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

bigflower coreopsis, bigleaf tickseed, large-flower tickseed

Habit Perennials, 10–30(–60+) cm. Perennials, 40–60+ 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.

mostly cauline on proximal 2/3–7/8 of plant heights;

petioles 0 or 10–35+ mm;

blades usually 1(–2)-irregularly pinnately or ± pedately lobed with (3–)5–9+ lobes, rarely simple, simple blades or terminal lobes narrowly lanceolate to linear or filiform, 15–45(–90+) × (0.5–)2–8(–12+) mm.

Peduncles

(8–)12–20(–35+) cm.

8–15(–25+) cm.

Ray laminae

yellow, 15–30+ mm.

yellow, 12–25+ mm.

Disc corollas

6–7.5 mm, apices yellow.

3.3–4.8 mm, apices yellow.

Phyllaries

deltate to lance-deltate, 8–12+ mm.

lance-ovate, 7–9(–12) mm.

Calyculi

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

of lanceolate to linear bractlets 3.5–9+ mm.

Cypselae

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

2–3+ mm, wings spreading, ± chartaceous, entire or irregularly toothed to pectinate.

Aerial

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

nodes proximal to first peduncle usually 6–10+, distalmost 1–3 internodes 4–7+ cm.

2n

= 26 (+ 0–4B).

= 26 (+ 0–2B).

Coreopsis lanceolata

Coreopsis grandiflora

Phenology Flowering (Mar–)May–Jul(–Aug). Flowering May–Aug.
Habitat Sandy soils, ditches and roadsides, other disturbed sites Sandy soils, ditches and roadsides, other disturbed sites, granite and sandstone outcrops
Elevation 30–500(–1000+) m (100–1600(–3300+) ft) 30–300+ m (100–1000+ 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
[WildflowerSearch map]
[BONAP county map]
from FNA
AL; AR; CT; FL; GA; IA; IL; IN; KS; KY; LA; MD; ME; MI; MO; MS; NC; NJ; NM; NY; OH; OK; PA; RI; SC; TN; TX; VA; VT; WI; WV; ON; QC
[WildflowerSearch map]
[BONAP county map]
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.)

Coreopsis grandiflora var. inclinata J. R. Allison from glades in Alabama may merit recognition.

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

Source FNA vol. 21, p. 194. FNA vol. 21, p. 194.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Coreopsidinae > Coreopsis > sect. Coreopsis 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
C. auriculata, C. basalis, C. bigelovii, C. californica, C. calliopsidea, C. delphiniifolia, C. douglasii, C. gigantea, C. gladiata, C. hamiltonii, C. integrifolia, C. intermedia, C. lanceolata, 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
Synonyms C. grandiflora var. harveyana, C. grandiflora var. longipes, C. grandiflora var. saxicola, C. saxicola
Name authority Linnaeus: Sp. Pl. 2: 908. (1753) Hogg ex Sweet: Brit. Fl. Gard. 2: plate 175. (1826)
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