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- Rudbeckia laciniata (2 revisions)
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- Carex pellita (2 revisions)
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- Main Page (2 revisions)
- Woodsia obtusa subsp. obtusa (2 revisions)
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- Castilleja pallida (2 revisions)
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- Misopates orontium (1 revision)
- Packera pseudaurea var. flavula (1 revision)
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- Antennaria monocephala subsp. monocephala (1 revision)
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- Goodyera pubescens (1 revision)
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- Chenopodium polyspermum var. polyspermum (1 revision)
- Rudbeckia fulgida var. spathulata (1 revision)
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- Hordeum brachyantherum subsp. brachyantherum (1 revision)
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- Oenothera hartwegii subsp. hartwegii (1 revision)
- Gratiola amphiantha (1 revision)
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- Iris (1 revision)
- Fritillaria camschatcensis (1 revision)
- Gouania (1 revision)
- Hypericum kalmianum (1 revision)
- Quercus toumeyi (1 revision)
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- Setaria magna (1 revision)
- Heterotheca villosa var. pedunculata (1 revision)
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- Carya texana (1 revision)
- Chorizanthe polygonoides var. longispina (1 revision)
- Castilleja affinis var. neglecta (1 revision)
- Carex sect. Mitratae (1 revision)
- Prescottia (1 revision)
- Prunus tomentosa (1 revision)
- Penstemon radicosus (1 revision)
- Potentilla sect. Potentilla (1 revision)
- Cirsium horridulum var. vittatum (1 revision)
- Aloina aloides var. ambigua (1 revision)
- Polygala leptostachys (1 revision)
- Salix rotundifolia var. dodgeana (1 revision)
- Descurainia incisa subsp. incisa (1 revision)
- Polygonella polygama (1 revision)
- Portulaca (1 revision)
- Distribution Abbreviations (1 revision)
- Aronia arbutifolia (1 revision)
- Nuphar microphylla (1 revision)
- Mnium blyttii (1 revision)
- Arecaceae (tribe Areceae) subtribe Ptychospermatinae (1 revision)
- Arctostaphylos nummularia subsp. mendocinoensis (1 revision)
- Tragus berteronianus (1 revision)
- Telesonix (1 revision)
- Ribes acerifolium (1 revision)
- Picramniaceae Illustrations (1 revision)
- Aristida longespica var. geniculata (1 revision)
- Arceuthobium campylopodum subsp. laricis (1 revision)
- Echeveria strictiflora (1 revision)
- Rhinanthus (1 revision)
- Potentilla sect. Biflorae (1 revision)
- Pyrrhopappus (1 revision)
- Cuphea (1 revision)
- Amanda Humphrey (1 revision)
- Timmia norvegica var. norvegica (1 revision)
- Canella (1 revision)
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- Euphorbia austrotexana (1 revision)
- Poa annua (1 revision)
- Asplenium exiguum (1 revision)
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- Tetragonia (1 revision)
- Draba sibirica (1 revision)
- Delphinium bicolor subsp. calcicola (1 revision)
- Euthamia gymnospermoides (1 revision)
- Packera dimorphophylla (1 revision)
- Amphipappus (1 revision)
- Eriogonum ephedroides (1 revision)
- Buxbaumia minakatae (1 revision)
- Holosteum umbellatum subsp. umbellatum (1 revision)
- Mielichhoferia shevockii (1 revision)
- Barkleyanthus (1 revision)
- Carex sect. Porocystis (1 revision)
- Symplocos tinctoria (1 revision)
- Homalothecium nuttallii (1 revision)
- Opuntia engelmannii var. engelmannii (1 revision)
- Douglasia arctica (1 revision)
- Cosmos bipinnatus (1 revision)
- Psidium cattleyanum (1 revision)
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- Purshia tridentata var. glandulosa (1 revision)
- Habenaria distans (1 revision)
- Erigeron eximius (1 revision)
- Brickellia lemmonii var. conduplicata (1 revision)
- Crassula drummondii (1 revision)
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- Arundinaria tecta (1 revision)
- Potamogeton natans (1 revision)
- Brachythecium erythrorrhizon var. alpinum (1 revision)
- Triteleia ixioides subsp. unifolia (1 revision)
- Ranunculus allenii (1 revision)
- Echinochloa crus-pavonis (1 revision)
- Cotoneaster vestitus (1 revision)
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- Sclerolepis uniflora (1 revision)
- Eleocharis radicans (1 revision)
- Suaeda maritima (1 revision)
- Cotoneaster nitens (1 revision)
- Saxifraga (1 revision)
- Eschscholzia ramosa (1 revision)
- Carex sect. Albae (1 revision)
- Juncus pervetus (1 revision)
