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Botanical Studies Open Educational Resources and Data

2017

Vascular of Preston Peak, Siskiyou County

James P. Smith Jr Humboldt State University, [email protected]

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Part of the Botany Commons

Recommended Citation Smith, James P. Jr, "Vascular Plants of Preston Peak, Siskiyou County" (2017). Botanical Studies. 55. https://digitalcommons.humboldt.edu/botany_jps/55

This Flora of Northwest -Checklists of Local Sites is brought to you for free and open access by the Open Educational Resources and Data at Digital Commons @ Humboldt State University. It has been accepted for inclusion in Botanical Studies by an authorized administrator of Digital Commons @ Humboldt State University. For more information, please contact [email protected]. THE VASCULAR PLANTS OF PRESTON PEAK, SISKIYOU COUNTY, CALIFORNIA

James P. Smith, Jr. Professor Emeritus of Botany Department of Biological Sciences Humboldt State Universitty Arcata, California

6 April 2017

Preston Peak is located about 12.5 miles west-northwest FLOWERING PLANTS of the town of Happy Camp. At 7313 ft., it is an imposing feature of the Siskiyou Wilderness. The peak itself and surrounding watershed have been designated Aceraceae by the U. S. Forest Service as the “Preston Peak Acer glabrum var. glabrum Botanical and Geological Area.” It contains a diverse flora and is especially rich in conifer species. Berberidaceae Mahonia repens

FERNS Betulaceae Alnus viridis ssp. sinuata Dryopteridaceae Polystichum lemmonii Caprifoliaceae Polystichum lonchitis Linnaea borealis ssp. longiflora

Pteridaceae Caryophyllaceae Adiantum aleuticum Eremogone congesta var. congesta Aspidotis densa Minuartia nuttallii ssp. gregaria Cheilanthes gracillima Minuartia nuttallii var. gregaria Cryptogramma acrostichoides Minuartia nuttallii Silene grayi CONIFERS Celastraceae Parnassia fimbriata Cupressaceae Parnassia palustris Callitropsis nootkatensis Calocedrus decurrens Compositae () Chamaecyparis lawsoniana Achillea millefolium Chamaecyparis nootkatensis Anaphalis margaritacea Antennaria microphylla Pinaceae Antennaria racemosa Abies magnifica amplexicaulis Abies x shastensis Arnica cernua Picea breweriana Arnica cordifolia Pinus jeffreyi Arnica discoidea Pinus lambertiana Arnica lanceolata ssp. prima Pinus monticola Arnica viscosa Tsuga mertensiana Crepis pleurocarpa Ericameria nauseosa var. speciosa Taxaceae Erigeron cervinus Taxus brevifolia Erigeron foliosus var. confinis Hazardia whitneyi var. discoidea Helenium bigelovii Hieracium bolanderi Hieracium greenei

-1- Hieracium horridum Fagaceae Hieracium triste Quercus vacciniifolia Oreostemma alpigenum var. andersonii Quercus sadleriana Senecio triangularis Solidago multiradiata Gentianaceae Symphyotrichum spathulatum Gentiana calycosa

