Perennials, to 120 cm (stoloniferous, rosettes forming at stolon apices). Stems glabrous or moderately hirsute (branches spreading). Leaves: blades lanceolate to broadly ovate or elliptic (not lobed), herbaceous, bases attenuate to cordate, margins usually entire or serrate, sometimes lacerate, apices acute, faces glabrous or hirsute to strigose; basal petiolate, 5–30 × 1–8 cm; cauline petiolate, 2–25 × 0.5–7 cm, bases attenuate to cordate or auriculate. Heads borne singly or (2–7) in corymbiform arrays. Phyllaries to 2 cm. Receptacles hemispheric to ovoid; paleae 2.5–4 mm, (apical margins usually ciliate) apices obtuse to acute, abaxial tips usually glabrous. Ray-florets 10–15; laminae elliptic to oblanceolate, 15–25 × 3–6 mm, abaxially strigose. Discs 12–16 × 10–18 mm. Disc-florets 50–500+; corollas proximally yellowish green, brown-purple distally, 3–4.2 mm; style-branches ca. 1.3 mm, apices rounded. Cypselae 2.2–4 mm; pappi coroniform, to 0.2 mm.

Distribution

V21-109-distribution-map.gif

Ont., Que., Ala., Ark., Conn., Del., Fla., Ga., Ill., Ind., Ky., Mass., Md., Mich., Miss., Mo., N.C., N.J., N.Y., Ohio, Okla., Pa., S.C., Tenn., Tex., Va., W.Va., Wis.

Discussion

Varieties 7 (7 in the flora).

Selected References

None.

Key

1 Basal leaf blade lengths ± 3 times widths Rudbeckia fulgida var. fulgida
1 Basal leaf blade lengths to 2 times widths > 2
2 Cauline leaves not notably smaller distally > 3
2 Cauline leaves notably smaller distally (except var. umbrosa) > 4
3 Stems densely villous-hirsute; basal leaf margins mostly coarsely crenate; cauline leaf margins sharply serrate (teeth remote); Illinois, Indiana, Ohio Rudbeckia fulgida var. deamii
3 Stems glabrous or sparsely villous-hirsute; basal leaf margins entire or crenate; cauline leaf margins coarsely serrate to lacerate; ne United States Rudbeckia fulgida var. speciosa
4 Ray laminae 25–40 mm; palea margins eciliate (Indiana, Michigan, Ohio) Rudbeckia fulgida var. sullivantii
4 Ray laminae 10–30 mm; palea margins ciliate > 5
5 Leaf bases (basal and proximal cauline) broadly rounded to cordate (Alabama, Arkansas, Georgia, Indiana, Kentucky, Mississippi, Missouri, North Carolina, Ohio, South Carolina, Tennessee, Virginia) Rudbeckia fulgida var. umbrosa
5 Leaf bases (basal and proximal cauline) usually acute, attenuate, cuneate, or rounded > 6
6 Cauline leaf blades lanceolate to ovate; ray laminae 15–25+ mm; Arkansas, Missouri, Oklahoma, Texas Rudbeckia fulgida var. palustris
6 Cauline leaf blades oblanceolate to broadly spatulate or pandurate; ray laminae 10–15 mm; Alabama, Florida, Georgia, North Carolina, South Carolina, Tennessee, Virginia, West Virginia Rudbeckia fulgida var. spathulata
... more about "Rudbeckia fulgida"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
Lowell E. Urbatsch +  and Patricia B. Cox +
5 cm50 mm <br />0.05 m <br /> (30 cm300 mm <br />0.3 m <br />) +
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
attenuate +  and cordate or auriculate +
compound +  and simple +
lanceolate;broadly ovate or elliptic +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
2 cm20 mm <br />0.02 m <br /> (25 cm250 mm <br />0.25 m <br />) +
0.5cm +  and 7cm +
Orange coneflower +
yellowish green +
0.3 cm3 mm <br />0.003 m <br /> (0.42 cm4.2 mm <br />0.0042 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
hairy +  and glabrous +
flattened +, fusiform-terete +  and obpyramidal +
fertile +  and bisexual +
fertile +  and bisexual +
1.2 cm12 mm <br />0.012 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
10mm;18mm +
Ont. +, Que. +, Ala. +, Ark. +, Conn. +, Del. +, Fla. +, Ga. +, Ill. +, Ind. +, Ky. +, Mass. +, Md. +, Mich. +, Miss. +, Mo. +, N.C. +, N.J. +, N.Y. +, Ohio +, Okla. +, Pa. +, S.C. +, Tenn. +, Tex. +, Va. +, W.Va. +  and Wis. +
hirsute +  and strigose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
discoid +  and radiate +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.1 cm1 mm <br />0.001 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
fusiform;turbinate or broadly campanulate +
15mm;25mm +
elliptic +  and oblanceolate +
sessile +  and petiolate +
not glaucous +
greenish;yellowish +
deltate +  and lance-linear +
serrate +  and entire +
lacerate +
2-carpellate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
persistent +
0 +  and 2 +
coroniform +
0 cm0 mm <br />0 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
3 +  and 21 +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
hemispheric;ovoid +
connate +  and distinct +
2 +  and 5 +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Compositae +
Rudbeckia fulgida +
Rudbeckia sect. Rudbeckia +
species +
cylindric +
entire +  and toothed +
100 cm1,000 mm <br />1 m <br /> (200 cm2,000 mm <br />2 m <br />) +
0 cm0 mm <br />0 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
shrub +  and subshrub +