Book  (Oct 2001)  Page(s) 258.  
 
Clematis lasiantha
Common names: Chaparral clematis, pipestem clematis
Origin: United States
Species 1838
... white or cream, open, flat, flowers... four tepals... creamy white filaments and anthers... Male and bisexual flowers are carried on separate plants. In the wild, plants undergo a period of dormancy during summer before being revived by the rains...

Magazine  (1842)  Page(s) 412.  
 
... it seems desirable to mention the following, as the principal plants new to the country, imported through their means since the 1st of May, 1830, and now existing in the Society's collections, and more or less extensively distributed.
From Dr. Fischer, St. Petersburgh, F.M.H.S.
1838. Clematis lasiantha

Book  (1840)  Page(s) 9.  
 

 C. lasiantha (Nutt.! mss.): “ pubescent; leaves ternate, broadly ovate, obtusely cuneiform at the base; leaflets incisely toothed, the terminal one 3-lobed or trifid; flowers diæcious, solitary, on 2-leaved aggregated branchlets; sepals cuneate-oblong, spreading, villous on both surfaces; carpels......
“With the preceding.-Leaflets an inch and a half long and about an inch broad, almost villous beneath. Peduncles about three inches long, with a pair of entire or toothed leaflets near the base. Flowers more than an inch in diameter. Allied to C. orientale, but very distinct.” Nutt.

Book  (1840)  Page(s) 657.  
 
C. lasiantha.- California, Douglas !

Magazine  (1839)  Page(s) pl. 61.  
 
The two common hardy herbaceous plants, Clematis erecta and angustifolia, although placed at a great distance from each other in M. DeCandolle's distribution of the genus, are nevertheless so nearly related that there can be no doubt of their immediate affinity. In fact they cannot be distinguished by the characters given them in the Prodromus, which are almost equally applicable to either. C. angustifolia is said to have one flower only on a common stalk, which is never the case in the garden specimens, neither do I find it so in my wild specimens of the supposed variety C. lasiantha from Dahuria. The real distinction between them consists, as Reichenbach has well observed, in the narrow leaves and hairy carpels of one, as compared with the broad ovate leaves and smooth carpels of the other.

Website/Catalog  (1826)  Page(s) 81.  
 
Plantes herbacées de pleine terre...
CLEMATIS
lasiantha.