Apocynaceae GH: 02179479 Apocynum androsaemifolium Linnaeus USA: Oregon [no additional data] L. F. Henderson 648 1924-6-20
Asteraceae GH: 00968874 Artemisia dracunculus Linnaeus USA: Oregon banks of the Columbia River L. F. Henderson 689 of 1924 1924-9-10
GH: 00988936 Artemisia ludoviciana incompta (Nuttall) D. D. Keck USA: Oregon cliffs of the Columbia L. F. Henderson 688 of 1924 1924-9-10
GH: 01234063 Artemisia michauxiana Besser USA: Oregon bluffs of Columbia L. F. Henderson 687 of 1924 1924-9-10
GH: 02172746 Cirsium acanthodontum S. F. Blake USA: Oregon [data not captured] L. F. Henderson 697 of 1924 1924-6-29
GH: 02172746 Cirsium acanthodontum S. F. Blake USA: Oregon [data not captured] L. F. Henderson 697 of 1924 1924-8-3
GH: 02353581 Erigeron inornatus (A. Gray) A. Gray USA: Oregon [data not captured] L. F. Henderson 105 1924-6-14
GH: 02587084 Euthamia occidentalis Nuttall USA: Oregon [data not captured] L. F. Henderson 729 of 1924 1924-8-31
GH: 01834199 Lactuca biennis (Moench) Fernald USA: Oregon [data not captured] L. F. Henderson 720 of 1924 1924-7-4
GH: 02022310 Saussurea americana D. C. Eaton USA: Oregon [data not captured] L. F. Henderson 724 of 1924 1924-8-1
Crassulaceae GH: 01991352 Sedum divergens S. Watson USA: Oregon Bluffs, Mt. Hood L. F. Henderson 673 1924-8-20
Cyperaceae GH: 02368178 Carex breweri Boott USA: Oregon [data not captured] L. F. Henderson 967 1924-8-2
GH: 02394636 Carex disperma Dewey USA: Oregon [data not captured] L. F. Henderson 970 1924-8-1
GH: 02391814 Carex echinata Murray USA: Oregon [data not captured] L. F. Henderson 968 of 1924 1924-6-10
GH: 02370386 Carex hoodii Boott USA: Oregon [data not captured] L. F. Henderson 424 1924-5-20
GH: 02395704 Carex jonesii L. H. Bailey USA: Oregon [data not captured] L. F. Henderson 971 1924-6-10
GH: 02394012 Carex stipata Muhlenberg ex Willdenow USA: Oregon [data not captured] L. F. Henderson 960 1924-7-7
GH: 01773809 Carex utriculata Boott USA: Oregon [data not captured] L. F. Henderson 976 1924-8-1
Ericaceae GH: 01562153 Chimaphila menziesii (R. Brown) Sprengel USA: Oregon to near Colum-bia R L. F. Henderson 752 of 1924 1924
GH: 01562200 Chimaphila umbellata (Linnaeus) W. P. C. Barton USA: Oregon E. Mt Hood. L. F. Henderson 751 of 1924 1924-7-24
GH: 01683207 Phyllodoce empetriformis (Smith) D. Don USA: Oregon [data not captured] L. F. Henderson 745 1924-6-29
GH: 01683654 Pterospora andromedea Nuttall USA: Oregon [data not captured] L. F. Henderson 747 1924-8-1
GH: 01761910 Pyrola minor Linnaeus USA: Oregon [data not captured] L. F. Henderson 753 1924-6-28
GH: 01761970 Pyrola picta Smith USA: Oregon [data not captured] L. F. Henderson 755 1924-7-24
GH: 01762141 Rhododendron albiflorum Hooker USA: Oregon [data not captured] L. F. Henderson 748 1924-8-3
Orchidaceae AMES: 02028057 Goodyera oblongifolia Rafinesque USA: Oregon [no additional data] L. F. Henderson 807 1924-9-6
AMES: 02051342 Listera cordata (Linnaeus) R. Brown USA: Oregon Mt. Hood L. F. Henderson 842 1924-6-30
AMES: 02063807 Platanthera dilatata leucostachys (Lindley) Luer USA: Oregon Middle afts, E. Mt. Hood L. F. Henderson 845 1924
AMES: 02063954 Platanthera elegans Lindley USA: Oregon Lower Valley L. F. Henderson 839 1924-7-15
AMES: 02050178 Platanthera stricta Lindley USA: Oregon Middle afts, Mt. Hood L. F. Henderson 838 1924
Plantaginaceae GH: 01815483 Penstemon davidsonii Greene USA: Oregon [data not captured] L. F. Henderson 938 of 1924 1924-8-2
GH: 02122483 Penstemon serrulatus Menzies ex Smith USA: Oregon [data not captured] L. F. Henderson 936 of 1924 1924-6-16
GH: 01811581 Veronica scutellata Linnaeus USA: Oregon [data not captured] L. F. Henderson 940 of 1924 1924-5-20
GH: 01812559 Veronica wormskjoldii nutans (Bongard) Pennell USA: Oregon [data not captured] L. F. Henderson 941 of 1924 1924-8-2
Poaceae GH: 02579183 Agrostis thurberiana Hitchcock USA: Oregon Subalpine woods, along a creek, above Head R... L. F. Henderson 1047 1924-8-1
GH: 02579179 Agrostis thurberiana Hitchcock USA: Oregon Moist ground along White River, South Mt. Ho... L. F. Henderson 1045 1924-6-29
GH: 02579183 Podagrostis thurberiana (Hitchcock) Hultén USA: Oregon Subalpine woods, along a creek, above Head R... L. F. Henderson 1047 1924-8-1
GH: 02579179 Podagrostis thurberiana (Hitchcock) Hultén USA: Oregon Moist ground along White River, South Mt. Ho... L. F. Henderson 1045 1924-6-29
Primulaceae GH: 00073391 Dodecatheon poeticum L. F. Henderson USA: Oregon Eastern part of county, high meadows, Col. R... L. F. Henderson 503 1924-5-13
Rubiaceae GH: 02359400 Galium boreale Linnaeus USA: Oregon [data not captured] L. F. Henderson 906 of 1924 1924-6-5