Gaillardia amblyodon

Gay

Ann. Sci. Nat., Bot., sér. 2, 12: 62. 1839.

Endemic
Treatment appears in FNA Volume 21. Treatment on page 425. Mentioned on page 423.

Annuals, 20–45+ cm. Leaves cauline; petiolar bases 0–3+ cm; blades oblanceolate, oblong, or spatulate, 2–6 cm × 6–24 mm, (bases of distal ± clasping) margins usually entire or obscurely toothed, rarely lobed, faces scabrellous and/or ± villous (hairs scattered, jointed). Peduncles 5–10 (–15) cm. Phyllaries 22–32, lanceolate to lance-attenuate, 7–15 mm, ciliate with jointed hairs. Receptacular setae 2.5–3 mm. Ray-florets 8–12; corollas mostly bright red to dark purple, rarely yellow, 15–25 mm. Disc-florets 30–60+; corollas yellow with purple tips, tubes 1.5 mm, throats narrowly cylindric, 4.5 mm, lobes ovate-deltate, 0.5–1 mm, jointed hairs more than 0.3 mm. Cypselae dimorphic: the peripheral usually ± obcompressed-clavate, 2–4+ mm, glabrous or nearly so, with pappi of (6–) 8+, muticous scales 0.1–0.3+ mm; the inner obpyramidal, 2–3 mm, hairs 1–3 mm, inserted at bases and on angles, with pappi of 8–12 lanceolate, aristate scales 5–6 mm (scarious bases 2.5–3 × 0.5–1 mm). 2n = 34.


Phenology: Flowering Apr–Jul.
Habitat: Open places on sandy soils
Elevation: 10–100+ m

Discussion

Gaillardia amblyodon may prove to be not distinct from G. pulchella at species rank.

Selected References

None.

Lower Taxa

None.
... more about "Gaillardia amblyodon"
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 +
decurrent +
compound +  and simple +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
spatulate;oblong;spatulate;oblong;oblanceolate +
6mm;24mm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
yellow +, mostly bright red +  and dark purple +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
nearly +  and glabrous +
obcompressed-clavate +
fertile +  and bisexual +
fertile +  and bisexual +
10–100+ m +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open places on sandy soils +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
discoid +  and radiate +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (2 cm20 mm <br />0.02 m <br />) +
hemispheric;nearly rotate +
sessile +  and petiolate +
ovate-deltate +
dentate to pinnatifid or palmatifid +  and entire +
lobed +, toothed +  and entire +
connate +  and distinct +
ovate +, oblong +, oblanceolate +, linear +, lanceolate +  and elliptic +
unequal +  and subequal +
2-carpellate +
persistent +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
10 cm100 mm <br />0.1 m <br /> (15 cm150 mm <br />0.15 m <br />) +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
0 cm0 mm <br />0 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Flowering Apr–Jul. +
22 +  and 32 +
0.7 cm7 mm <br />0.007 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Ann. Sci. Nat., Bot., sér. +
styliferous +, pistillate +  and neuter +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
convex;hemispheric +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
8 +  and 12 +
aristate +, lanceolate +  and muticous +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Compositae +
Gaillardia amblyodon +
Gaillardia +
species +
cylindric +
4.5 cm45 mm <br />0.045 m <br /> (?) +
much shorter than ampliate +
campanulate +  and cylindric or urceolate +
1.5 cm15 mm <br />0.015 m <br /> (?) +
entire +  and toothed +
20 cm200 mm <br />0.2 m <br /> (45 cm450 mm <br />0.45 m <br />) +