NATIVE WOODY PLANTS OF THE UNITED STATES 201 



A large, spiny shrub to small or rarely large tree ; flowers April-May ; thicket 

 forming ; about 316 named varieties are known, the best-fruited types occurring 

 in the Middle West ; commonly sprouts from the roots to form extensive col- 

 onies ; 800-1,500 seeds per pound. 



Stomach records: Pine grosbeak. Observations: Prairie sharp-tailed grouse, 

 ring-necked pheasant ; leaves refused by captive marsh rabbits ; much eaten by 

 many kinds of birds. 



Primus andersonii Gray. Desert peach. 



Emplectocladus andersonii (Gray) Nels. and Ken., Amygaalus andersonii 

 (Gray) Greene. 

 Range: 4, 9. 



Site : Dry, well-drained, sun. 

 Fruit. Drupe. 



A small to large shrub or small tree ; flowers in May ; thorny, spreading ; 

 occurs on gravelly, sandy, or other soils ; extremely drought resistant ; taproot 

 well developed ; thicket forming. 



Considered fair to good sheep and goat browse and only slightly inferior for 

 cattle. 



Prunu's angustif olia Marsh. Cirickasaw plum. 



P. chicasa Michx. 



Range : 20, 22, 25, 28, 29, 30. 

 Site : Dry, well-drained, sun. 

 Fruit : Drupe, available May-August. 



A large shrub to small or large tree ; flowers March-April ; somewhat thorny ; 

 densely thicket forming ; commonly occurs in sandy soil ; 800-1,000 seeds per 

 pound. 



Var. watsonii (Sarg.) Waugh, (P. watsonii Sarg.) is a dwarf occurring in 

 regions 17 and 19. 



Prunus arkansana, see Prunus mexicana. 

 Prunus australis, see also Prunus mexicana. 



Prunus australis Beadle. Southern wild cherry. 



Padus australis Small. 

 Range: 29. 



Site: Well-drained, sun. 

 Fruit : Drupe, available July-August. 

 A small to large tree ; flowers in April ; occurs on clay soil. 



Prunus avium L. Sweet cherry. 



Range: 27, 28. 

 Site: Dry, well-drained, sun. 

 Fruit : Drupe, available in July. 



A small to large tree ; flowers April-May ; introduced from Eurasia and 

 more or less naturalized in the regions indicated ; wood used commercially. 

 Stomach records: Nine species of birds; red squirrel. 



Prunus besseyi Bailey (pi. 26, A). Western sand chexry. 



P. prunella Daniels, P. pumila besseyi (Bailey) Waugh. 

 Range : 15, 16, 18, 19, 23. 

 Site: Well-drained, sun. 

 Fruit: Drupe. 



A small, bushy shrub; flowers April-May; more or less prostrate; sprouting 

 from roots but rarely forming thickets ; occurs on sandy and other soils ; 4,000 

 seeds per pound; fruit produced the second or third year from seed; large- 

 fruited varieties are known. 



Observations: Ring-necked pheasant. Poisonous to livestock. 



Prunus borealis, see Prunus nigra. 

 Prunus capollin, see Prunus serotina. 

 Prunus capuli, see Prunus serotma. 



