Clematis columbiana var. tenuiloba

(A. Gray) J. S. Pringle

Brittonia 25: 382. 1971.

EndemicIllustrated
Basionym: Clematis alpina var. occidentalis (Hornemann) A. Gray subvar. tenuiloba A. Gray in H.Newton and W.P. Jenney, Rep. Geol. Resources Black Hills, 531. 1880
Synonyms: Clematis tenuiloba (A. Gray) C.L. Hitchcock
Treatment appears in FNA Volume 3.

Stems mainly subterranean, rhizomatous, aerial stems not viny, mostly less than 0.1 m (to 1.5 m in forms transitional to var. columbiana), tufted. Leaf-blade mostly 3-ternate, ± succulent; leaflets or lobes mostly 1.5-5 mm wide. Flowers: sepals violet-blue, 1.5-5 cm. 2n = 16.


Phenology: Flowering late spring–early summer.
Habitat: Cliffs, rocky summits, usually in open sites or open pine forest
Elevation: 1000-3000 m

Distribution

V3 1047-distribution-map.gif

Colo., Mont., N.Dak., S.Dak., Utah, Wyo.

Discussion

Selected References

None.

Lower Taxa

None.

"thin" is not a number.

flattened +
flattened +
reduced +
James S. Pringle +
(A. Gray) J. S. Pringle +
cuneate +, truncate +  and cordate +
Clematis alpina var. occidentalis +
curved +  and straight +
plumose +
1.2 cm12 mm <br />0.012 m <br /> (11 cm110 mm <br />0.11 m <br />) +
scale-like;leaflike +
globose;cylindric +
1-many-flowered +
0 cm0 mm <br />0 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Colo. +, Mont. +, N.Dak. +, S.Dak. +, Utah +  and Wyo. +
1000-3000 m +
flattened +
1-many-flowered +
showy +  and inconspicuous +
0 cm0 mm <br />0 m <br /> (15 cm150 mm <br />0.15 m <br />) +
sessile +  and aggregate +
flattened-ellipsoid;terete;flattened-ellipsoid;terete;lenticular +
Cliffs, rocky summits, usually in open sites or open pine forest +
terminal +  and axillary +
petiolate +, sessile +, compound +  and simple +
cordate +  and orbiculate oblong lanceolate or oblanceolate lobed or unlobed +
lobed +  and diverse +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
1.5mm;5mm +
palmate +  and pinnate +
toothed;entire +
1-many-flowered +
0 cm0 mm <br />0 m <br /> (15 cm150 mm <br />0.15 m <br />) +
widely bell-shaped;rotate +
distinct +
conspicuous +
reduced +
Flowering late spring–early summer. +
5 +  and 150 +
not arillate +  and stalked +
not connivent +
violet-blue +
not persistent +
distinct +
spreading +  and ascending +
3 +  and 6 +
lanceovate +  and ovate +
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Endemic +  and Illustrated +
rhizomatous +
aerial +  and subterranean +
0 cm0 mm <br />0 m <br /> (10 cm100 mm <br />0.1 m <br />) +
persistent +
Clematis tenuiloba +
Clematis columbiana var. tenuiloba +
Clematis columbiana +
variety +
annual +  and perennial +