Rudbeckia fulgida var. palustris

(Eggert ex C. L. Boynton & Beadle) Perdue

Rhodora 59: 297. 1958.

Common names: Prairie or marsh coneflower
Endemic
Basionyms: Rudbeckia palustris Eggert ex C. L. Boynton & Beadle Biltmore Bot. Stud. 1: 16. 1901
Treatment appears in FNA Volume 21. Treatment on page 54.

Stems glabrous or sparsely hairy (hairs antrorse to spreading). Leaves: basal blades lanceolate to narrowly elliptic to ovate, 2–4 cm wide, lengths to 2 times widths, bases cuneate, margins entire or serrate, faces glabrous or sparsely hairy; cauline petiolate (proximal) or sessile (distal), blades lanceolate to ovate, notably smaller distally, bases attenuate to subauriculate (distal), margins entire or serrate, faces sparsely to moderately hairy. Phyllaries reflexed, 0.8–2.2 × 0.2–0.5 cm, pilose (abaxially) or glabrous (adaxially). Receptacles 11–18 mm diam.; palea margins ciliate, faces glabrous. Ray-florets 8–14; laminae 15–25 mm. 2n = 38.


Phenology: Flowering summer–fall.
Habitat: Mesic to wet sites
Elevation: 50–600 m

Discussion

Selected References

None.

Lower Taxa

None.

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 +
(Eggert ex C. L. Boynton & Beadle) Perdue +
lanceolate +  and narrowly elliptic +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
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 subauriculate +
Rudbeckia palustris +
compound +  and simple +
lanceolate;ovate +
smaller +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
sessile +  and petiolate +
2 cm20 mm <br />0.02 m <br /> (25 cm250 mm <br />0.25 m <br />) +
0.5cm +  and 7cm +
Prairie or marsh 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 +
Ark. +, Mo. +, Okla. +  and Tex. +
50–600 m +
glabrous +  and hairy +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Mesic to wet sites +
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 +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
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 />) +
Flowering summer–fall. +
0.8 cm8 mm <br />0.008 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
glabrous +  and pilose +
3 +  and 21 +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 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 var. palustris +
Rudbeckia fulgida +
variety +
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 +