48 BARBERRY FAMILY 



Clematis paniculata T h u n b e r g 1 794 Clematis 



A vigorous climbing vine, climbing over fences, trellises, porches, etc, ; 

 leaves 3-5-foliate (the first pair of leaves of a shoot usually entire and 

 cordate) leaflets ovate, rounded or mostly cordate at the base, acuminate 

 at the apex, glabrous on both sides, young leaves with blotches of white 

 along the veins, 2.5-5 cm. long, 1.8-3 cm. wide, the widened bases of the 

 petioles connate; flowers in axillary and terminal panicles, white, fra- 

 grant, 2.5-3 cm. broad; fruit with persistent, plumose styles: panicu- 

 lata, in a panicle. 



Extensively cultivated as an arbor and trellis plant. Native of Japan. 

 Flowers and fruits in autumn (Sept. -Oct.) 



Berberidaceae Barberry Family 



Shrubs or herbs with alternate or basal simple or compound leaves, 

 with or without stipules; flowers in racemes or solitary; sepals and 

 petals imbricated in the bud, mostly in 2 whorls of 3 each, occasionally 

 2 or 4 in the whorl; stamens as many as the petals and in front of them, 

 or more numerous : anthers usually opening by two valves : carpel 1 ; 

 style short ; ovules 2-many, fruit a berry or a capsule. 



The following genus is represented in Minnesota by two cultivated 

 species. 



Berberis L i n n e 1753 Barberry 



Shrubs with yellow wood and inner bark, usually spiny ; leaves mostly 

 in fascicles, simple or compound; flowers yellow, in drooping racemes or 

 singly from each fascicle; sepals 6. oblong, with 2-6 acutish, sepal- 

 like bracts on the outside; petals 6, obovate, with two glands at the 

 base; stamens 6. with sensitive filaments, closing up around the style 

 when touched; anthers opening by valves; pistil 1, stigma shield-shaped; 

 fruit a 1-few seeded berry. 



A genus of about 75 species, natives of North America. Europe, 

 northern Asia and South America. About 12 species occur in N. Am. 



Key to the Species 



1. Leaves serrate; flowers and fruits in racemes B. vulgaris 



2. Leaves entire, flowers mostly 1 to each leaf- 



cluster B. Thunbergii 