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- Symphyotrichum grandiflorum (1 revision)
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- Rorippa palustris subsp. palustris (1 revision)
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- Habranthus robustus (1 revision)
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- Rosulabryum andersonii (1 revision)
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- Smelowskia (1 revision)
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- Bryoxiphiaceae Illustrations (1 revision)
- Funaria hygrometrica var. hygrometrica (1 revision)
- Hippophaë rhamnoides (1 revision)
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- Boechera dispar (1 revision)
- Castilleja tomentosa (1 revision)
- Chelone (1 revision)
- Volume 25 (1 revision)
- Hypnum cupressiforme var. subjulaceum (1 revision)
- Deinandra floribunda (1 revision)
- Bryophyllum fedtschenkoi (1 revision)
- Arctous rubra (1 revision)
- Ribes niveum (1 revision)
- Malacomeles (1 revision)
- Campylophyllum hispidulum (1 revision)
- Heuchera abramsii (1 revision)
- Coscinodon cribrosus (1 revision)
- Crataegus dispar (1 revision)
- Atriplex serenana var. davidsonii (1 revision)
- Eriophorum tenellum (1 revision)
- Ditrichum heteromallum (1 revision)
- Platanthera psycodes (1 revision)
- Potentilla nana (1 revision)
- Arctostaphylos crustacea subsp. insulicola (1 revision)
- Timmiella crassinervis (1 revision)
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- Chylismia scapoidea subsp. brachycarpa (1 revision)
- Brassicaceae tribe Hesperideae (1 revision)
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- Brassicaceae tribe Descurainieae (1 revision)
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- Paspalidium (1 revision)
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- Bothriochloa bladhii (1 revision)
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- Dieteria asteroides var. asteroides (1 revision)
- Krapovickasia physaloides (1 revision)
- Tithonia rotundifolia (1 revision)
- Carex rufina (1 revision)
- Timmia sibirica (1 revision)
- Aristida dichotoma (1 revision)
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- Rhynchospora microcephala (1 revision)
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- Eriogonum atrorubens (1 revision)
- Hieracium argutum (1 revision)
- Goodyera oblongifolia (1 revision)
- Yucca treculeana (1 revision)
- Lilium parryi (1 revision)
- Drymaria leptophylla (1 revision)
- Arctostaphylos tomentosa subsp. bracteosa (1 revision)
- Polygonum heterosepalum (1 revision)
- Penstemon ellipticus (1 revision)
- Trisetum interruptum (1 revision)
- Pilotrichaceae Illustrations (1 revision)
- Bigelowia nuttallii (1 revision)
- Polytrichastrum sexangulare var. sexangulare (1 revision)
- Eriogonum lachnogynum var. lachnogynum (1 revision)
- Sphagnum tenellum (1 revision)
- Stellaria longipes subsp. longipes (1 revision)
- Draba aurea (1 revision)
- Garryaceae Illustrations (1 revision)
- Rudbeckia laciniata var. humilis (1 revision)
- Dieteria canescens var. glabra (1 revision)
- Sporobolus coahuilensis (1 revision)
- Arctostaphylos stanfordiana (1 revision)
- Pleuridium acuminatum (1 revision)
- Silene parryi (1 revision)
- Erigeron sivinskii (1 revision)
- Centaurea diluta (1 revision)
- Townsendia incana (1 revision)
- Boechera serotina (1 revision)
- Sciuro-hypnum latifolium (1 revision)
- Delphinium bicolor subsp. bicolor (1 revision)
- Bryum chryseum (1 revision)
- Veronica dillenii (1 revision)
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- Perityle gilensis var. gilensis (1 revision)
- Hemitomes congestum (1 revision)
- Dimorphotheca sinuata (1 revision)
- Amaranthus viridis (1 revision)
- Ribes marshallii (1 revision)
- Sarraceniaceae (1 revision)
- Eriogonum longifolium var. gnaphalifolium (1 revision)
- Zephyranthes pulchella (1 revision)
- Atriplex gardneri var. falcata (1 revision)
- Androsace occidentalis (1 revision)
- Schistidium confertum (1 revision)
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- Eriogonum umbellatum var. porteri (1 revision)
- Nopalea cochenillifera (1 revision)
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- Hesperevax acaulis var. acaulis (1 revision)
- Leucospora (1 revision)
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- Eucephalus ledophyllus var. covillei (1 revision)
- Isocarpha oppositifolia var. achyranthes (1 revision)
- Erythronium revolutum (1 revision)
- Adenocaulon (1 revision)
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- Sideroxylon lycioides (1 revision)
- Trisetum canescens (1 revision)
- Ranunculus californicus var. californicus (1 revision)