NATIVE WOODY PLANTS OF THE UNITED STATES 
107 
A large shrub to small or large tree ; flowers May-June ; spiny ; often leafless 
in the dry season; forms dense impenetrable thickets; wood valued as fuel. 
Stomach records: Six species of birds. Observations: Much sought after by 
birds. Somewhat browsed by livestock. 
Condalia obtusifolia (Hook.) Weberb. Lotebush. 
Rhamnus obtusifolia Hook., Zizyphus obtusifolia (Hook.) Gray. 
Range: 11, 16, 17, 20, 29, 30, 
Site: Dry, sun. 
Fruit: Drupe, available in June. 
A small to large, spiny shrub ; very persistent when established. 
Stomach records: Phainopepla. Observations: Extensively eaten by gray fox. 
Condalia parryi (Torr.) Weberb. Parry jujube. 
Zizyphus parryi Torr, 
Range : 10. 
Site : Dry, sun. 
Fruit: Drupe. 
A large, spiny shrub ; flowers in April. 
Condalia spathulata Gray. Squawbiish. 
Range: 10, 11, 16, 17. 
Site : Dry, sun. 
Fruit: Drupe. 
A large, more or less evergreen shrub; densely branched, rigid; occurs in 
sandy and other soils. 
Stomach records: Gambel quail. 
Conradina canescens (Torr. and Gray) Gray. 
Range: 30. 
Site: Well-drained, sun, shade. 
Fruit: Nutlet. 
A small, much-branched, stilf shrub ; flowers May-July ; occurs in sandy and 
other soils. 
Cordia boissieri DO. Anacahuita. 
Range: 11, 17. 
Site: Dry, well-drained, sun. 
Fruit : Drupe, available August-September. 
A large shrub to small or rarely large tree ; evergreen ; flowers April-June ; 
may occur on limestone soils; fruit edible but said to cause dizziness; very 
ornamental in cultivation. 
Livestock are apparently fond of the fruit; seed eaten by hogs, 
Corema conradii Torr. Plymouth crowberry. 
Empetrum conradii Torr. 
Range: 26, 27, 28. 
Site: Well-drained, sun. 
Fruit: Dry drupe, available July-August. 
A small, evergreen shrub; flowers April-May; diffusely branched; usually 
dioecious ; staminate plants very handsome in flower ; occurs in sandy and 
other soils ; forms large patches. 
Coreopsis gigantea (Kellogg) Hall. Giant coreopsis. 
Range: 5. 
Site: Dry, well-drained, sun. 
Fruit : Achene. 
A small robust, evergreen, single-stemmed shrub. 
Corethrogyne cana, see Aplopappus canus. 
Corethrogyne detonsa, see Aplopappus canus. 
Cornus spp. Cornels, dogv/oods. 
The species are often diflScult to separate, the characters used to distinguish 
them often being very minor ; probably some species will eventually be reduced 
to synonyms; most species grow in neutral soil; propagation is by seed stratified 
at 32°-50° F. for 120 to 140 days and sown in spring. Seeds of many germinate 
the first year if planted promptly on ripening; many species more easily 
propagated by cuttings. 
Stomach records (in addition to specific records) : Sixty species of birds, in- 
cluding bobwhite and Richardson's grouse; gray fox, Virginia deer; composed 
