Figure 2. Histogram of Distribution of Stalk Size from 2012 Survey

From

Decline in Milkweed (Asclepias syriaca) Populations in Central New Jersey over a One Year Period

Nikhil Gopal, Jamie Witsen

World Journal of Agricultural Research. 2015, 3(4), 119-122 doi:10.12691/wjar-3-4-1