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

tall coreopsis, tall tickseed

Habit Perennials, 10–30(–60+) cm. Perennials, 90–180+ 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.

petioles 5–45 mm;

blades usually 3-foliolate, leaflets usually simple, sometimes ± pinnately lobed, ultimate blades ± lanceolate, 4–9(–12+) cm × (9–)12–35+ mm.

Peduncles

(8–)12–20(–35+) cm.

2–5+ cm.

Ray laminae

yellow, 15–30+ mm.

12–22+ mm.

Disc florets/Disc corollas

6–7.5 mm, apices yellow.

40–80+;

corollas red-brown to purplish, 5–6 mm.

Phyllaries

deltate to lance-deltate, 8–12+ mm.

8, ± oblong to lance-oblong, 6–8 mm.

Calyculi

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

of 5–6 oblong bractlets 1.5–5 mm.

Cypselae

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

obovate to oblong, 4–5(–6) mm.

Aerial

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

Internodes

(± mid stem) 3–7(–10+) cm.

2n

= 26 (+ 0–4B).

= 26.

Coreopsis lanceolata

Coreopsis tripteris

Phenology Flowering (Mar–)May–Jul(–Aug). Flowering Jul–Sep.
Habitat Sandy soils, ditches and roadsides, other disturbed sites Heavy loams, moist sands, along streams, boggy meadows
Elevation 30–500(–1000+) m (100–1600(–3300+) ft) 100–500 m (300–1600 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; DC; FL; GA; IA; IL; IN; KS; KY; LA; MA; MD; MI; MO; MS; NC; 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.)

Source FNA vol. 21, p. 194. FNA vol. 21, p. 191.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Coreopsidinae > Coreopsis > sect. Coreopsis Asteraceae > tribe Heliantheae > subtribe Coreopsidinae > Coreopsis > sect. Gyrophyllum
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. grandiflora, 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. verticillata
Synonyms C. tripteris var. deamii, C. tripteris var. smithii
Name authority Linnaeus: Sp. Pl. 2: 908. (1753) Linnaeus: Sp. Pl. 2: 908. (1753)
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