Humboldt State University Digital Commons @ Humboldt State University

Botanical Studies Open Educational Resources and Data

2018

Vascular of Cook and Green Pass, Siskiyou County

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

Follow this and additional works at: https://digitalcommons.humboldt.edu/botany_jps

Part of the Botany Commons

Recommended Citation Smith, James P. Jr, "Vascular Plants of Cook and Green Pass, Siskiyou County" (2018). Botanical Studies. 77. https://digitalcommons.humboldt.edu/botany_jps/77

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 COOK AND GREEN PASS, SISKIYOU COUNTY, CALIFORNIA

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

Third Edition • 1 May 2018

Cook and Green Pass is located near the border in Siskiyou County lemmonii • Lemmon’s or Shasta holly (41.942 N, 123.146 W; USGS Kangaroo Mountain Quadrangle). The pass Polystichum lonchitis • northern holly fern itself is at 4816 feet. Seiad Valley is probably the closest community. The Polystichum x scopulinum • western sword fern has designated about 700 acres of the region as the Cook and Green Botanical Area in recognition of its floristic richness. Equisetaceae — Horsetail or Scouring-Rush Family Here we find “... the largest single aggregation of native Equisetum hyemale • tall scouring-rush known to occur in one limited area in California” (Roof 1975). Pteridaceae — Brake Fern Family Adiiantum aleuticum • five-finger fern L Y C O P H Y T E S Aspidotis densa • Indian’s dream Cheilanthes gracillima • lace lip fern Isoëtaceae — Quillwort Family Pellaea mucronata ssp. mucronata • bird’s-foot fern Isoëtes echinospora • spiny-spored quillwort Isoëtes occidentalis • western quillwort C O N I F E R S

F E R N S — Cypress Family decurrens • incense-cedar Cystopteridaceae — Bladder Fern Family bakeri • Baker or Modoc cypress Cystopteris fragilis • brittle or fragile fern Juniperus communis var. jackii • running

Denstaedtiaceae — Bracken Fern Family Pinaceae — Pine Family Pteridium aquilinum var. pubescens • bracken fern Abies amabilis • Pacific silver fir Abies concolor var. lowiana • California white fir — Wood Fern Family Abies procera • Noble fir Polystichum imbricans ssp. curtum • narrow-leaved sword fern Picea breweriana • Brewer or weeping spruce Polystichum imbricans ssp. imbricans • narrow-leaved sword fern Pinus attenuata • knobcone pine

-1- Pinus lambertiana • sugar pine Campanulaceae — Bellflower Family Pseudotsuga menziesii • Douglas-fir Asyneuma prenanthoides • California harebell

Caprifoliaceae — Honeysuckle Family F L O W E R I N G P L A N T S Linnaea borealis var. longiflora • western or long-tubed twinflower Lonicera ciliosa • orange honeysuckle Aceraceae — Maple Family Symphoricarpos albus var. laevigatus • common snowberry Acer glabrum var. torreyi • Torrey’s or mountain maple Symphoricarpos mollis • spreading or creeping snowberry Acer macrophyllum • big-leaved or Oregon maple Caryophyllaceae — Carnation or Pink Family Amaryllidaceae — Amaryllis or Onion Family Arenaria congesta var. crassula • sandwort Allium acuminatum • Hooker’s or taper-tipped onion Arenaria congesta var. suffrutescens • suffrutescent sandwort Allium campanulatum • dusky or Sierra onion Cerastium fontanum ssp. vulgare • perennial mouse-ear chickweed Allium siskiyouense • Siskiyou onion Minuartia nuttallii ssp. gracilis • Nuttall’s sandwort Minuartia nuttallii ssp. gregaria • Nuttall’s sandwort Apocynaceae — Dogbane Family Moehringia macrophylla • large-leaved sandwort Apocynum androsaemifolium • mountain-hemp, spreading dogbane Scleranthus annuus ssp. annuus • knawel, German-knot-grass Silene campanulata ssp. glandulosa • mountain catchfly Aristolochiaceae — Birthwort Family Silene campanulata ssp. greenei • Greene’s catchfly Asarum caudatum • wild-ginger, long-tailed-ginger Silene grayi • Gray’s campion

