Clematis occidentalis var. grosseserrata
Brittonia 23: 370. 1971.
Endemic
Basionym: Atragene grosseserrata Rydberg Bull. Torrey Bot. Club 29: 156. 1902
Synonyms: Clematis occidentalis subsp. grosseserrata (Rydberg) R. L. Taylor & McBryde
Treatment appears in FNA Volume 3.
Revision as of 07:34, 30 July 2020 by imported>Volume Importer
Stems ± viny, climbing or trailing, 0.25-2.5 m. Leaves: leaflets unlobed or occasionally 1-3-lobed, 2-11 cm, margins entire or less often shallowly crenate-serrate. Flowers: sepals often eventually widespreading, violet-blue to pale blue or rarely white, lanceovate, 3-6 cm, margins often ± fluted, tips acuminate. 2n = 16.
Phenology: Flowering spring–early summer.
Habitat: Often deep, fine soils in shady forest, also cliffs and other rocky sites in open woods and thickets
Elevation: 400-2800 m
Distribution
Alta., B.C., Sask., Yukon, Colo., Idaho, Mont., Oreg., Utah, Wash., Wyo.
Discussion
The names Clematis columbiana (Nuttall) Torrey & A. Gray and C. verticillaris var. columbiana (Nuttall) A. Gray have long and frequently been misapplied to this taxon. This erroneous usage continues in some horticultural references.
Selected References
None.
Lower Taxa
None.
"thin" is not a number.
... more about "Clematis occidentalis var. grosseserrata"
flattened +
petaloid +
dehiscing +
sterile +
flattened +
reduced +
terminal +
absent +
plumose +
anther-bearing +
absent +
scale-like;leaflike +
sepaloid +
absent +
aggregated +
globose;cylindric +
1-many-flowered +
small +
abundant +
pubescent +
flattened +
1-many-flowered +
symmetric +
nodding +
bisexual +
flattened-ellipsoid;terete;flattened-ellipsoid;terete;lenticular +
Often deep, fine soils in shady forest, also cliffs and other rocky sites in open woods and thickets +
1[-2]-flowered +
1-ternate +
undivided +
opposite +
cauline +
pubescent +
fluted +
absent +
1-many-flowered +
bractless +
hypogynous +
widely bell-shaped;rotate +
distinct +
absent +
conspicuous +
0;26 +
reduced +
tendril-like +
absent +
simple +
Brittonia +
1971 +
elongate +
1;many +
petaloid +
spurred +
not connivent +
violet-blue;pale blue or rarely white +
not persistent +
distinct +
widespreading +
lanceovate +
veined +
Endemic +
distinct +
many +
absent +
unarmed +
trailing +
absent +
persistent +
absent +
Clematis occidentalis var. grosseserrata +
Clematis occidentalis +
variety +
perennial +
herbaceous +
rhizomatous +
woody +