Coreopsis lanceolata |
Coreopsis gladiata |
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garden coreopsis, lance-leaf coreopsis, lance-leaf tick-seed, lanced-leaf coreopsis, sand coreopsis |
coastal plain tickseed, Florida tickseed, sickle tickseed, Texas tickseed |
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Habit | Perennials, 10–30(–60+) cm. | Perennials, 30–70 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. |
basal and cauline; usually alternate, sometimes opposite and alternate or all opposite; petioles 1–10(–15+) cm, not ciliate; blades elliptic or lanceolate to ± linear, (2–)4–8(–15+) cm × (3–)7–12(–40+) mm, sometimes with 1–2 lateral lobes. |
Peduncles | (8–)12–20(–35+) cm. |
(1–)4–8(–10+) cm. |
Ray laminae | yellow, 15–30+ mm. |
yellow, (12–)15–20+ mm. |
Disc florets/ |
6–7.5 mm, apices yellow. |
40–80+; corollas purplish or purple-tipped, 2.8–4.8 mm. |
Phyllaries | deltate to lance-deltate, 8–12+ mm. |
lance-ovate to lanceolate, 6–9(–12) mm. |
Calyculi | of lance-ovate to lance-linear or linear bractlets 4–8(–12) mm. |
of broadly deltate-ovate to lance-ovate or lance-linear bractlets 2–6+ mm. |
Cypselae | (2.6–)3–4 mm, wings ± spreading, ± chartaceous, entire. |
± obovate to oblong, 3–4 mm, winged, wings 0.2–0.4+ mm wide, ± pectinate; pappi of 2 subulate scales 0.5–1+ mm. |
Aerial | nodes proximal to first peduncle usually 1–3(–5+), distalmost 1–3 internodes 1–2(–8+) cm. |
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Internodes | (± mid stem) (1–)8–12+ cm. |
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2n | = 26 (+ 0–4B). |
= 26. |
Coreopsis lanceolata |
Coreopsis gladiata |
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Phenology | Flowering (Mar–)May–Jul(–Aug). | Flowering ± year round, mostly Sep–Oct. |
Habitat | Sandy soils, ditches and roadsides, other disturbed sites | Peaty bogs, swamps, depressions, in pine barrens |
Elevation | 30–500(–1000+) m (100–1600(–3300+) ft) | 10–100+ m (0–300+ 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; FL; GA; LA; MS; NC; SC; TX; VA
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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.) |
As here circumscribed, Coreopsis gladiata includes plants that others (without agreement among themselves) have treated as distinct species and/or varieties: C. falcata (leaves mostly basal and/or proximal, alternate, blades mostly lance-linear to linear, often 1–2 with 1–2 lateral lobes, faces not dotted; outer phyllaries lance-ovate to lance-linear; Ga., N.C., S.C.); C. floridana (leaves mostly basal and/or proximal, alternate, blades mostly lance-linear to linear, not lobed, not dotted; outer phyllaries broadly deltate-ovate; Fla.), C. helianthoides (leaves mostly cauline, alternate, blades mostly elliptic to lanceolate, not lobed, faces not dotted; outer phyllaries lance-ovate to lance-linear; Ala., Fla., Ga., La., Miss., N.C., S.C.), and C. linifolia (leaves basal and cauline or mostly cauline, alternate or opposite or both, blades mostly lance-linear to linear, seldom lobed, faces bearing dark or translucent dots; outer phyllaries lance-ovate to lance-linear; Ala., Fla., Ga., La., Miss., N.C., S.C., Tex., Va.). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 21, p. 194. | FNA vol. 21, p. 196. |
Parent taxa | Asteraceae > tribe Heliantheae > subtribe Coreopsidinae > Coreopsis > sect. Coreopsis | Asteraceae > tribe Heliantheae > subtribe Coreopsidinae > Coreopsis > sect. Eublepharis |
Sibling taxa | ||
Synonyms | C. falcata, C. floridana, C. gladiata var. linifolia, C. helianthoides, C. linifolia, C. longifolia | |
Name authority | Linnaeus: Sp. Pl. 2: 908. (1753) | Walter: Fl. Carol., 215. (1788) |
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