Poisonous properties of the whorled milkweeds Asclepias pumila and Averticillata vargeyeri . Fig. I.—Asclepias Fig. 2.—Asclepias pumila, Showing Plants Growing fromAdventitious Buds on the Horizontal Root. Bui. 942, U. S. Dept. of Agriculture. Plate II.

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Keywords: ., bookcentury1900, bookdecade1920, bookpublisherwashi, bookyear1921