Coreopsis nuecensis

A. Heller

Contr. Herb. Franklin Marshall Coll. 1: 106. 1895.

Endemic
Basionym: Coreopsis coronata Hooker Bot. Mag. 63: plate 3460. 1836,
Synonyms: Coreopsis nuecensoides E. B. Smith
Treatment appears in FNA Volume 21. Treatment on page 193. Mentioned on page 192.

Annuals, 10–30 (–50+) cm. Aerial nodes proximal to first peduncle usually 1–3 (–5), distalmost 1–3 internodes 2–4 (–9+) cm. Leaves: basal and cauline on proximal 1/5–1/3 (–1/2) of plant heights; petioles 1–8+ cm; blades simple or 1 (–2) -pinnately lobed, simple blades or terminal lobes ± elliptic to lanceolate, 10–30 × 5–15 mm. Peduncles (5–) 10–25+ cm. Calyculi of ± deltate to lance-oblong bractlets 4–6 (–8) mm. Phyllaries lance-oblong, 6–8 (–10+) mm. Ray laminae yellow, usually each with (2–) 4–8+ proximal, redbrown or purple flecks, 12–18+ mm. Disc corollas 2.5–3.2 mm, apices yellow. Cypselae 2.5–4 mm, wings spreading, ± chartaceous, entire. 2n = 12, 14, 18, 20.


Phenology: Flowering Mar–May.
Habitat: Sandy soils in post-oak and oak-mesquite woodlands
Elevation: 10–200+ m

Discussion

Coreopsis nuecensis is probably in Mexico (Tamaulipas) and was collected once in Florida (“Escaped from cultivation”). Plants with glabrous phyllaries and chromosome numbers of 2n = 18 and 20 and included here in C. nuecensis have been called C. nuecensoides.

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Coreopsis nuecensis"
20 +, 18 +, 14 +  and 12 +
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 +
A. Heller +
smooth +  and ciliate or barbed +
1 +  and 2 +
purple +  and redbrown +
decurrent +
Coreopsis coronata +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
less elliptic;lanceolate +
5mm;15mm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
less deltate;lance-oblong +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
barbellulate +  and barbellate +
winged +  and thin-margined +
obovate +  and oblong +
fertile +  and bisexual +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
fertile +  and bisexual +
Fla. +  and Tex. +
10–200+ m +
papillate +  and smooth +
linear-fusiform;4-angled;ovate;orbiculate;oblong;linear;cuneate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Sandy soils in post-oak and oak-mesquite woodlands +
discoid +  and radiate +
in open , more or less corymbiform arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
4 cm40 mm <br />0.04 m <br /> (9 cm90 mm <br />0.09 m <br />) +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
less globose;cylindric +
broadest +
sessile +  and petiolate +
cauline +  and basal +
less deltate +  and lanceovate +
dentate to pinnatifid or palmatifid +  and entire +
distalmost +  and proximal +
1 +  and 3 +
2-carpellate +
attenuate;less lanceolate;linear +
persistent +
of 1-2 , smooth to ciliate or barbed awns or scales +  and coroniform +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
10 cm100 mm <br />0.1 m <br /> (25 cm250 mm <br />0.25 m <br />) +
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Flowering Mar–May. +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Contr. Herb. Franklin Marshall Coll. +
fertile +  and sterile +
purple flecks +, redbrown +  and yellow +
1.2 cm12 mm <br />0.012 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
subulate +  and lanceolate +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Coreopsis nuecensoides +
Coreopsis nuecensis +
Coreopsis sect. Coreopsis +
species +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
toothed +  and entire +
30 cm300 mm <br />0.3 m <br /> (50 cm500 mm <br />0.5 m <br />) +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
shrub +  and subshrub +
not ciliolate +
rarely irregularly toothed +  and pectinate +
membranous +