Convolvulaceae Gramineae (Poaceae) Cuscuta occidentalis Calamagrostis canadensis Cuscuta suksdorfii var. subpedicellata Calamagrostis koelerioides Cinna latifolia Cornaceae Danthonia californica Cornus nuttallii Deschampsia elongata Cornus sericea Elymus elymoides var. elymoides Elymus elymoides ssp. elymoides Crassulaceae Elymus glaucus ssp. glaucus Sedum obtusatum ssp. retusum Melica geyeri Sedum oregonense Muhlenbergia filiformis Poa pratensis Cruciferae (Brassicaceae) Arabis macdonaldiana Grossulariaceae Arabis platysperma var. howellii Ribes roezlii var. cruentum Arabis serpentinicola Ribes sanguineum var. sanguineum Boechera koehleri Draba carnosula Hydrophyllaceae Draba howellii Phacelia corymbosa Erysimum capitatum Phacelia leonis Noccaea fendleri ssp. glauca Streptanthus tortuosus var. tortuosus Juncaceae Thlaspi montanum var. montanum Juncus parryi Juncus ensifolius Cyperaceae Carex bolanderi Labiatae (Lamiaceae) Carex mertensii Monardella odoratissima ssp. pallida Carex microptera Stachys ajugoides var. rigida Carex multicaulis Carex multicostata Lauraceae Carex preslii Umbellularia californica Carex rossii Carex scopulorum var. bracteosa Leguminosae (Fabaceae) Carex spectabilis Lotus oblongifolius var. oblongifolius Lotus oblongifolius var. nevadensis Ericaceae Trifolium howellii Arctostaphylos nevadensis Trifolium longipes Arctostaphylos patula Cassiope mertensiana Liliaceae Cassiope mertensiana ssp. ciliolata Allium validum Chimaphila umbellata Allium falcifolium Gaultheria ovatifolia Ailium pardalinum ssp. vollmeri Kalmia polifolia Fritillaria glauca Orthilia secunda Lilium washingtonianum ssp. purpurascens Pterospora andromedea Stenanthium occidentale Pyrola dentata Streptopus amplexifolius Pyrola picta Triteleia crocea Sarcodes sanguinea Veratrum californicum var. californicum Vaccinium cespitosum Xerophyllum tenax Vaccinium membranaceum Vaccinium parvifolium Nymphaeaceae Nuphar polysepala

-2- Onagraceae Rubus leucodermis Chamerion angustifolium ssp. circumvagum Rubus parviflorus Chamerion latifolium Rubus ursinus Epilobium ciliatum ssp. glandulosum Sorbus californica Epilobium hallianum Spiraea splendens Epilobium siskiyouense Rubiaceae Orchidaceae Galium aparine Cypripedium californicum Galium glabrescens ssp. glabrescens Goodyera oblongifolia Platanthera dilatata var. leucostachys Sambucaceae Platanthera sparsiflora Sambucus nigra ssp. caerulea Platanthera stricta Spiranthes romanzoffiana Sarraceniaceae Darlingtonia californica Polemoniaceae Collomia tinctoria Saxifragaceae Gilia capillaris Boykinia major Gilia capitata ssp. capitata Heuchera merriamii Navarretia linearifolia ssp. linearifolia Saxifraga ferruginea Saxifraga howellii Polygonaceae Saxifragopsis fragarioides Eriogonum compositum var. compositum Eriogonum hirtellum Scrophulariaceae Eriogonum nudum var. nudum Castilleja applegatei Eriogonum ternatum Castilleja arachnoidea Eriogonum umbellatum Castilleja miniata Eriogonum umbellatum var. argus Castilleja schizotricha Polygonum alpinum † Pedicularis howellii Polygonum bistortoides Penstemon anguineus Polygonum minimum Penstemon davidsonii Penstemon deustus Portulacaceae Penstemon deustus var. deustus Cistanthe umbellata Penstemon newberryi var. berryi Lewisia cotyledon var. cotyledon Penstemon parvulus Lewisia leeana Penstemon rupicola Montia parvifolia Umbelliferae (Apiaceae) Primulaceae Angelica tomentosa Dodecatheon jeffreyi Lomatium macrocarpum

Ranunculaceae SOURCES Aquilegia formosa Anemone occidentalis Caltha leptosepala Clark, E. D. 1977. A floristic and ecological survey of the Preston Peak and Devil’s Punch Bowl Area [,] Siskiyou Rhamnaceae County, California. U. S. Forest Service Contract 39- Ceanothus cuneatus 3750. Ceanothus velutinus var. velutinus Frangula californica ssp. occidentalis Consortium of California Herbaria: accessed 26 March 2017 [my primary source] Rosaceae Amelanchier alnifolia Humboldt State University Herbarium Amelanchier utahensis Drymocallis rhomboidea U. S. Forest Service. Botanical areas. Klamath National Holodiscus discolor var. discolor Forest. Salmon/Scott River Ranger District. Luetkea pectinata Physocarpus capitatus Prunus emarginata Rosa gymnocarpa var. serpentina

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