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

Bigelow's tickseed

Habit Perennials, 10–30(–60+) cm. Annuals, 3–20(–40+) 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.

lobes linear, 5–25 × 0.5–1(–2) mm.

Peduncles

(8–)12–20(–35+) cm.

2–20(–35+) cm.

Ray florets

(3–)8+;

laminae (5–)12–20+ mm.

Ray laminae

yellow, 15–30+ mm.

Disc florets/Disc corollas

6–7.5 mm, apices yellow.

(5–)50–100+;

corollas 2–4.5 mm.

Phyllaries

deltate to lance-deltate, 8–12+ mm.

(3–)8+, ± ovate to obovate, 6–10(–12+) mm.

Calyculi

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

of (1–)5–8 linear bractlets (1–)3–8+ mm.

Cypselae

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

Disc cypselae

oblanceolate to ± oblong, 5–6(–7) mm;

pappi 2–3 mm.

Ray cypselae

± oblong, 5–6 mm.

Aerial

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

Paleae

basally adnate to and falling with disc cypselae.

2n

= 26 (+ 0–4B).

= 24.

Coreopsis lanceolata

Coreopsis bigelovii

Phenology Flowering (Mar–)May–Jul(–Aug). Flowering Feb–Jun.
Habitat Sandy soils, ditches and roadsides, other disturbed sites Openings in chaparral, desert scrub, yellow-pine forests
Elevation 30–500(–1000+) m (100–1600(–3300+) ft) 100–1800 m (300–5900 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
CA
[WildflowerSearch 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. 188.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Coreopsidinae > Coreopsis > sect. Coreopsis Asteraceae > tribe Heliantheae > subtribe Coreopsidinae > Coreopsis > sect. Pugiopappus
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. 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. tripteris, C. verticillata
Synonyms Pugiopappus bigelovii
Name authority Linnaeus: Sp. Pl. 2: 908. (1753) (A. Gray) Voss: Vilm. Blumengärtn. ed. 3, 1: 488. (1894)
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