388 Beekeeping 



Pepper tree, Schinus Molle. Southern California, introduced. 

 Regular producer of nectar. Honey amber, strong flavor. 



Persimmon, Diospyros mrginiana. Tree to 100 feet, May-June, 

 eastern United States. 



Phacelia hispida and P. tanacetifolia. Of value in California. 

 Honey of P. hispida granulates quickly. Species of Phacelia 

 valued by beekeepers in Europe. 



Plantaginaceae ; see Plantain family. 



Plantain, Plantago spp. Pollen. 



Plantain family, Plantaginacese ; see Plantain. 



Pleurisy-root ; see Milkweed. 



Plums, Prunus spp. Cultivated and various wild species. Spring. 



Polygonaceae ; see Buckwheat family. 



Polygonum lapathifolium and P. punctatum are of value in Cali- 

 fornia. 



Poma rosa ; see Rose Apple. 



Poplar ; see Tulip Poplar. 



Poplars, Populus spp. Pollen. 



Poppy, Papaver spp. PoUen. 



Poppy family, Papaveraceae ; see Poppy, Prickly Poppy, Blood- 

 root and California Poppy. 



Potato family, Solanaoeas ; see Tobacco. 



Prickly pear ; see Cactus. 



Prickly poppy, Argemone platyceras. Texas, pollen, May-July. 



Pride of India ; see China-tree. 



Primrose family, PrimulaoeEB ; see Loosestrife. 



Primulaceae ; see Primrose family. 



Privet, Ligustrum spp. Not important. 



Pumpkin ; see Gourd family. 



Purple medic ; see Alfalfa. 



Purple sage ; see Sage. 



Radish, Raphanus sativus. Pollen, nectar. 



Ragweed, Ambrosia elatior. Annual herb, 1-6 feet, July to frost, 



flowers in racemes, green. Throughout United States, a 



troublesome weed. An important source of pollen, yields 



no nectar. 

 Ragweed family, Ambrosiaceae ; see Ragweed and Cocklebur. 

 Ranunculacese ; see Crowfoot family. 

 Rape, mustard, Brassioa spp. Pollen and nectar. Especially 



valuable in California {B. nigra). Honey granulates rapidly. 

 Raspberry, blackberry, Rubus spp. Various species of value. 

 Raspberry ; see also Wild Raspberry. 

 Rattan vine, Berchemia scandens. Some surplus. Honey dark 



amber, April, Texas. 



