“美国Dean Swift种子公司”专门批发野生花卉和针叶树木种子。包括Abies concolor (Concolor Fir)长臂猿冷杉（素心杉）；Abies lasiocarpa (Subalpine Fir)金莲冷杉（亚高山冷杉）；Picea engelmannii (Engelmann Spruce)英格曼云杉；Picea glauca densata (Black Hills Spruce)黑山云杉；Picea pungens (Blue Spruce)蓝云杉；Pinus aristata (Bristlecone Pine)狐尾松；Pinus edulis (Pinyon Pine)牛肝菌松；Pinus flexilis (Limber Pine)柔枝松（林伯松）；Pinus ponderosa (Ponderosa Pine)黄松；Pinus strobiformis (Southwest White Pine)西南白松以及野生加拿大一支黄、鸢尾、紫苑等。
网址：http://www.deanswiftseed.com
