Gaillardia pinnatifida

Torrey

Ann. Lyceum Nat. Hist. New York 2: 214. 1827.

Synonyms: Gaillardia flava Rydberg Gaillardia gracilis A. Nelson Gaillardia mearnsii Rydberg Gaillardia pinnatifida var. linearis (Rydberg) Biddulph
Treatment appears in FNA Volume 21. Treatment on page 423.

Perennials (sometimes flowering first-year, sometimes rhizomatous), (5–) 15–35+ cm. Leaves basal and cauline, mostly restricted to proximal 1/3–1/2; petiolar bases 0–5+ cm; blades mostly oblanceolate to spatulate, 3–6 (–12) cm × 3–18 (–30) mm, margins mostly pinnatifid, distal sometimes toothed or entire (rarely all linear, entire), faces closely strigillose to shaggily villous. Peduncles (4–) 8–25+ cm. Phyllaries 20–30, ovate to lanceolate-attenuate, 7–12+ mm, hispidulous to villous (hairs often jointed). Receptacular setae usually 1–3 mm, rarely wanting. Ray-florets 0 or 5–14; corollas usually uniformly yellow, sometimes proximally and/or abaxially reddish, 10–25+ mm. Disc-florets (30–) 60–100+; corollas usually proximally ochroleucous or yellow and distally purplish, rarely wholly yellow, tubes 0.8–1 mm, throats campanulate to plumply urceolate, 3–4.5 mm, lobes broadly deltate to deltate-ovate, 0.5–1 mm, jointed hairs 0.3+ mm. Cypselae obpyramidal, 1–3 mm, hairs 1–2 mm, inserted at bases and on angles and faces; pappi of 8–11 lanceolate, aristate scales 3–7 mm (scarious bases 1.5–4 × 0.5–1.5 mm). 2n = 34.


Phenology: Flowering Mar–Oct, mostly May–Jul.
Habitat: Clays or sandy soils, often disturbed places, in grasslands, desert scrub-lands, or pinyon woodlands
Elevation: 900–2000 m

Distribution

V21-1055-distribution-map.gif

Ariz., Colo., Nev., N.Mex., Okla., Tex., Utah, Mexico (Chihuahua), Mexico (Coahuila), Mexico (Durango), Mexico (Sonora)

Discussion

Some plants, especially from Arizona, included here in Gaillardia pinnatifida, have mostly narrow, undivided leaf blades (mostly 3–8+ mm wide, villous to sparsely strigillose; var. linearis) and intergrade with similar plants called G. multiceps, which have sparsely and minutely hispidulous or glabrate leaf blades.

Plants from Utah with yellow disc corollas and densely gland-dotted leaves, included here in Gaillardia pinnatifida, have been recognized as G. flava.

Selected References

None.

Lower Taxa

None.
... more about "Gaillardia pinnatifida"
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 +
Torrey +
decurrent +
compound +  and simple +
6 cm60 mm <br />0.06 m <br /> (12 cm120 mm <br />0.12 m <br />) +
1.8 cm18 mm <br />0.018 m <br /> (3 cm30 mm <br />0.03 m <br />) +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
mostly oblanceolate;spatulate +
3mm;18mm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
yellow +, yellow and distally purplish +, ochroleucous +  and reddish +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
obpyramidal +
fertile +  and bisexual +
fertile +  and bisexual +
Ariz. +, Colo. +, Nev. +, N.Mex. +, Okla. +, Tex. +, Utah +, Mexico (Chihuahua) +, Mexico (Coahuila) +, Mexico (Durango) +  and Mexico (Sonora) +
900–2000 m +
closely strigillose +  and shaggily villous +
scabrellous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Clays or sandy soils, often disturbed places, in grasslands, desert scrub-lands, or pinyon woodlands +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 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 +
proximal +, cauline +  and basal +
1/3 (?) +  and 1/2 (?) +
broadly deltate +  and deltate-ovate +
dentate to pinnatifid or palmatifid +  and entire +
pinnatifid +
connate +  and distinct +
ovate +, oblong +, oblanceolate +, linear +, lanceolate +  and elliptic +
unequal +  and subequal +
2-carpellate +
persistent +
4 cm40 mm <br />0.04 m <br /> (8 cm80 mm <br />0.08 m <br />) +
8 cm80 mm <br />0.08 m <br /> (25 cm250 mm <br />0.25 m <br />) +
0 cm0 mm <br />0 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Flowering Mar–Oct, mostly May–Jul. +
hispidulous +  and villous +
20 +  and 30 +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Ann. Lyceum Nat. Hist. New York +
styliferous +, pistillate +  and neuter +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
convex;hemispheric +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
8 +  and 11 +
aristate +  and lanceolate +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Gaillardia flava +, Gaillardia gracilis +, Gaillardia mearnsii +  and Gaillardia pinnatifida var. linearis +
Gaillardia pinnatifida +
Gaillardia +
species +
campanulate +  and plumply urceolate +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
much shorter than ampliate +
campanulate +  and cylindric or urceolate +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
entire +  and toothed +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
15 cm150 mm <br />0.15 m <br /> (35 cm350 mm <br />0.35 m <br />) +