Coreopsis lanceolata |
Coreopsis grandiflora |
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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 |
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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 |
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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 |
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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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
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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.) |
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 | ||
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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