Orobanchaceae GH: 01880016 Castilleja arvensis Schlechtendal & Chamisso USA: Idaho 7600-7700 f. alt., summit of Brundage Mounta... F. W. Pennell & L. Constance 20752 1937-7-5
GH: 01876985 Castilleja hispida Bentham USA: Idaho 3200-3400 f. alt., Lake Waha F. W. Pennell & L. Constance 20983 1937-7-21
GH: 01877731 Castilleja lutea A. Heller USA: Idaho 5200-5250 f. alt., west of Payette Lake F. W. Pennell & L. Constance 20763 1937-7-5
GH: 01878126 Castilleja miniata Douglas ex Hooker USA: Idaho Rim of Snake River Canyon, south of Zaza F. W. Pennell & L. Constance 21006 1937-7-21
GH: 01878929 Castilleja rhexifolia Rydberg USA: Idaho Valley S. E. of Rocky Ridge Lookout, Clearwa... F. W. Pennell & L. Constance 20908 1937-7-15
GH: 01878932 Castilleja rhexifolia Rydberg USA: Idaho Coolwater Mountain, east of Lowell F. W. Pennell & L. Constance 20892 1937-7-13
GH: 01880018 Castilleja sp. Linnaeus USA: Idaho Peninsula between main lobee of Payette Lake F. W. Pennell & L. Constance 20774 1937-7
GH: 01880017 Castilleja sp. Linnaeus USA: Idaho Peninsula between main lobes of Payette Lake F. W. Pennell & L. Constance 20769 1937-7
GH: 01879928 Cordylanthus capitatus Nuttall ex Bentham USA: Idaho peninsula between main lobes of Payette Lake F. W. Pennell & L. Constance 20771 1937-7-5
Plantaginaceae GH: 01998732 Collinsia parviflora Lindley USA: Idaho [data not captured] F. W. Pennell & L. Constance 21005 1937-7-21
GH: 01998729 Collinsia parviflora Lindley USA: Idaho [data not captured] F. W. Pennell & L. Constance 20775 1937-7-5
GH: 02002362 Penstemon attenuatus hyacinthinus Pennell USA: Idaho [data not captured] F. W. Pennell & L. Constance 20911 1937-7-15
GH: 02002363 Penstemon attenuatus hyacinthinus Pennell USA: Idaho [data not captured] F. W. Pennell & L. Constance 20758 1937-7-5
GH: 02002364 Penstemon attenuatus hyacinthinus Pennell USA: Idaho [data not captured] F. W. Pennell & L. Constance 21007 1937-7-21
GH: 02002365 Penstemon attenuatus hyacinthinus Pennell USA: Idaho [data not captured] F. W. Pennell & L. Constance 20993 1937-7-21
GH: 02002367 Penstemon attenuatus hyacinthinus Pennell USA: Idaho [data not captured] F. W. Pennell & L. Constance 20991 1937-7-21
GH: 02118837 Penstemon deustus Douglas USA: Idaho [data not captured] F. W. Pennell & L. Constance 20742 1937-7-5
GH: 00091256 Penstemon flavescens Pennell USA: Idaho Coolwater Mountain, east of Lowell, grassy, ... F. W. Pennell & L. Constance 20890 1937-7-13
GH: 02119555 Penstemon fruticosus (Pursh) Greene USA: Idaho [data not captured] F. W. Pennell & L. Constance 21000 1937-7-21
GH: 02119620 Penstemon fruticosus douglasii (Hooker) C. K. Schneider USA: Idaho [data not captured] F. W. Pennell & L. Constance 20743 1937-7-5
GH: 02119700 Penstemon gairdneri oregonus A. Gray USA: Idaho [data not captured] F. W. Pennell & L. Constance 20770 1937-7-5
GH: 02119815 Penstemon glandulosus Douglas ex Lindley USA: Idaho [data not captured] F. W. Pennell & L. Constance 20987 1937-7-21
GH: 02121357 Penstemon ovatus Douglas ex Hooker USA: Idaho [data not captured] F. W. Pennell & L. Constance 20906 1937-7-15
GH: 02121607 Penstemon payettensis A. Nelson & J. F. Macbride USA: Idaho [data not captured] F. W. Pennell & L. Constance 20757 1937-7-5
GH: 02122373 Penstemon rydbergii varians (A. Nelson) Cronquist USA: Idaho [data not captured] F. W. Pennell & L. Constance 10754 1937-7-5
GH: 01801009 Penstemon triphyllus Douglas USA: Idaho [data not captured] F. W. Pennell & L. Constance 20981 1937-7-21
GH: 01801181 Penstemon venustus Douglas USA: Idaho [data not captured] F. W. Pennell & L. Constance 20766 1937-7-5
GH: 01801177 Penstemon venustus Douglas USA: Idaho [data not captured] F. W. Pennell & L. Constance 20999 1937-7-21
GH: 01801176 Penstemon venustus Douglas USA: Idaho [data not captured] F. W. Pennell & L. Constance 20982 1937-7-21
GH: 01804530 Synthyris missurica (Rafinesque) Pennell USA: Idaho [data not captured] F. W. Pennell & L. Constance 20893 1937-7-13
GH: 01804955 Veronica americana Schweinitz ex Bentham USA: Idaho [data not captured] F. W. Pennell & L. Constance 20994 1937-7-21
Scrophulariaceae GH: 01840755 Diplacus nanus (Hooker & Arnott) G. L. Nesom USA: Idaho Payette Lake F. W. Pennell & L. Constance 20759 1937-7-5
GH: 01841082 Erythranthe breweri (Greene) G. L. Nesom & N. S. Fraga USA: Idaho Valley s.e. of Rocky Ridge Lookout, Clearwat... F. W. Pennell & L. Constance 1937-7-15
GH: 01841083 Erythranthe breweri (Greene) G. L. Nesom & N. S. Fraga USA: Idaho n. e. shore of Payette Lake F. W. Pennell & L. Constance 20777
GH: 01842203 Erythranthe lewisii (Pursh) G. L. Nesom & N. S. Fraga USA: Idaho north of Snowy Summit, near Lolo Creek, Clea... F. W. Pennell & L. Constance 20910 1937-7-15
GH: 01842292 Erythranthe microphylla (Bentham) G. L. Nesom USA: Idaho Shore of Payette Lake F. W. Pennell & L. Constance 20778
GH: 01842771 Erythranthe primuloides (Bentham) G. L. Nesom & N. S. Fraga USA: Idaho west of Payette Lake F. W. Pennell & L. Constance 20760
