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pink tick-seed

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

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

mostly cauline; opposite;

petioles 0–1 mm, ciliate or not;

blades lance-linear to linear or filiform, 20–45(–60) × 1–2(–3+) mm, rarely with 1–2 lateral lobes.

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

2–4(–6+) cm.

(8–)12–20(–35+) cm.

Ray laminae

pinkish to white, 9–15+ mm.

yellow, 15–30+ mm.

Disc florets/Disc corollas

40–60+;

corollas ochroleucous to yellow, 2.5–3 mm.

6–7.5 mm, apices yellow.

Phyllaries

deltate-ovate, 4.5–5.5 mm.

deltate to lance-deltate, 8–12+ mm.

Calyculi

of oblong to linear bractlets 1.5–2+ mm.

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

Cypselae

narrowly oblong, 1.3–1.8 mm, not winged;

pappi 0.

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

Internodes

(± mid stem) 1–4(–5+) cm.

Aerial

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

2n

= 26.

= 26 (+ 0–4B).

Coreopsis rosea

Coreopsis lanceolata

Phenology Flowering Aug–Sep. Flowering (Mar–)May–Jul(–Aug).
Habitat Sandy shores, marsh edges, etc. Sandy soils, ditches and roadsides, other disturbed sites
Elevation 0–50 m (0–200 ft) 30–500(–1000+) m (100–1600(–3300+) ft)
Distribution
from FNA
DE; MA; NJ; PA; RI; SC; NS
[WildflowerSearch map]
[BONAP county map]
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]
Discussion

Occurrence of Coreopsis rosea in South Carolina may represent a human-mediated disjunction; the collection came from a “lime sink” near a trailer park close to a freeway.

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

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. 196. FNA vol. 21, p. 194.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Coreopsidinae > Coreopsis > sect. Eublepharis 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. lanceolata, C. latifolia, C. leavenworthii, C. major, C. maritima, C. nudata, C. nuecensis, C. palmata, C. pubescens, C. pulchra, 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. 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 Nuttall: Gen. N. Amer. Pl. 2: 179. (1818) Linnaeus: Sp. Pl. 2: 908. (1753)
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