Coreopsis leavenworthii

Torrey & A. Gray

Fl. N. Amer. 2: 346. 1842.

Endemic
Treatment appears in FNA Volume 21. Treatment on page 197.

Annuals, (10–)30–70(–150+) cm. Leaves: proximal blades usually 1(–2)-pinnate, terminal lobes ± elliptic or oblanceolate to lanceolate or linear, 15–30+ × 4–8(–12+) mm; cauline blades simple or 1(–3)-pinnate, simple blades or terminal lobes narrowly oblanceolate to linear, 8–35(–70+) × 1–3(–5) mm. Peduncles 2–5(–8) cm. Calyculi of deltate-ovate to oblong or linear bractlets 2–6+ mm. Phyllaries ± lance-oblong to lanceolate, (4–)5–9 mm. Ray laminae usually yellow throughout, rarely with proximal red-brown blotch, 8–15+ mm. Disc corollas 2.2–3.5 mm. Cypselae 2–3 mm, wings 0.2–0.8+ mm wide; pappi of 2 subulate scales (0.2–)0.4–1(–1.4+) mm. 2n = 24 (+ 0–2 Bs).


Phenology: Flowering year round, mostly May–Jul.
Habitat: Moist, sandy soils, flatwoods, ditches
Elevation: 0–20+ m

Discussion

Plants here (and generally) treated as Coreopsis leavenworthii probably should be included within the circumscription adopted here for C. tinctoria.

Selected References

None.

Lower Taxa

None.
... more about "Coreopsis leavenworthii"
John L. Strother +
Torrey & A. Gray +
Undefined sect. Calliopsis +
0–20+ m +
Moist, sandy soils, flatwoods, ditches +
Flowering year round, mostly May–Jul. +
Fl. N. Amer. +
Undefined (tribe Undefined) subtribe Coreopsideae +  and Undefined (tribe Undefined) subtribe Petrobiinae +
Coreopsis leavenworthii +
Coreopsis sect. Calliopsis +
species +