202 MISC. PUBLICATION 30S, U. S. DEPT. OF AGRICULTURE 
Prunus caroliniana Ait. Laurel cherry. 
P. sempervirens Willd., Laurocerasus caroliniana (Mill.) Roem., Pacliis 
caroliniana Mill., Cerasus ca7'oliniana Michx. 
Range : 20, 29, 30. 
Site : Well-drained, moist, sun. 
Fruit : Drupe, persistent the year round. 
A large shrub to small or large tree; evergreen; flowers February-April; 
rapid growing ; thicket forming. 
Observations: Three species of birds. Leaves poisonous to livestock. 
Pninus cerasus L. Sour cherry. 
Range : 22, 25, 27. 
Site: Dry, well-drained, sun. 
Fruit : Drupe, available June- July. 
A small to large tree ; flowers April-May : introduced from southern Europe 
and more or less naturalized in the regions indicated. 
Stomach records: Three species of birds, including bobwhite. Olservations: 
Seven species of birds. 
Prunus chicasa, see Prunus angustifolia. 
Prunus corymbulosa Rydb. Eocky Mountain red cherry. 
P. pennsylvanica corymtulosa (Rydb.) Wight, Cerasus tricliopetala Greene. 
Range: 12. 
Site: Dry, sun. 
Fruit : Drupe. 
A small to large shrub ; flowers May-June ; commonly occurs in stony places. 
Prunus cuneata, see Prunus susquehanae. 
Prunus cuthbertii Small. Cutlihert cherry. 
Padus cuthhertii Small. 
Range; 28. 
Site: Well-drained, moist, sun. 
Fruit: Drupe, available July-August. 
A large shrub to small tree. 
Prunus demissa (Nutt.) Walp. (pi. 26, B). Western chokecherry. 
P. virginiana demissa Sarg., Cerasus demissa Nutt., Padus demissa Roem. 
Range : 1, 2, 4, 6, 7, 9, 12, 13, 14, 15, 16, 18, 21. 
Site : Dry. well-drained, moist, sun. 
Fruit : Drupe, available July-October, 
A large shrub to small tree ; flowers April-INIay ; thicket forming. 
Yar. fnelanocarpa Nels. (Padus melanocarpa (Nels.) Shaf., Prunus melano- 
carpa (Nels.) Rydb.), the black western chokecherry, occurs with the species; 
thicket forming ; spreads by rhizomes ; root system shallow with occasional 
deep-feeding roots ; 3,000-5,000 seeds per pound. 
Stomach records: Six species of birds; black-tailed deer, plains white-tailed 
deer. Observations: Three species of birds, including ring-necked pheasant, 
sharp- tailed grouse ; of outstanding importance as browse for mule deer ; pica ; 
eaten avidly by many birds. Commonly lightly to moderately browsed by 
stock; overgrazing of this species commonly leads to poisoning, notably in the 
spring ; not harmful in the fall. 
Prunus depressa, see Prunus pumila. 
Prunus emarginata (Dougl.) Walp. Bitter cherry. 
Cerasus emarginata Dougl., G. glandulosa Kellogg., C. calif ornica Greene, 
C. crenulata Greene, C. arida Greene, C. rhamnoides Greene, C. kellog- 
giana Greene, C. padifolia Greene, C. oMiqua Greene, C. parvifolia 
Greene, C. ohtusata Greene. 
Range : 1, 2, 4, 6, 8, 9, 10, 11, 12, 13, 14. 
Site : Dry, well-drained, moist, sun. 
Fruit: Drupe, available May-September. 
A large shrub to small or large tree; flowers April-May; densely thicket 
forming ; flowers and fruit appear earliest near the Coast. 
Var. villosa Sudw., (P. mollis Walp., P. emarginata moUis Brew., Cerasus 
pruni folia Greene, P. pruni folia (Greene) Shaf.), the plumleaf cherry, occurs 
within the range of the species. 
