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tall coreopsis, tall tickseed

Habit Perennials, 90–180+ cm.
Leaves

petioles 5–45 mm;

blades usually 3-foliolate, leaflets usually simple, sometimes ± pinnately lobed, ultimate blades ± lanceolate, 4–9(–12+) cm × (9–)12–35+ mm.

Peduncles

2–5+ cm.

Ray laminae

12–22+ mm.

Disc florets

40–80+;

corollas red-brown to purplish, 5–6 mm.

Phyllaries

8, ± oblong to lance-oblong, 6–8 mm.

Calyculi

of 5–6 oblong bractlets 1.5–5 mm.

Cypselae

obovate to oblong, 4–5(–6) mm.

Internodes

(± mid stem) 3–7(–10+) cm.

2n

= 26.

Coreopsis tripteris

Phenology Flowering Jul–Sep.
Habitat Heavy loams, moist sands, along streams, boggy meadows
Elevation 100–500 m (300–1600 ft)
Distribution
from FNA
AL; AR; CT; DC; FL; GA; IA; IL; IN; KS; KY; LA; MA; MD; MI; MO; MS; NC; OH; OK; PA; RI; SC; TN; TX; VA; VT; WI; WV; ON; QC
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 21, p. 191.
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. verticillata
Synonyms C. tripteris var. deamii, C. tripteris var. smithii
Name authority Linnaeus: Sp. Pl. 2: 908. (1753)
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