Europe. Pea (garden) _Pisum sativum_ L. A Western and central Asia, southern Europe, north India (?). Pea (wrinkled garden) _Pisum sativum_ L. F England (?). Pea (edible podded) _Pisum sativum_ var. _saccharatum_ Hort. C Holland, etc. Pepper (red) _Capsicum annuum_ L. E Brazil, western South America. Potato _Solanum tuberosum_ L. E Chile, Peru. Potato (sweet) _Ipomœa Batatas_ Poir. D Tropical America. Pumpkin _Cucurbita pepo_ L. E Subtropical and tropical America. Radish _Raphanus sativus_ L. B Temperate Asia. Radish (Japanese giant or Daikon) _Raphanus sativus_ L. (?) Japan, China. Rhubarb _Rheum Rhaponticum_ L. C Desert and subalpine regions of southern Siberia, Volga River. Rutabaga _Brassica oleracea_ var. _Napo-Brassica_ L. C Europe. Salsify or Oyster plant _Tragopogon porrifolius_ L. C(?) Southeastern Europe or Algeria. Spinach _Spinacea oleracea_ L. C Persia, southwestern Asia. Spinach (New Zealand) _Tetragonia expansa_ Thunb. F New Zealand. Squash (winter) _Cucurbita maxima_ Duch. E or D Tropical America. Squash (summer) _Cucurbita Pepo_ L. E Temperate or tropical America. Tomato _Lycopersicum esculentum_ Mill. F Peru. Tomato (currant or raisin) _L. pimpinellifolium_ Dunal F South America. Turnip _Brassica Rapa_ L. A Europe. Yams Several sp. including _Dioscorea alata_ L. and _D. Batatas_ Decne. B (?) Southeastern Asia, Africa and South Pacific Islands.