Rudbeckia laciniata var. humilis

A. Gray in A. Gray et al.

in A. Gray et al., Syn. Fl. N. Amer. 1(2): 262. 1884.

Common names: Southeastern cutleaf coneflower
Endemic
Synonyms: Rudbeckia digitata Miller Rudbeckia laciniata var. digitata (Miller) Fiori
Treatment appears in FNA Volume 21. Treatment on page 50.

Leaves: basal 12–45 × 10–25 cm, blades 0, 3, or 5-lobed; proximal and mid cauline blades similar (distal usually 3-lobed or not lobed); adaxial faces sparsely to moderately hairy. Receptacles hemispheric to globose; paleae 4–5.5 mm. Ray laminae 20–45 × 5–11 mm. Discs 10–20 × 10–17 mm. Cypselae 3.5–5.2 mm; pappi to 0.7 mm. 2n = 38.


Phenology: Flowering late summer–fall.
Habitat: Wet sites along streams and edges of woods
Elevation: 70–1500 m

Distribution

V21-98-distribution-map.gif

Ala., Ga., Md., N.C., S.C., Tenn., Va.

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 +
A. Gray in A. Gray et al. +
12 cm120 mm <br />0.12 m <br /> (45 cm450 mm <br />0.45 m <br />) +
10 cm100 mm <br />0.1 m <br /> (25 cm250 mm <br />0.25 m <br />) +
cuneate +  and attenuate or cordate +
compound +  and simple +
5-lobed +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
sessile +  and petiolate +
sessile +  and petiolate +
8 cm80 mm <br />0.08 m <br /> (40 cm400 mm <br />0.4 m <br />) +
lobed +, mostly lobed +  and pinnatifid +
3cm +  and 20cm +
Southeastern cutleaf coneflower +
yellow +  and yellowish green +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
hairy +  and glabrous +
flattened +, fusiform-terete +  and obpyramidal +
fertile +  and bisexual +
6 cm60 mm <br />0.06 m <br /> (8 cm80 mm <br />0.08 m <br />) +
fertile +  and bisexual +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
10mm;17mm +
Ala. +, Ga. +, Md. +, N.C. +, S.C. +, Tenn. +  and Va. +
70–1500 m +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Wet sites along streams and edges of woods +
discoid +  and radiate +
in loose , corymbiform to paniculiform arrays +  and singly +
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;50mm +
elliptic +  and oblanceolate +
4mm;14mm +
sessile +  and petiolate +
deltate +  and lance-linear +
dentate +  and entire +
2-carpellate +
0.4 cm4 mm <br />0.004 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
persistent +
0 +  and 2 +
of 4 scales +  and coroniform +
0 cm0 mm <br />0 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
Flowering late summer–fall. +
3 +  and 21 +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
in A. Gray et al., Syn. Fl. N. Amer. +
2 cm20 mm <br />0.02 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
bearing subulate enations +, hairy +  and bristly +
pitted +  and smooth +
hemispheric;globose +
connate +  and distinct +
unequal +
exalbuminous +
purplish +, bluish green +  and green +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Rudbeckia digitata +  and Rudbeckia laciniata var. digitata +
Rudbeckia laciniata var. humilis +
Rudbeckia laciniata +
variety +
cylindric +
serrate +, dentate +  and entire +
50 cm500 mm <br />0.5 m <br /> (300 cm3,000 mm <br />3 m <br />) +
shrub +  and subshrub +