Rudbeckia missouriensis

Engelmann ex C. L. Boynton & Beadle

Biltmore Bot. Stud. 1: 17. 1901.

Common names: Missouri or Missouri orange coneflower
IllustratedEndemic
Synonyms: Rudbeckia fulgida var. missouriensis (Engelmann ex C. L. Boynton & Beadle) Cronquist
Treatment appears in FNA Volume 21. Treatment on page 58. Mentioned on page 53.
Revision as of 21:50, 29 July 2020 by imported>Volume Importer
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Perennials, to 80 cm (not rhizomatous, not stoloniferous, rosettes at bases of aerial stems). Stems (branches ascending) moderately hirsute (hairs spreading, 1+ mm). Leaves: blades linear to spatulate (not lobed), bases attenuate to cuneate, margins entire or remotely serrulate, apices acute to rounded, faces hirsute; basal petiolate, 5–20 × 0.5–2 cm; cauline petiolate (proximal) or sessile (distal), 2–15 × 0.4–1.5 cm. Heads borne singly or (2–12) in loose, corymbiform arrays. Phyllaries to 1.5 cm (faces hairy, more densely abaxially). Receptacles mostly hemispheric; paleae 5–6.5 mm, apices rounded to acute, abaxial tips glabrous. Ray-florets 9–15; laminae elliptic to oblanceolate, 10–25 × 5–8 mm, abaxially sparsely strigose. Discs 8–15 × 10–17 mm. Disc-florets 150–250+; corollas proximally greenish yellow, distally purple-brown, 4–5.5 mm; style-branches ca. 1.5 mm, apices obtuse. Cypselae 1.5–2.7 mm; pappi coroniform, ca. 0.1 mm. 2n = 38.


Phenology: Flowering late spring–fall.
Habitat: Dry, rocky prairies, limestone glades
Elevation: 10–80 m

Distribution

V21-127-distribution-map.gif

Ark., Ill., Ky., La., Mo., Okla., Tex.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Rudbeckia missouriensis"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
obtuse;rounded;acute +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
Lowell E. Urbatsch +  and Patricia B. Cox +
Engelmann ex C. L. Boynton & Beadle +
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
attenuate +  and cuneate +
compound +  and simple +
linear;spatulate +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
0.1 cm1 mm <br />0.001 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
barbellulate +  and barbellate +
sessile +  and petiolate +
2 cm20 mm <br />0.02 m <br /> (15 cm150 mm <br />0.15 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (?) +  and 1.5 cm15 mm <br />0.015 m <br /> (?) +
Missouri or Missouri orange coneflower +
purple-brown +  and greenish yellow +
0.4 cm4 mm <br />0.004 m <br /> (0.55 cm5.5 mm <br />0.0055 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 +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
10mm;17mm +
Ark. +, Ill. +, Ky. +, La. +, Mo. +, Okla. +  and Tex. +
10–80 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Dry, rocky prairies, limestone glades +
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 +
10mm;25mm +
elliptic +  and oblanceolate +
sessile +  and petiolate +
not glaucous +
greenish;yellowish +
deltate +  and lance-linear +
serrulate +  and entire +
2-carpellate +
0.5 cm5 mm <br />0.005 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
persistent +
0 +  and 2 +
coroniform +
0.1 cm1 mm <br />0.001 m <br /> (?) +
Flowering late spring–fall. +
3 +  and 21 +
0 cm0 mm <br />0 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Biltmore Bot. Stud. +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
hemispheric +
connate +  and distinct +
2 +  and 5 +
exalbuminous +
Illustrated +  and Endemic +
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 />) +
Rudbeckia fulgida var. missouriensis +
Rudbeckia missouriensis +
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 /> (80 cm800 mm <br />0.8 m <br />) +
80 cm800 mm <br />0.8 m <br /> (200 cm2,000 mm <br />2 m <br />) +
shrub +  and subshrub +