Coreopsis sect. Tuckermannia

(Nuttall) S. F. Blake

Proc. Amer. Acad. Arts 49: 340. 1913.

Basionym: Undefined sect. Tuckermannia Nuttall Trans. Amer. Philos. Soc., n. s. 7: 363. 1841
Treatment appears in FNA Volume 21. Treatment on page 186.

Perennials, subshrubs, or shrubs (often ± fleshy). Leaves cauline; alternate; blades (1–)2–3-pinnately lobed. Calyculi of 4–12 bractlets. Phyllaries 8–14+. Paleae lanceolate to linear-oblong. Ray florets 11–21+, pistillate, fertile; laminae yellow, ± elliptic to oblong, each broadest at or near middle, apices entire or 2–3-toothed. Disc florets 80–150+; corollas yellow, lobes 5; style-branch apices ± truncate. Cypselae ± oblong, wings chartaceous to membranous, entire, not ciliolate, faces glabrous, smooth; pappi 0, or (1–)2 cusps 0.1–0.2+ mm (shoulders of wings sometimes bristly).

Distribution

Coastal Calif., adjacent islands, nw Mexico (including Guadalupe Island).

Discussion

Species 2 (2 in the flora).

Selected References

None.

Key

1 Subshrubs or shrubs, (10–)30–250+ cm; heads (1–)8–12+ per stem; peduncles 4–12(–18+) cm; ray florets 8–13+ Coreopsis gigantea
1 Perennials, 1–4(–8) dm; heads 1–2(–4+) per stem; peduncles (8–)15–30+ cm; ray florets 16–21+ Coreopsis maritima
John L. Strother +
(Nuttall) S. F. Blake +
Undefined sect. Tuckermannia +
Coastal Calif. +, adjacent islands +  and nw Mexico (including Guadalupe Island). +
Proc. Amer. Acad. Arts +
Undefined (tribe Undefined) subtribe Coreopsideae +  and Undefined (tribe Undefined) subtribe Petrobiinae +
Coreopsis sect. Tuckermannia +
Coreopsis +
section +