Coreopsis lanceolata

Linnaeus

Sp. Pl. 2: 908. 1753.

IllustratedEndemic
Treatment appears in FNA Volume 21. Treatment on page 194. Mentioned on page 185, 193.

Perennials, 10–30 (–60+) cm. Aerial nodes proximal to first peduncle usually 1–3 (–5+), distalmost 1–3 internodes 1–2 (–8+) cm. Leaves: basal and cauline on proximal 1/4–1/3 (–1/2) of plant heights; petioles 1–5 (–8+) cm; blades simple or with 1–2+ lateral lobes, simple blades or terminal lobes lanceovate or lanceolate to oblanceolate or lance-linear, 5–12 cm × 8–15 (–18+) mm. Peduncles (8–) 12–20 (–35+) cm. Calyculi of lanceovate to lance-linear or linear bractlets 4–8 (–12) mm. Phyllaries deltate to lance-deltate, 8–12+ mm. Ray laminae yellow, 15–30+ mm. Disc corollas 6–7.5 mm, apices yellow. Cypselae (2.6–) 3–4 mm, wings ± spreading, ± chartaceous, entire. 2n = 26 (+ 0–4B).


Phenology: Flowering (Mar–)May–Jul(–Aug).
Habitat: Sandy soils, ditches and roadsides, other disturbed sites
Elevation: 30–500(–1000+) m

Distribution

V21-476-distribution-map.gif

B.C., Ont., Ala., Ark., Fla., Ga., Ill., Ind., Kans., Ky., La., Md., Mich., Miss., Mo., N.J., N.Mex., N.Y., N.C., Ohio, Okla., Pa., S.C., Tenn., Tex., Vt., Va., W.Va., Wis.

Discussion

Plants that have been called Coreopsis lanceolata var. villosa Michaux often have 5+ aerial internodes 6+ cm long proximal to the first peduncle; they may merit recognition as a distinct taxon or may be hybrids (or derivatives) from crosses between C. lanceolata and C. pubescens.

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Coreopsis lanceolata"
not tailed +, rounded +  and obtuse +
dark +  and pale +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
paniculiform +, cymiform +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
Linnaeus +
smooth +  and ciliate or barbed +
1 +  and 2 +
purple +  and redbrown +
decurrent +
simple +  and with 1-2+ lateral lobes +
1.5 cm15 mm <br />0.015 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
5 cm50 mm <br />0.05 m <br /> (12 cm120 mm <br />0.12 m <br />) +
lanceolate;oblanceolate or lance-linear +
8mm;15mm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
linear +  and lance-linear +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
barbellulate +  and barbellate +
winged +  and thin-margined +
0.26 cm2.6 mm <br />0.0026 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
obovate +  and oblong +
fertile +  and bisexual +
0.6 cm6 mm <br />0.006 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
fertile +  and bisexual +
B.C. +, Ont. +, Ala. +, Ark. +, Fla. +, Ga. +, Ill. +, Ind. +, Kans. +, Ky. +, La. +, Md. +, Mich. +, Miss. +, Mo. +, N.J. +, N.Mex. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, S.C. +, Tenn. +, Tex. +, Vt. +, Va. +, W.Va. +  and Wis. +
30–500(–1000+) m +
papillate +  and smooth +
linear-fusiform;4-angled;ovate;orbiculate;oblong;linear;cuneate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Sandy soils, ditches and roadsides, other disturbed sites +
discoid +  and radiate +
in open , more or less corymbiform arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
less globose;cylindric +
broadest +
sessile +  and petiolate +
cauline +  and basal +
less deltate +  and lanceovate +
dentate to pinnatifid or palmatifid +  and entire +
distalmost +  and proximal +
1 +  and 3 +
2-carpellate +
attenuate;less lanceolate;linear +
persistent +
of 1-2 , smooth to ciliate or barbed awns or scales +  and coroniform +
20 cm200 mm <br />0.2 m <br /> (35 cm350 mm <br />0.35 m <br />) +
12 cm120 mm <br />0.12 m <br /> (20 cm200 mm <br />0.2 m <br />) +
5 cm50 mm <br />0.05 m <br /> (8 cm80 mm <br />0.08 m <br />) +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Flowering (Mar–)May–Jul(–Aug). +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
fertile +  and sterile +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
subulate +  and lanceolate +
exalbuminous +
Illustrated +  and Endemic +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Coreopsideae +  and Undefined (tribe Undefined) subtribe Petrobiinae +
Coreopsis lanceolata +
Coreopsis sect. Coreopsis +
species +
1.5 cm15 mm <br />0.015 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
5 cm50 mm <br />0.05 m <br /> (12 cm120 mm <br />0.12 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
toothed +  and entire +
30 cm300 mm <br />0.3 m <br /> (60 cm600 mm <br />0.6 m <br />) +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
shrub +  and subshrub +
not ciliolate +
rarely irregularly toothed +  and pectinate +
membranous +