Clematis hirsutissima
Clematis addisonii
Douglas' clematis, hairy clematis, leatherflower, sugar bowls, vaseflower
Addison Brown's clematis, Addison Brown's leather-flower, Addison's leather-flower, Addison's virgin's-bower
erect, not viny, 1.5-6.5 dm, hirsute (sometimes sparsely so in var. hirsutissima) or densely short, soft-pubescent to nearly glabrous.
usually ascending to erect, occasionally somewhat viny, 0.6-1 m, glabrous.
blade 2-3-pinnate;
leaflets often deeply 2-several-lobed, if lobed than lateral lobes usually small and distinctly narrower than central portion, leaflets or lobes linear to lanceolate, 1-6 × 0.05-1.5 cm, thin, not prominently reticulate;
surfaces sparsely to densely silky-hirsute, not glaucous.
all simple, blade often 1-pinnate on distal and middle leaves on vigorous plants 4-13 × 2-9.5 cm;
leaflets 2-6 plus additional tendril-like terminal leaflet, ovate, unlobed, 1.5-6 × 1-4.5 cm, not prominently reticulate;
surfaces abaxially glabrous and glaucous.
terminal, flowers solitary.
terminal and axillary, flowers solitary.
broadly cylindric to urn-shaped;
sepals very dark violet-blue or rarely pink or white, oblong-lanceolate, 2.5-4.5 cm, margins narrowly expanded distally, 0.5-2 mm wide, thin, distally ± crisped, tomentose, tips obtuse to acute, slightly spreading, abaxially usually densely hirsute, occasionally moderately so.
ovoid to broadly urn-shaped;
sepals purple or reddish purple, whitish toward tips, ovate-lanceolate, 1.2-2.5 cm, margins not expanded, thick, not crispate, tomentose, tips acute, spreading, abaxially glabrous.
bodies densely long-pubescent;
beak 4-9 cm, plumose.
bodies puberulent;
beak 2.5-3.5 cm, plumose.
= 16.
Clematis hirsutissima
Clematis addisonii
Varieties 2 (2 in the flora).
The varieties of Clematis hirsutissima, although highly dissimilar in their extreme forms, intergrade extensively in Wyoming, Colorado, and Utah.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Of conservation concern.
Clematis addisonii is known only from Botetourt, Montgomery, Roanoke, and Rockbridge counties in western Virginia. Reports of this infrequent species from other southeastern states have been based on misidentified specimens (W. M. Dennis 1976).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Leaflets and lobes linear to narrowly lanceolate, 0.5–6(–10) mm wide. | var. hirsutissima |
1. Leaflets and lobes narrowly to broadly lanceolate or ovate, 5–15 mm wide. | var. scottii |
OR
WA
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
