Flora of North America species comparison

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Clematis lasiantha

Clematis addisonii

chaparral clematis, pipestem, pipestem clematis

Addison Brown's clematis, Addison Brown's leather-flower, Addison's leather-flower, Addison's virgin's-bower
Stems

scrambling to climbing, 3-4 m. Leaf blade 3-foliolate;

leaflets ovate, largest leaflets usually 3-lobed, 1.5-6 × 1.5-5 cm;

terminal leaflet occasionally 3-cleft, margins usually toothed;

surfaces glabrous or sparsely silky.

usually ascending to erect, occasionally somewhat viny, 0.6-1 m, glabrous.
Leaves

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.
Inflorescences

axillary, flowers solitary, rarely 3-flowered cymes.

terminal and axillary, flowers solitary.
Flowers

unisexual;

pedicel (including peduncle) stout, 3.5-11 cm;

sepals wide-spreading, not recurved, white to cream, ovate or elliptic to obovate or oblanceolate, 10-21 mm, abaxially and adaxially pilose;

stamens 50-100;

filaments glabrous;

staminodes absent or 50-100;

pistils 75-100.

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.
Achenes

asymmetric-ovate, not broadly orbiculate, 3-4 × 1.5-2 mm, not conspicuously rimmed, glabrous;

beak 3.5-5.5 cm.

bodies puberulent;

beak 2.5-3.5 cm, plumose.
2n

= 16.

= 16.

Clematis lasiantha

Clematis addisonii
Phenology Flowering winter–spring (Jan–Jun). Flowering spring–early summer.
Habitat Chaparral, open woodlands Calcareous, dry woods, glades, rock outcrops
Elevation 0-2000 m (0-6600 ft) 200-600 m (700-2000 ft)
Distribution
from FNA
CA; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
from FNA
VA
[BONAP county map]
Discussion

Clematis lasiantha is common in the Coast Ranges and the foothills of the Sierra Nevada of California.

The Shasta used pounded stems or chewed or burned roots of Clematis lasiantha medicinally in the treatment of colds (D. E. Moerman 1986).

(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.)
Source FNA vol. 3. FNA vol. 3.
Parent taxa Ranunculaceae > Clematis > subg. Clematis Ranunculaceae > Clematis > subg. Viorna
Sibling taxa
C. addisonii, C. albicoma, C. baldwinii, C. bigelovii, C. catesbyana, C. coactilis, C. columbiana, C. crispa, C. drummondii, C. fremontii, C. glaucophylla, C. hirsutissima, C. ligusticifolia, C. morefieldii, C. occidentalis, C. ochroleuca, C. orientalis, C. pauciflora, C. pitcheri, C. recta, C. reticulata, C. socialis, C. tangutica, C. terniflora, C. texensis, C. versicolor, C. viorna, C. virginiana, C. vitalba, C. viticaulis, C. viticella
C. albicoma, C. baldwinii, C. bigelovii, C. catesbyana, C. coactilis, C. columbiana, C. crispa, C. drummondii, C. fremontii, C. glaucophylla, C. hirsutissima, C. lasiantha, C. ligusticifolia, C. morefieldii, C. occidentalis, C. ochroleuca, C. orientalis, C. pauciflora, C. pitcheri, C. recta, C. reticulata, C. socialis, C. tangutica, C. terniflora, C. texensis, C. versicolor, C. viorna, C. virginiana, C. vitalba, C. viticaulis, C. viticella
Synonyms Viorna addisonii
Name authority Nuttall: in J. Torrey and A. Gray, Fl. N. Amer. 1: 9. (1838) Britton: Mem. Torrey Bot. Club 2: 28. (1890)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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