Coreopsis californica
Coreopsis delphiniifolia
California tickseed
larkspurleaf tickseed
blades simple or 1(–2)-pinnately lobed, terminal lobes filiform, 0.5–1(–1.5) mm wide.
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).
5–15(–30+) cm.
15–45+ mm.
(5–)8(–12+);
laminae 7–10(–15+) mm.
15–25(–30) mm.
20–60(–100+);
corollas 2–3.6 mm.
25–60+;
corollas yellow (often drying blackish), 5–6 mm.
5–8, obovate to oblanceolate, 4–6(–7+) mm.
8, oblong-ovate, 5–6+ mm.
of (3–)5–8 linear bractlets 3–7+ mm, not ciliolate near bases.
of 8–10 linear bractlets 3–5(–7) mm.
± oblong, (2.5–)3–4+ mm, marked adaxially with red dots or dashes, wings corky-thickened, faces ± tuberculate and/or hirtellous.
oblong, 4.5–6 mm.
(± mid stem) 3–8 cm.
= 24.
= 52, 78, 104.
Coreopsis californica
Coreopsis delphiniifolia
Coreopsis californica may occur sporadically in New Mexico.
(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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