Flora of North America species comparison

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Coreopsis verticillata

thread-leaf tickseed, threadleaf coreopsis, whorled tickseed
Habit Perennials, 20–60+ cm.
Leaves

petioles 0–1 mm;

blades usually 3-foliolate, simple blades or leaflets entire or each ± pedately divided with 3–9+, ± linear to filiform lobes 5–25(–45+) × 0.5–1(–2) mm.
Peduncles

2–5(–8+) cm.
Ray laminae

12–20+ mm.
Disc florets

30–40+;

corollas yellow (sometimes drying blackish), 3.5–5.5 mm.
Phyllaries

8, lance-ovate, 6–7 mm.
Calyculi

of 8 linear bractlets 3–5(–9) mm.
Cypselae

obovate to oblong, 3.5–4 mm.
Internodes

(± mid stem) 15–40(–60) mm.
2n

= 26, 52, 78.

Coreopsis verticillata
Phenology Flowering Jun–Jul(–Aug).
Habitat Oak wood, sandy soils
Elevation 10–500 m (0–1600 ft)
Distribution
from FNA
AL; AR; CT; DC; FL; GA; KY; MA; MD; MS; NC; NJ; NY; OH; SC; TN; VA; WV; ON; QC
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 21, p. 192.
Parent taxa 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. 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
Name authority Linnaeus: Sp. Pl. 2: 907. (1753)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

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