Ericameria arizonica

R. P. Roberts

Sida 21: 1558, fig. 1. 2005.

Common names: Arizona goldenbush
EndemicConservation concern
Treatment appears in FNA Volume 20. Treatment on page 55. Mentioned on page 53.

Plants 20–50 cm. Stems erect to spreading, reddish tan, becoming darker, branched, short-stipitate-glandular, usually resinous. Leaves ascending to spreading; blades elliptic to narrowly oblanceolate (flat or somewhat concave adaxially), 10–35 × 2–5 mm, midnerves evident (often with 1–2 fainter, collateral veins), apices acute, apiculate, faces short-stipitate-glandular, usually gland-dotted; axillary fascicles absent. Heads in cymiform arrays (to 4 cm wide). Peduncles 1–10 mm (bracts 1–5, resembling phyllaries, stipitate-glandular). Involucres obconic, 5.5–7.5 × 2.5–4 mm. Phyllaries 30–40 in 4–5 series, tan, lanceolate to elliptic, 2–7 × 0.5–1.2 mm, strongly unequal, mostly chartaceous (bodies abruptly constricted at bases of appendages), midnerves faint, (margins membranous, sparsely ciliate apically), apices (usually recurved) usually acute to cuspidate, sometimes long-acuminate, abaxial faces glabrate, often gland-dotted. Ray-florets 1–8; laminae elliptic, 3–4 × 0.8–1.3 mm. Disc-florets 5–15; corollas 5–7 mm. Cypselae usually tan, sometimes reddish, narrowly obconic, 4–5.5 mm, glabrous or densely sericeous; pappi whitish tan, 4–5.5 mm.


Phenology: Flowering fall.
Habitat: Rock faces, cracks, and crevices and stony soils, usually on limestone
Elevation: ca. 2100 m

Discussion

Of conservation concern.

Ericameria arizonica grows in the Grand Canyon.

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

... more about "Ericameria arizonica"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
Lowell E. Urbatsch +, Loran C. Anderson +, Roland P. Roberts +  and Kurt M. Neubig +
R. P. Roberts +
decurrent +
compound +  and simple +
1 cm10 mm <br />0.01 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
elliptic;narrowly oblanceolate +
2mm;5mm +
rugulose +  and muricate +
tan +  and reddish +
subequal +
Arizona goldenbush +
not 2-lipped +  and actinomorphic +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
reddish +  and tan +
sericeous +  and glabrous +
fertile +  and bisexual +
fertile +  and bisexual +
ca. 2100 m +
resinous +
gland-dotted +
short-stipitate-glandular +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Rock faces, cracks, and crevices and stony soils, usually on limestone +
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 /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.8mm;1.3mm +
sessile +  and petiolate +
erect;spreading or reflexed +
deltate +  and triangular +
faint +  and evident +
2-carpellate +
whitish tan +
persistent +
0.4 cm4 mm <br />0.004 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Flowering fall. +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
lanceolate +  and elliptic +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
Endemic +  and Conservation concern +
resinous +
darker +  and reddish tan +
erect +  and spreading +
lanceolate +  and subulate +
appendaged +  and truncate +
papillate +  and smooth +
Haplopappus sect. Asiris +, Haplopappus sect. Ericameria +, Haplopappus sect. Macronema +  and Haplopappus sect. Stenotopsis +
Ericameria arizonica +
Ericameria +
species +
campanulate +
perennial +, biennial +  and annual +