Coreopsis calliopsidea
Coreopsis delphiniifolia
leafstem tickseed
larkspurleaf tickseed
lobes linear, 3–30 × 0.5–3 mm.
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).
5–25+ cm.
15–45+ mm.
(5–)8+;
laminae 12–20(–30) mm.
15–25(–30) mm.
(12–)40–100+;
corollas 4–6.6 mm.
25–60+;
corollas yellow (often drying blackish), 5–6 mm.
(5–)8, lance-ovate to lanceolate, 6–10+ mm.
8, oblong-ovate, 5–6+ mm.
of 3–5 ovate-deltate bractlets (3–)4–6 mm.
of 8–10 linear bractlets 3–5(–7) mm.
oblong, 4.5–6 mm.
oblanceolate to linear, 5–6 mm;
pappi 3–4(–5) mm.
± oblong, 4–6 mm.
seldom basally adnate to and falling with disc cypselae.
(± mid stem) 3–8 cm.
= 24.
= 52, 78, 104.
Coreopsis calliopsidea
Coreopsis delphiniifolia
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.)
CA
WildflowerSearch
iNaturalist
USDA Plants Database
