Document
Morton Arboretum Prairie Restoration Project: 1960-1980, Raymond F. Schulenberg 1980s
Schulenberg, Ray
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Moehringia lateriflora (L.) Fenzl (bluntleaf sandwort), flowers on stemsMay 1976
Armstrong, Patricia K.
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Helianthus annuus L. (common sunflower), habit, habitat July 29 1967
Armstrong, Patricia K.
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Filipendula rubra (Hill) B. L. Robins. (queen of the prairie), flowersJuly 8 1974
Armstrong, Patricia K.
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Teaching Environmental Awareness Program Participants at the Markham PrairieSeptember 27 1976
Armstrong, Patricia K.
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Liatris aspera Michx. (rough blazing star) and Solidago speciosa Nutt. (showy goldenrod), habitat August 22 1981
Armstrong, Patricia K.
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Echinacea pallida (Nutt.) Nutt. (pale purple coneflower), habit, habitatJune 18 1985
Armstrong, Patricia K.
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Sorghastrum nutans (L.) Nash (Indian grass), seeds September 1974
Armstrong, Patricia K.
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Hesperostipa spartea (Trin.) Barkworth (porcupine grass), stemsJune 21 1978
Armstrong, Patricia K.
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Koeleria macrantha (Ledeb.) Schultes (June grass) and Silphium laciniatum L. (compass plant), habitat July 9 1982
Armstrong, Patricia K.
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Eryngium yuccifolium Michx. (rattlesnake master) and Amorpha canescens Pursh (leadplant), habitat July 11 1978
Armstrong, Patricia K.