Sivun Raphia frater elbea kuva

Kuvaus:

Figure 3.Distribution of Raphia frater subspecies (circles) relative to range of Populus species (coloured shading) in western North America. Half-circles represent transitional populations and/or phenotypically intermediate specimens. Ranges for Populus trichocarpa + Populus balsamifera and Populus angustifolia + Populus deltoides are combined, with both Populus balsamifera and Populus deltoides occuring in Alberta – Montana (upper right). Populus ranges adapted from USGS (2013).