NATIVE WOODY PLANTS OF THE UNITED STATES *[\ 



Berberis nervosa Pursh. (pi. 1, B). Oregon-grape. 



Mahonia nervosa (Pursh) Nutt, Odostemon nervosus Bydb. 

 Range: 1, 2, 4, 12. 

 Site: Dry, well-drained, sun, shade. 

 Fruit : Berry, available July-August. 



A small evergreen shrub ; flowers May-June ; spreads by creeping rootstocks 

 to form thickets ; resistant to black stem rust. 

 Observations: Rocky Mountain black-tailed deer. 



Berberis nevinii Gray. Nevin hollygrape. 



Mahonia nevinii (Gray) Fedde, Odostemon nevinii (Gray) Abrams. 

 Range: 4, 5, 10. 

 Site : Dry, well-drained, sun. 

 Fruit : Berry. 



A small to large evergreen shrub; occurs on sand, clay loam, and other 

 soils ; at first loosely branched, later more compact ; root system shallow ; 

 drought resistant ; rare and local ; susceptible to black stem rust. 



Berberis pinnata Lag. Wavyleaf hollygrape. 



Mahonia pinnata Fedde, Mahonia fascicularis DC., Odostemon fascicularis 

 (DC.) Abrams. 

 Range : 1, 3, 5. 

 Site : Dry, well-drained, sun. 

 Fruit: Berry. 



A small to large evergreen shrub with thick foliage; preliminary tests indi- 

 cate that this species is resistant to black stem rust. Of some importance as a 

 honey plant. 



Berberis pumila Greene. Dwarf hollygrape. 



Mahonia pumila (Greene) Fedde, Odostemon pumilus Heller. 

 Range: 4. 



Site : Well-drained, sun. 

 Fruit : Berry. 



A small evergreen shrub ; occurs from 3,000-5,000 feet ; susceptibility to 

 attack of black stem rust uncertain, although apparently resistant. 



Berberis repens Lindl. Creeping hollygrape. 



Odostemon repens (Lindl.) Cockerell, Mahonia repens (Lindl.) Don, Ber- 

 beris nana Greene. 



Range : 4, 5, 7, 9, 11, 12, 13, 14, 15, 16. 

 Site : Dry, well-drained, sun, shade. 

 Fruit : Berry, available in September. 



A small evergreen shrub ; flowers in May ; the rhizomes produce shoots and 

 deep roots at intervals ; resistant to black stem rust. 



Stomach records: Black- tailed deer, plains white-tailed deer. Reputed to be 

 poisonous to stock but probably not very seriously so. 



Berberis sinensis, see Berberis tliunbergii. 



Berberis swaseyi Buckl. Blue agarita. 



Mahonia swaseyi Fedde. 

 Range: 16. 



Site : Dry, well-drained, sun. 

 Fruit : Berry, available May-June. 



A small evergreen shrub ; flowers in May ; grows on many soils, including 

 limestone ; resistant to cold and drought ; berries large, borne abundantly almost 

 every year ; very ornamental ; a good hedge plant ; susceptible to black stem rust. 



Berberis tliunbergii DC. Thunberg barberry. 



B, japonica, B. sinensis of some. 



Range : 1, 2, 4, 21, 23, 24, 25, 27, 28, 29. 

 Site : Well-drained, sun. 



Fruit : Berry ; available in August, persistent all year round. 



A small to large, somewhat straggling, spiny shrub ; native of Japan, but 



more or less naturalized in the regions indicated ; evergreen southward ; grows 



in many kinds of soils ; has not demonstrated its ability to compete with native 



vegetation, including grasses ; on dry banks has been repeatedly observed to die 



