In water of marshes, seepage areas, at edge of water along streams, subalpine 

 meadows, and in conifer forests, in N.M. (Taos, Rio Arriba, Santa Fe, San Miguel, 

 Bernalillo and Otero cos.) and Ariz. (Apache, Coconino, Cochise, Santa Cruz 

 and Pima cos.), June-Sept.; Mont, to B.C., s. to N.M., Ariz, and Calif. 



6. Clematis L. Clematis 



Herbaceous perennial vines that climb by twining of the petiolules or erect 

 suffrutescent herbs; leaves opposite, simple or variously compound; flowers soli- 

 tary or in panicles, terminal or axillary, often nodding; sepals usually 4, rarely 

 5 or 6, thin to coriaceous, white to variously colored, valvate in the bud, the 

 margins often induplicate; petals none or small, transitional into stamens; stamens 

 numerous, with adnate anthers; achene bodies compressed, usually more or less 

 rimmed; achene tails plumose to pubescent or nearly naked. 



About 250 species widely distributed in temperate and subtropical regions, 

 with several in temperate regions. 



1. Flowers small, creamy-white, in cymose panicles; sepals oval to oblong, 6-12 

 mm. long 1. C. virginiana. 



1. Flowers large, rose-color to violet-color, solitary and nodding on long 

 peduncles; sepals 25 mm. long or more, with wide undulate or 

 crisped margins 2. C crispa. 



1. Clematis virginiana L. Virgin's-bower, Devil's darning-needle. 



Plant almost glabrous; leaves simply 3-foliolate, very rarely pinnately 5-foliolate; 

 leaflets thin, ovate, often subcordate, 5-7.5 cm. long, incisely few-toothed or 

 somewhat lobed, glabrous or sparingly pilose and glabrate on lower surface; 

 panicles corymbiform, with numerous creamy-white flowers; sepals oval or oblong, 

 6-12 mm. long, anthers 0.6-1.5 mm. long; achenes brown or rufescent, pilose or 

 villous-hirsute, the styles 1-3 cm. long. 



Low grounds, thickets and borders of woods, edge of swamp forests, commonly 

 climbing in trees, in Okla. {Waterfall) and e. Tex. (San Augustine Co.), July- 

 Sept.; from e. Can to Man., s. to Ga., Ala., Miss., La., Tex. and e. Kan. 



2. Clematis crispa L. Blue jasmine. Fig. 45 L 



Plant climbing freely, glabrous or nearly so, often flowering when only 3 dm. 

 high; leaves compounded with 2 to 5 pairs of leaflets; leaflets from ovate to 

 lanceolate or even linear, cuneate to cordate at base, acute to acuminate at apex, 

 entire to rarely 3-foliolate, membranaceous, little reticulated; peduncle naked, 

 arising between a pair of compound or rarely simple leaves; calyx cylindric- 

 campanulate or urceolate-campanulate, rose-colored varying to violet; sepals 

 2.5-5 cm. long, recurved or spreading from near the middle, the spreading portion 

 with broad undulate thinnish margins; achenes 6-9 mm. broad; style canescent to 

 somewhat villous in flower, in fruit 2-3 cm. long and either almost glabrate (and 

 the upper part falling away in age) or finely appressed-pubescent. C. cylindrica 

 Sims, Viorna crispa (L.) Small. 



Frequently in wet soils, climbing on shrubs, along streams in low woodlands or 

 sometimes on coarse dry sandhills with available water in s.e. Okla. (McCurtain 

 Co.) and e. Tex., w. to Calhoun and Williamson cos., Mar.-Oct.; from Fla. to 

 Tex., n. to s.e. Va., IH. and Mo. 



The plant which typically flowers when low and has narrowly lanceolate to 

 linear leaflets (6-8 mm. wide) and whose sepals are artificially outspread is referred 

 to var. Walteri Gray. 



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