Amaranthaceae GH: 01928641 Amaranthus albus Linnaeus USA: Pennsylvania Sellersville C. D. Fretz 1923-8-26
GH: 01929429 Amaranthus retroflexus Linnaeus USA: Pennsylvania Sellersville C. D. Fretz 1923-8-20
Asclepiadaceae GH: 01082808 Asclepias viridiflora Rafinesque USA: Pennsylvania Cat Hill, Sellersville C. D. Fretz 1923-8-25
Asteraceae GH: 02189440 Eupatorium hyssopifolium Linnaeus USA: Pennsylvania Bristol C. D. Fretz 1923-9-29
GH: 02213500 Liatris spicata (Linnaeus) Willdenow USA: Pennsylvania Ridge Valley Churches, near Argus C. D. Fretz 1923-8-14
GH: 01924164 Vernonia noveboracensis (Linnaeus) Michaux USA: Pennsylvania Bethlehem Pike. South of Ridge Hill C. D. Fretz 1923-8-8
Caesalpiniaceae GH: 01679323 Senna hebecarpa (Fernald) H. S. Irwin & Barneby USA: Pennsylvania Harr's Mill, near Sellersville C. D. Fretz 1923-7-23
Convolvulaceae GH: 02055230 Calystegia pubescens Lindley USA: Pennsylvania Sellersville C. D. Fretz 1923-8-16
Cucurbitaceae GH: 01544125 Echinocystis lobata (Michaux) Torrey & A. Gray USA: Pennsylvania Along Branch Creek, Sellersville C. D. Fretz 1923-8-9
GH: 01544640 Sicyos angulatus Linnaeus USA: Pennsylvania 2 miles north of Penn's Manor C. D. Fretz 1923-9-29
Cyperaceae GH: 02371610 Carex sparganioides Muhlenberg ex Willdenow USA: Pennsylvania [data not captured] C. D. Fretz 1923-6-2
Iridaceae GH: 01747228 Iris germanica Linnaeus USA: Pennsylvania Sellersville C. D. Fretz 1923-6-8
GH: 01748779 Sisyrinchium angustifolium Miller USA: Pennsylvania Ridge Valley Churches. Near Argus C. D. Fretz 1923-6-19
Juncaceae GH: 02098375 Juncus acuminatus Michaux USA: Pennsylvania [data not captured] C. D. Fretz 1923-7-14
Lamiaceae GH: 01600326 Mentha spicata Linnaeus USA: Pennsylvania near Almont C. D. Fretz 1923-7-23
GH: 01599332 Monarda fistulosa mollis (Linnaeus) Bentham USA: Pennsylvania Sellersville C. D. Fretz 1923-8-3
GH: 01596441 Pycnanthemum virginianum (Linnaeus) B. L. Robinson & Fernald USA: Pennsylvania Scott's Creek, 2 miles east of Tullytown C. D. Fretz 1923-9-29
GH: 01697133 Scutellaria elliptica Sprengel USA: Pennsylvania Ridge Valley Churches, near Argus C. D. Fretz 1923-6-25
GH: 01699195 Stachys hispida Pursh USA: Pennsylvania Sellersville C. D. Fretz 1923-7-18
Orobanchaceae GH: 02034421 Agalinis purpurea (Linnaeus) Pennell USA: Pennsylvania Along Scott's Creek, 2 miles from Tullytown C. D. Fretz 1923-9-29
Rosaceae GH: 01586773 Agrimonia pubescens Wallroth USA: Pennsylvania near Almont C. D. Fretz 1923-7-26
GH: 01729336 Amelanchier stolonifera Wiegand USA: Pennsylvania Along Ridge Road, near Almont C. D. Fretz 1923-7-18
GH: 01611319 Crataegus crus-galli Linnaeus USA: Pennsylvania Tohickon Bridge, east of Tuckertown C. D. Fretz 1923-6-2
GH: 01606877 Fragaria virginiana Miller USA: Pennsylvania Ridge Valley Churches, near Argus C. D. Fretz 1923-5-14
GH: 01586206 Spiraea tomentosa Linnaeus USA: Pennsylvania Tullytown C. D. Fretz 1923-9-29
Selaginellaceae GH: 02075026 Selaginella apoda (Linnaeus) C. Morren USA: Pennsylvania Ridge Valley Churches - near Argus, West Roc... C. D. Fretz 1923-6-19
Violaceae GH: 02146803 Viola hirsutula Brainerd USA: Pennsylvania Ridge Valley Churches, near Argus C. D. Fretz 1923-5-14
GH: 02211765 Viola subsinuata (Greene) Greene USA: Pennsylvania Ridge Valley Churches, near Argus C. D. Fretz 1923-5-14
