Cimicifuga rubifolia

Kearney

Bull. Torrey Bot. Club 24: 561. 1897.

Common names: Appalachian bugbane
EndemicIllustrated
Treatment appears in FNA Volume 3.

Stems 30-140 cm, glabrous. Leaves: petiole angled, 20-50 cm, proximally deeply grooved adaxially, densely pubescent in groove, otherwise glabrous or sparsely pubescent. Leaf-blade 1-2-ternately compound; leaflets 3-9 (-17); terminal leaflet of central segments broadly obovate, deeply 3-5-lobed, 9-30 × 9-25 cm, with 5-9 prominent veins arising basally, base deeply cordate, margins coarsely and irregularly dentate, apex sharply acuminate, surfaces abaxially with long, appressed, delicate hairs, adaxially glabrous; other leaflets 8-24 × 6-22 cm. Inflorescences erect panicles of 2-6 racemelike branches, terminal raceme 15-30 cm, puberulent to short-pubescent; bracts 3, subtending pedicel, central bract larger, lanceolate, 2 mm, lateral bracts ovate-deltate; pedicel to 5 mm, short-pubescent, bracteoles absent. Flowers: sepals 5, white; petals absent; stamens 35-65; filaments 3-5 mm; pistils 1 (-2), sessile, sparsely glandular; style short, straight or slightly recurved; stigma minute, 0.2-0.3 mm wide. Follicles 1 (-2), sessile, oblong, strongly compressed laterally, 8-20 mm, thin walled. Seeds reddish-brown, lenticular, covering of scales giving cylindric appearance, ca. 3 mm, covered with reddish-brown, membranous scales. 2n = 16.


Phenology: Flowering summer–fall (Aug–Oct).
Habitat: North-facing, limestone talus slopes and river bluffs, ravines, and coves, and along rivers and creeks
Elevation: 300-900 m

Distribution

V3 260-distribution-map.gif

Ala., Ill., Ind., Ky., Tenn., Va.

Discussion

In addition to being found in the Ridge and Valley Province of Tennessee and Virginia, Cimicifuga rubifolia has disjunct populations in Alabama, the lower Ohio River Valley, and in the middle Tennessee counties of Davidson, Montgomery, and Stewart.

The name Cimicifuga racemosa var. cordifolia has been misapplied to C. rubifolia. See discussion of C. cordifolia under C. americana.

Selected References

None.

Lower Taxa

None.

"thin" is not a number.

... more about "Cimicifuga rubifolia"
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Gwynn W. Ramsey +
Kearney +
cordate +
straight +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
racemelike +
globose;cylindric +
2 cm20 mm <br />0.02 m <br /> (?) +
Appalachian bugbane +
Ala. +, Ill. +, Ind. +, Ky. +, Tenn. +  and Va. +
300-900 m +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
sessile +  and pedicellate +
showy +  and inconspicuous +
walled +  and sessile +
0.8 cm8 mm <br />0.008 m <br /> (2 cm20 mm <br />0.02 m <br />) +
stipitate +, sessile +  and aggregate +
ovoid +  and obovoid +
North-facing, limestone talus slopes and river bluffs, ravines, and coves, and along rivers and creeks +
axillary +  and terminal +
ovate-deltate +
petiolate +  and compound +
whorled +, opposite +  and alternate +
cauline +  and basal +
8 cm80 mm <br />0.08 m <br /> (24 cm240 mm <br />0.24 m <br />) +
2-5-lobed +, ovatelanceolate +  and broadly obovate or orbiculate +
6 cm60 mm <br />0.06 m <br /> (22 cm220 mm <br />0.22 m <br />) +
incised +  and toothed +
palmate +  and pinnate +
incised;toothed;incised;toothed;entire +
many-flowered +
7 cm70 mm <br />0.07 m <br /> (60 cm600 mm <br />0.6 m <br />) +
short-pubescent +
0 cm0 mm <br />0 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
distinct +
conspicuous +
reduced +
pubescent;glabrous;pubescent +
20 cm200 mm <br />0.2 m <br /> (50 cm500 mm <br />0.5 m <br />) +
Flowering summer–fall (Aug–Oct). +
Bull. Torrey Bot. Club +
reddish-brown +
membranous +
not arillate +  and stalked +
verrucose +
lenticular +
9 cm90 mm <br />0.09 m <br /> (30 cm300 mm <br />0.3 m <br />) +
3-5-lobed +  and obovate +
9 cm90 mm <br />0.09 m <br /> (25 cm250 mm <br />0.25 m <br />) +
not persistent +
distinct +
more or less concave ovate +  and obovate +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Endemic +  and Illustrated +
30 cm300 mm <br />0.3 m <br /> (140 cm1,400 mm <br />1.4 m <br />) +
0.2mm +  and 0.3mm +
straight +
persistent +
Cimicifuga rubifolia +
Cimicifuga +
species +
15 cm150 mm <br />0.15 m <br /> (30 cm300 mm <br />0.3 m <br />) +
5 +  and 9 +
herbaceous +  and woody +