Flora of the State of Washington, Vol. 11 (Classic Reprint) CHARLES V. PIPER

Excerpt from Flora of the State of Washington, Vol. 11

The following account of the flora of the State of Washington, by Prof. C. V. Piper, is based on his study of the plants of that State during a period of twenty years. This work was carried on Это и многое другое вы найдете в книге Flora of the State of Washington, Vol. 11 (Classic Reprint) (Charles V. Piper)