Coreopsis tinctoria

Nuttall

J. Acad. Nat. Sci. Philadelphia 2: 114. 1821.

Illustrated
Synonyms: Coreopsis atkinsoniana Douglas ex Lindley Coreopsis cardaminefolia Torrey & A. Gray Coreopsis tinctoria var. atkinsoniana (Douglas ex Lindley) H. M. Parker ex E. B. Smith Coreopsis tinctoria var. similis (F. E. Boynton) H. M. Parker ex E. B. Smith
Treatment appears in FNA Volume 21. Treatment on page 197. Mentioned on page 185, 198.

Annuals, (10–)30–70(–150+) cm. Leaves: proximal blades usually 1(–3)-pinnate, terminal lobes lance-ovate to oblanceolate, 10–60 × 5–25 mm; cauline blades usually 1–2(–3)-pinnate, rarely simple, simple blades or terminal lobes lance-linear to linear or filiform, 10–45 × 0.5–2(–5+) mm. Peduncles 1–5(–15+) cm. Calyculi of deltate-lanceolate bractlets 1–3+ mm. Phyllaries ± lance-oblong to lance-ovate, 4–7(–9) mm. Ray laminae usually yellow with red-brown blotch, sometimes red-brown in proximal 1/3–9/10 and distally yellow, rarely yellow throughout, 12–18+ mm. Disc corollas 2.5–3+ mm. Cypselae 1.5–3(–4+) mm, wings 0 or 0.1–0.7+ mm wide; pappi 0, or of 1–2 cusps or subulate scales 0.1–1+ mm. 2n = 24 (+ 0–2 Bs).


Phenology: Flowering year round, mostly Jun–Aug.
Habitat: Moist, sandy or clay soils, sometimes alkaline flats, prairies, ditches, disturbed places
Elevation: (0–)20–1500(–2000) m

Distribution

V21-487-distribution-map.gif

Alta., B.C., Man., Ont., Que., Sask., Ala., Ariz., Ark., Calif., Colo., Conn., Del., D.C., Fla., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Mont., Nebr., N.H., N.J., N.Mex., N.Y., N.C., N.Dak., Ohio, Okla., Oreg., Pa., R.I., S.C., S.Dak., Tenn., Tex., Vt., Va., Wash., W.Va., Wis., Wyo., Mexico (Coahuila, Nuevo León, Tamaulipas).

Discussion

Coreopsis tinctoria is widely grown in public and residential gardens, and commercially (for cut flowers), and has become widely established in the flora area.

As here circumscribed, Coreopsis tinctoria includes plants that others (without agreement among themselves) have treated as distinct species or infraspecific taxa: C. atkinsoniana (plants mostly 50–150+ cm, seldom branched from bases; cypselae 2.5–3 mm, “narrowly” winged; pappi 0.1–0.2 mm; mostly Idaho, Montana, Oregon, Washington), C. cardaminefolia (plants mostly 20–50 cm, seldom branched at bases; cypselae 2 mm, “narrowly to widely” winged; pappi 0 or 0.1–0.2 mm; mostly Arkansas, Kansas, Louisiana, Nebraska, Oklahoma, Texas), and C. tinctoria var. similis (plants mostly 10–30 cm, usually branched from bases; cypselae 2–3 mm, “widely” winged; pappi 0.2–1 mm; Texas and Mexico).

Selected References

None.

Lower Taxa

None.
... more about "Coreopsis tinctoria"
John L. Strother +
Nuttall +
Undefined sect. Calliopsis +
Alta. +, B.C. +, Man. +, Ont. +, Que. +, Sask. +, Ala. +, Ariz. +, Ark. +, Calif. +, Colo. +, Conn. +, Del. +, D.C. +, Fla. +, Ga. +, Idaho +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Mo. +, Mont. +, Nebr. +, N.H. +, N.J. +, N.Mex. +, N.Y. +, N.C. +, N.Dak. +, Ohio +, Okla. +, Oreg. +, Pa. +, R.I. +, S.C. +, S.Dak. +, Tenn. +, Tex. +, Vt. +, Va. +, Wash. +, W.Va. +, Wis. +, Wyo. +, Mexico (Coahuila +, Nuevo León +  and Tamaulipas). +
(0–)20–1500(–2000) m +
Moist, sandy or clay soils, sometimes alkaline flats, prairies, ditches, disturbed places +
Flowering year round, mostly Jun–Aug. +
J. Acad. Nat. Sci. Philadelphia +
Illustrated +
Coreopsis atkinsoniana +, Coreopsis cardaminefolia +, Coreopsis tinctoria var. atkinsoniana +  and Coreopsis tinctoria var. similis +
Coreopsis tinctoria +
Coreopsis sect. Calliopsis +
species +