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 redbrown 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.

"broader" is not a number.

... more about "Coreopsis leavenworthii"
not tailed +, rounded +  and obtuse +
dark +  and pale +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
paniculiform +, cymiform +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
Torrey & A. Gray +
smooth +  and ciliate or barbed +
1 +  and 2 +
decurrent +
Undefined sect. Calliopsis +
3.5 cm35 mm <br />0.035 m <br /> (7 cm70 mm <br />0.07 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
narrowly oblanceolate;linear +
1mm;3mm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
deltate-ovate;oblong or linear +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
barbellulate +  and barbellate +
1(-3)-pinnate +  and simple +
redbrown +  and purple +
winged +  and thin-margined +
less oblong +  and spatulate +
fertile +  and bisexual +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
fertile +  and bisexual +
0–20+ m +
tuberculate +  and smooth +
linear-fusiform;4-angled;ovate;orbiculate;oblong;linear;cuneate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Moist, sandy soils, flatwoods, ditches +
discoid +  and radiate +
in open , more or less corymbiform arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
less globose;cylindric +
more or less proximally redbrown +  and purple +
obovate +  and cuneate +
broadest +
sessile +  and petiolate +
alternate +  and opposite +
cauline +  and basal +
less deltate +  and lanceovate +
not +  and winged +
dentate to pinnatifid or palmatifid +  and entire +
2-carpellate +
ovate;linear or subulate +
persistent +
of 1-2 , smooth to ciliate or barbed awns or scales +  and coroniform +
5 cm50 mm <br />0.05 m <br /> (8 cm80 mm <br />0.08 m <br />) +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Flowering year round, mostly May–Jul. +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Fl. N. Amer. +
fertile +  and sterile +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
0.1 cm1 mm <br />0.001 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
subulate +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Coreopsideae +  and Undefined (tribe Undefined) subtribe Petrobiinae +
Coreopsis leavenworthii +
Coreopsis sect. Calliopsis +
species +
3.5 cm35 mm <br />0.035 m <br /> (7 cm70 mm <br />0.07 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
toothed +  and entire +
70 cm700 mm <br />0.7 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
30 cm300 mm <br />0.3 m <br /> (70 cm700 mm <br />0.7 m <br />) +
shrub +  and subshrub +
not ciliolate +
corky +  and chartaceous +
lobed +  and toothed +
membranous +
0.2mm +  and 0.8mm +