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Index of Botanical Specimens
Search for collectorid:[4068] and year collected:[1921]
= with images
Boraginaceae
GH: 02026255
Cynoglossum virginianum
Linnaeus USA: Pennsylvania Rock Hill C. D. Fretz 1921-5-22
Lamiaceae
GH: 01552345
Lycopus americanus
Muhlenberg ex W. P. C. Barton USA: Pennsylvania Sellersville: Sellersville C. D. Fretz 1921-8-11
GH: 01700048
Teucrium canadense
Linnaeus USA: Pennsylvania Sellersville: Sellersville C. D. Fretz 1921-7-1
Rosaceae
GH: 01570501
Potentilla simplex
Michaux USA: Pennsylvania Sellersville: Sellersville C. D. Fretz 1921-4-30
Violaceae
GH: 02146802
Viola hirsutula
Brainerd USA: Pennsylvania Rock Hill C. D. Fretz 1921-4-28