Gaillardia arizonica

A. Gray in A. Gray et al.

in A. Gray et al., Syn. Fl. N. Amer. 1(2): 353. 1884.

Synonyms: Gaillardia arizonica var. pringlei (Rydberg) S. F. Blake
Treatment appears in FNA Volume 21. Treatment on page 426. Mentioned on page 422.

Annuals, 5–40 cm. Leaves mostly basal, mostly restricted to proximal 1/5 (–1/3+); petiolar bases 0–2+ cm; blades oblanceolate, obovate, or spatulate, 3–6 (–9) cm × 5–25 mm, mostly raggedly pinnately lobed, sometimes entire, sparsely to densely villous with jointed hairs. Peduncles 5–35 cm. Phyllaries 14–20, lanceolate to lance-attenuate, 6–12+ mm, ciliate with jointed hairs. Receptacular setae 0 or 0.3–0.8 mm. Ray-florets 10–13; corollas yellow to orange, 17–22 mm. Disc-florets 40–100+; corollas yellow, tubes 0.6–0.8 mm, throats campanulate, 2.8–3 mm, lobes deltate, 0.5–0.7 mm, jointed hairs to 0.3 mm. Cypselae obpyramidal, 2 mm, hairs 2 mm, inserted at bases and on angles and faces; pappi of 8–10 obovate or ovate to lanceolate, aristate or muticous scales 2–5 mm (if aristate, scarious bases 2–3.5 × 1.3–1.6 mm). 2n = 34.


Phenology: Flowering Mar–May.
Habitat: Sandy desert washes and fans
Elevation: 300–1200 m

Distribution

V21-1065-distribution-map.gif

Ariz., Nev., Utah, Mexico (Sonora)

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Gaillardia arizonica"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
A. Gray in A. Gray et al. +
decurrent +
compound +  and simple +
6 cm60 mm <br />0.06 m <br /> (9 cm90 mm <br />0.09 m <br />) +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
lobed;spatulate;obovate;spatulate;obovate;oblanceolate +
5mm;25mm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
yellow +  and orange +
1.7 cm17 mm <br />0.017 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
obpyramidal +
fertile +  and bisexual +
fertile +  and bisexual +
Ariz. +, Nev. +, Utah +  and Mexico (Sonora) +
300–1200 m +
glabrous +  and villous +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Sandy desert washes and fans +
2 cm20 mm <br />0.02 m <br /> (0 cm0 mm <br />0 m <br />) +
discoid +  and radiate +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.9 cm9 mm <br />0.009 m <br /> (2 cm20 mm <br />0.02 m <br />) +
hemispheric;nearly rotate +
sessile +  and petiolate +
basal +  and proximal +
1/5 (?) +  and 1/3 (?) +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
connate +  and distinct +
ovate +, oblong +, oblanceolate +, linear +, lanceolate +  and elliptic +
unequal +  and subequal +
2-carpellate +
persistent +
5 cm50 mm <br />0.05 m <br /> (35 cm350 mm <br />0.35 m <br />) +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Flowering Mar–May. +
14 +  and 20 +
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
in A. Gray et al., Syn. Fl. N. Amer. +
styliferous +, pistillate +  and neuter +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
convex;hemispheric +
8 +  and 10 +
ovate +  and lanceolate aristate or muticous +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Gaillardia arizonica var. pringlei +
Gaillardia arizonica +
Gaillardia +
species +
campanulate +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
much shorter than ampliate +
campanulate +  and cylindric or urceolate +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
entire +  and toothed +
5 cm50 mm <br />0.05 m <br /> (40 cm400 mm <br />0.4 m <br />) +