Flora of North America species comparison

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Coreopsis californica

Coreopsis stillmanii

California tickseed

Stillman's tickseed
Habit Annuals, 5–20(–30+) cm. Annuals, 5–20+ cm.
Leaf

blades simple or 1(–2)-pinnately lobed, terminal lobes filiform, 0.5–1(–1.5) mm wide.

blades simple or 1(–2)-pinnately lobed, terminal lobes spatulate to narrowly oblanceolate, 1–3 mm wide.
Peduncles

5–15(–30+) cm.

5–12(–20+) cm.
Ray florets

(5–)8(–12+);

laminae 7–10(–15+) mm.

5–8;

laminae 8–12(–15+) mm.
Disc florets

20–60(–100+);

corollas 2–3.6 mm.

12–30+;

corollas 2.5–3.5 mm.
Phyllaries

5–8, obovate to oblanceolate, 4–6(–7+) mm.

(5–)8, ovate to lance-ovate, 4–5(–7) mm.
Calyculi

of (3–)5–8 linear bractlets 3–7+ mm, not ciliolate near bases.

of 5–7+ oblong to linear bractlets 4–8(–10) mm, ciliolate near bases.
Cypselae

± oblong, (2.5–)3–4+ mm, marked adaxially with red dots or dashes, wings corky-thickened, faces ± tuberculate and/or hirtellous.

± obovate, 4–5 mm, not marked adaxially with red, wings corky-thickened, faces smooth or ± tuberculate, not hirtellous.
2n

= 24.

= 24.

Coreopsis californica

Coreopsis stillmanii
Phenology Flowering Feb–Jun. Flowering Mar–May.
Habitat Openings in desert scrub, stabilized dunes Rocky slopes, serpentine ridges
Elevation 300–1000 m (1000–3300 ft) 400–800 m (1300–2600 ft)
Distribution
from FNA
AZ; CA
[WildflowerSearch map]
from FNA
CA
Discussion

Coreopsis californica may occur sporadically in New Mexico.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 21, p. 189. FNA vol. 21, p. 189.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Coreopsidinae > Coreopsis > sect. Leptosyne Asteraceae > tribe Heliantheae > subtribe Coreopsidinae > Coreopsis > sect. Leptosyne
Sibling taxa
C. auriculata, C. basalis, C. bigelovii, 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, C. verticillata
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. tinctoria, C. tripteris, C. verticillata
Synonyms Leptosyne californica, C. californica subsp. newberryi, C. californica var. newberryi Leptosyne stillmanii
Name authority (Nuttall) H. Sharsmith: Madroño 4: 217. (1938) (A. Gray) S. F. Blake: Proc. Amer. Acad. Arts 49: 342. (1913)
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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