Canada's Plant Hardiness Site
ANUCLIM maps and models
Asclepias syriaca L.
common milkweed, silkweed, silky swallowwort
Plant description - Detailed description of the plant's characteristics. (may be an external site) ..more links
Note: a minimum number of distributed sites must be entered before a Climatic Range map can be produced.
Map for gardeners - Based on temperature variables only.
Current distribution map - Based on temperature and precipitation variables.
Climate change models - A list of potential climate change scenarios for this species
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