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garden coreopsis, lance-leaf coreopsis, lance-leaf tick-seed, lanced-leaf coreopsis, sand coreopsis

Habit Perennials, 10–30(–60+) 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.

Ray laminae

yellow, 15–30+ mm.

Disc corollas

6–7.5 mm, apices yellow.

Phyllaries

deltate to lance-deltate, 8–12+ mm.

Calyculi

of lance-ovate to lance-linear or linear bractlets 4–8(–12) mm.

Cypselae

(2.6–)3–4 mm, wings ± spreading, ± chartaceous, entire.

Aerial

nodes proximal to first peduncle usually 1–3(–5+), distalmost 1–3 internodes 1–2(–8+) cm.

2n

= 26 (+ 0–4B).

Coreopsis lanceolata

Phenology Flowering (Mar–)May–Jul(–Aug).
Habitat Sandy soils, ditches and roadsides, other disturbed sites
Elevation 30–500(–1000+) m (100–1600(–3300+) ft)
Distribution
from FNA
AL; AR; FL; GA; IL; IN; KS; KY; LA; MD; MI; MO; MS; NC; NJ; NM; NY; OH; OK; PA; SC; TN; TX; VA; VT; WI; WV; BC; ON
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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.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 21, p. 194.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Coreopsidinae > Coreopsis > sect. Coreopsis
Sibling taxa
C. auriculata, C. basalis, C. bigelovii, C. californica, C. calliopsidea, C. delphiniifolia, C. douglasii, C. gigantea, C. gladiata, C. grandiflora, C. hamiltonii, C. integrifolia, C. intermedia, C. latifolia, C. leavenworthii, C. major, C. maritima, C. nudata, C. nuecensis, C. palmata, C. pubescens, C. pulchra, C. rosea, C. stillmanii, C. tinctoria, C. tripteris, C. verticillata
Name authority Linnaeus: Sp. Pl. 2: 908. (1753)
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