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 lance-ovate or lanceolate to oblanceolate or lance-linear, 5–12 cm × 8–15(–18+) mm. Peduncles (8–)12–20(–35+) cm. Calyculi of lance-ovate 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.
... more about "Coreopsis lanceolata"
John L. Strother +
Linnaeus +
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 +
Sandy soils, ditches and roadsides, other disturbed sites +
Flowering (Mar–)May–Jul(–Aug). +
Illustrated +  and Endemic +
Undefined (tribe Undefined) subtribe Coreopsideae +  and Undefined (tribe Undefined) subtribe Petrobiinae +
Coreopsis lanceolata +
Coreopsis sect. Coreopsis +
species +