as Bigelovia)
Synonyms: Chrysothamnus paniculatus (A. Gray) H. M. Hall
Treatment appears in FNA Volume 20. Treatment on page 71. Mentioned on page 53.

Plants 50–200 cm. Stems erect to spreading, green when young, often black-banded or splotched (from fungal infections), fastigiately branched, glabrous, gland-dotted, resinous. Leaves mostly ascending; blades filiform (adaxially sulcate), 10–35 × 0.5–1.5 mm, midnerves obscure, apices apiculate, faces glabrous, gland-dotted (in circular, deep pits), resinous; axillary fascicles usually absent. Heads in paniculiform arrays (5–50 mm wide). Peduncles 2–12 mm (bracts 0–10, leaflike). Involucres subcylindric, 5.5–9 × 3.5–7 mm. Phyllaries 13–20 in 3–5 series, tan, lanceolate to elliptic, 1–5 × 0.5–1.7 mm, unequal, mostly chartaceous, membranous, midnerves not or slightly raised, faint on distal 1/2, (margins entire, sometimes ciliate distally) apices erect, acute to rounded, apiculate, abaxial faces glabrous, ± resinous. Ray-florets 0. Disc-florets 5–8; corollas 5–7 mm. Cypselae tan to brown, narrowly elliptic to oblanceoloid, 3.5–4.5 mm (ribs ca. 5), sericeous; pappi off-white to brown, 5.5–6.5 mm. 2n = 18.


Phenology: Flowering late summer–fall.
Habitat: Stony open deserts and washes
Elevation: 400–1600 m

Distribution

V20-127-distribution-map.gif

Ariz., Calif., Nev., Utah.

Discussion

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

... more about "Ericameria paniculata"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +
indeterminate +  and determinate +
Lowell E. Urbatsch +, Loran C. Anderson +, Roland P. Roberts +  and Kurt M. Neubig +
(A. Gray) Rydberg +
decurrent +
Bigelowia paniculata +
compound +  and simple +
1 cm10 mm <br />0.01 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
filiform +
0.5mm;1.5mm +
rugulose +  and muricate +
tan +  and reddish +
subequal +
Mojave or punctate rabbitbrush +
not 2-lipped +  and actinomorphic +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
tan +  and brown +
narrowly elliptic +  and oblanceoloid +
fertile +  and bisexual +
fertile +  and bisexual +
Ariz. +, Calif. +, Nev. +  and Utah. +
400–1600 m +
resinous +
gland-dotted +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Stony open deserts and washes +
thyrsiform +, paniculiform +, branched +, racemiform +, cymiform +, discoid +  and radiate +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
subcylindric +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
sessile +  and petiolate +
erect;spreading or reflexed +
deltate +  and triangular +
faint +, raised +  and obscure +
2-carpellate +
off-white +  and brown +
persistent +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Flowering late summer–fall. +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
lanceolate +  and elliptic +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
Fl. Rocky Mts., +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
resinous +
gland-dotted +, splotched +, black-banded +  and green +
erect +  and spreading +
lanceolate +  and subulate +
appendaged +  and truncate +
papillate +  and smooth +
Chrysothamnus paniculatus +
Ericameria paniculata +
Ericameria +
species +
campanulate +
perennial +, biennial +  and annual +