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ARTICLE |

Statistics on Hay-Fever Plants Wanted

W. Scheppegrell, M.D.
JAMA. 1916;LXVII(5):386. doi:10.1001/jama.1916.02590050064025.
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ABSTRACT

To the Editor:  —As the fall hay-fever season commences in most localities in August, the American Hay-Fever Prevention Association requests interested observers in each state to report on any or all of the following points:

  1. Beginning of the florescence of the (a) common ragweed (Ambrosia elatior), (b) giant rag-weed (Ambrosia trifida), (c) the western rag-weed (Ambrosia psilostachya), (d) the cockle bur (Xanthium pennsylvanicum), (e) marsh elder (Iva ciliata), (f) the western marsh elder (Iva axillaris), and (g) the gaetnerias. These plants bloom in most sections in August and September, and are all wind-pollinated and potentially hay-fever plants.

  2. The date of the beginning of fall hay-fever in these sections, and the coincidence of its development with the florescence of one or more of these plants.

A large number of replies will increase the statistical value of the reports. Any other statistical information will be appreciated. Address American Hay-Fever Prevention Association, Audubon

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