Coreopsis rosea
Coreopsis delphiniifolia
pink tick-seed
larkspurleaf tickseed
mostly cauline; opposite;
petioles 0–1 mm, ciliate or not;
blades lance-linear to linear or filiform, 20–45(–60) × 1–2(–3+) mm, rarely with 1–2 lateral lobes.
petioles 0–1 mm;
blades simple or 3-foliolate, simple blades or leaflets usually narrowly lanceolate to lance-linear, 35–80 × 2–5(–7) mm (seldom lobed, sometimes parted into 2–3+ lance-linear to ± linear lobes).
2–4(–6+) cm.
15–45+ mm.
pinkish to white, 9–15+ mm.
15–25(–30) mm.
40–60+;
corollas ochroleucous to yellow, 2.5–3 mm.
25–60+;
corollas yellow (often drying blackish), 5–6 mm.
deltate-ovate, 4.5–5.5 mm.
8, oblong-ovate, 5–6+ mm.
of oblong to linear bractlets 1.5–2+ mm.
of 8–10 linear bractlets 3–5(–7) mm.
narrowly oblong, 1.3–1.8 mm, not winged;
pappi 0.
oblong, 4.5–6 mm.
(± mid stem) 1–4(–5+) cm.
(± mid stem) 3–8 cm.
= 26.
= 52, 78, 104.
Coreopsis rosea
Coreopsis delphiniifolia
Occurrence of Coreopsis rosea in South Carolina may represent a human-mediated disjunction; the collection came from a “lime sink” near a trailer park close to a freeway.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Plants treated here as Coreopsis delphiniifolia are questionably distinct from C. major. In 1976, E. B. Smith suggested that members of the taxon he called C. ×delphiniifolia may be hybrids or progeny of hybrids involving C. verticillata and C. tripteris and, possibly, C. major. A problem with such an interpretation is that although all of the 35 or so records for C. delphiniifolia in the sense of Smith map at or near known localities for C. major, all but 2 are from well south of the known distribution of C. verticillata and only 3 are from near known localities for C. tripteris.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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Flora NW
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WildflowerSearch
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