Coreopsis delphiniifolia

Lamarck in J. Lamarck et al.

in J. Lamarck et al., Encycl. 2: 108. 1786.

Endemic
Treatment appears in FNA Volume 21. Treatment on page 191. Mentioned on page 192.

Perennials, 30–90 cm. Internodes (± mid-stem) 3–8 cm. Leaves: petioles 0–1 mm; blades simple or 3-foliolate, simple blades or leaflets usually narrowly lanceolate to lance-linear, 35–80 × 2–5 (–7) mm (seldom lobed, sometimes parted into 2–3+ lance-linear to ± linear lobes). Peduncles 15–45+ mm. Calyculi of 8–10 linear bractlets 3–5 (–7) mm. Phyllaries 8, oblong-ovate, 5–6+ mm. Ray laminae 15–25 (–30) mm. Disc-florets 25–60+; corollas yellow (often drying blackish), 5–6 mm. Cypselae oblong, 4.5–6 mm. 2n = 52, 78, 104.


Phenology: Flowering May–Jul(–Sep).
Habitat: Open woods, barrens, swamps
Elevation: ca. 300 m

Discussion

Plants treated here as Coreopsis delphiniifolia are questionably distinct from C. major. In 1976, E. B. Smith suggested that members of the taxon he called C. ×delphiniifolia may be hybrids or progeny of hybrids involving C. verticillata and C. tripteris and, possibly, C. major. A problem with such an interpretation is that although all of the 35 or so records for C. delphiniifolia in the sense of Smith map at or near known localities for C. major, all but 2 are from well south of the known distribution of C. verticillata and only 3 are from near known localities for C. tripteris.

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Coreopsis delphiniifolia"
104 +, 78 +  and 52 +
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 +
Lamarck in J. Lamarck et al. +
smooth +  and ciliate or barbed +
1 +  and 2 +
decurrent +
simple +  and 3-foliolate +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
3.5 cm35 mm <br />0.035 m <br /> (8 cm80 mm <br />0.08 m <br />) +
usually narrowly lanceolate;lance-linear +
2mm;5mm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
barbellulate +  and barbellate +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
winged +  and thin-margined +
fertile +  and bisexual +
fertile +  and bisexual +
Ga. +  and S.C. +
ca. 300 m +
more or less papillate +  and tuberculate +
linear-fusiform;4-angled;ovate;orbiculate;oblong;linear;cuneate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Open woods, barrens, swamps +
discoid +  and radiate +
in open , more or less corymbiform arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
less globose;cylindric +
less oblongelliptic +  and suborbiculate +
broadest +
sessile +  and petiolate +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
3.5 cm35 mm <br />0.035 m <br /> (8 cm80 mm <br />0.08 m <br />) +
usually narrowly lanceolate +  and lance-linear +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
not 3-foliolate +
less deltate +  and lanceovate +
dentate to pinnatifid or palmatifid +  and entire +
2-carpellate +
dilated;usually linear;subulate +
persistent +
of 1-2 , smooth to ciliate or barbed awns or scales +  and coroniform +
1.5 cm15 mm <br />0.015 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Flowering May–Jul(–Sep). +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
in J. Lamarck et al., Encycl. +
fertile +  and sterile +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Coreopsideae +  and Undefined (tribe Undefined) subtribe Petrobiinae +
Coreopsis delphiniifolia +
Coreopsis sect. Gyrophyllum +
species +
toothed +  and entire +
30 cm300 mm <br />0.3 m <br /> (90 cm900 mm <br />0.9 m <br />) +
shrub +  and subshrub +
not ciliolate +
corky +  and chartaceous +
lobed +  and toothed +
membranous +