Asparagaceae — Hyacinth Family Celastraceae — Spindle Family Dipterostemon capitatus • blue dicks Parnassia palustris • marsh grass-of-Parnassus Hastingsia alba • white rush-lily Paxistima myrsinites • Oregon boxwood Maianthemum racemosum ssp. amplexicaule • false lily-of-the-valley Triteleia crocea • yellow triteleia Compositae () — Sunflower or Aster Family Triteleia ixioides • pretty face Adenocaulon bicolor • trail plant Agoseris heterophyll • annual agoseris — Barberry Family Agoseris retrorsa • spear-leaved agoseris aquifolia • Oregon-grape howellii ssp. howellii • Howell’s pussy-toes Mahonia nervosa var. nervosa • Cascade barberry Antennaria racemosa • slender everlasting • Siskiyou or yellow inside-out Antennaria rosea ssp. rosea • rosy pussy-toes • northern vancouveria Arnica cernua • serpentine or nodding arnica Arnica discoidea • rayless arnica Betulaceae — Birch Family Arnica latifolia • mountain arnica Alnus incana ssp. tenuifolia • thin-leaved alder Balsamorhiza deltoidea • deltoid balsamroot Alnus rhombifolia • white or California alder Crepis pleurocarpa • naked-stemmed hawk’s-beard Alnus viridis var. sinuata • Sitka alder Heterotheca villosa var. minor • golden-aster Corylus cornuta ssp. californica • California hazelnut breweri var. breweri • Brewer’s fleabane Erigeron cervinus • Siskiyou daisy or fleabane Boraginaceae — Borage Family Erigeron glacialis ssp. glacialis • subalpine fleabane Cryptantha affinis • common cryptantha Erigeron inornatus var. inornatus • California rayless daisy Hackelia micrantha • Jessica’s stickseed Erigeron klamathensis • Klamath fleabane Erigeron petrophilus var. petrophilus • rock daisy

-2- Erigeron petrophilus var. viscidulus • rayless daisy Carex fracta • fragile-sheathed sedge Eriophyllum lanatum var. integrifolium • common woolly-sunflower Carex lenticularis var. impressa • tarn sedge Eriophyllum lanatum var. lanceolatum • common woolly-sunflower Carex luzulina • woodrush sedge Hazardia whitneyi var. discoidea • Whitney’s goldenbush Carex multicaulis • many-stemmed sedge Helenium bigelovii • Bigelow’s sneezeweed Carex multicostata • many-ribbed sedge Heterotheca villosa var. minor • golden-aster Carex scabriuscula • Siskiyou sedge Hieracium albiflorum • white-flowered hawkweed Carex straminiformis • Mount Shasta sedge Hieracium horridum • shaggy hawkweed Hieracium nudicaule • naked-stemmed hawkweed Ericaceae — Heath Family Pseudognaphalium thermale • northwestern rabbit-tobacco Arctostaphylos nevadensis • pinemat manzanita Senecio integerrimus var. major • big-headed groundsel Arctostaphylos patula • green-leaved manzanita Senecio triangularis • arrow-leaved butterweed Arctostaphylos viscida • white-leaved manzanita Solidago elongata • West Coast goldenrod Chimaphila menziesii • pipsissewa, little prince’s-pine Taraxacum erythrospermum • red-seeded dandelion Chimaphila umbellata • western prince’s-pine Gaultheria aff. humifusa • alpine wintergreen Convolvulaceae — Morning Glory or Bindweed Family Gaultheria ovatifolia • Oregon spicy wintergreen, oval-leaved gaultheria Cuscuta cephalanthi • buttonbush dodder Hemitomes congestum • cone flower, gnome plant Monotropa hypopithys • pinesap Cornaceae — Dogwood Family Orthilia secunda • one-sided wintergreen Cornus nuttallii • Nuttall’s, Pacific, or mountain dogwood Pleuricospora fimbriolata • fringed pine sap Cornus sericea ssp. sericea • red osier Pyrola crypta • cryptic wintergreen Pyrola dentata • toothed wintergreen — Stonecrop Family Pyrola picta var. picta • white-veined shinleaf obtusatum ssp. boreale • Sierra stonecrop Rhododendron macrophyllum • California rosebay Sedum lanceolatum var. lanceolatum • spear-leaved stonecrop Vaccinium caespitosum • dwarf huckleberry Sedum oblanceolatum • Applegate’s stonecrop Vaccinium membranaceum • blue or thin-leaved huckleberry Sedum obtusatum var. retusum • Sierra stonecrop Vaccinium scoparium • little-leaved huckleberry Sedum oregonense • cream stonecrop Sedum radiatum • Coast Range stonecrop Fagaceae — Beech or Oak Family Sedum spathulifolium • broad-leaved stonecrop Chrysolepis chrysophylla • golden chinquapin Sedum stenopetalum • worm-leaved stonecrop Quercus chrysolepis var. nana • dwarf canyon live oak Quercus garryana var. fruticosa • Brewer oak Cruciferae (Brassicaceae) — Mustard or Crucifer Family Quercus garryana var. garryana • Oregon white oak Arabis oregana • Oregon rock cress Quercus kelloggii • California black oak Arabis rollei • Rolle’s rock cress Quercus sadleriana • Sadler or deer oak Barbarea orthoceras • winter cress Quercus vacciniifolia • huckleberry oak Erysimum capitatum var. capitatum • Douglas’ or western wallflower Noccaea fendleri ssp. glauca • alpine penny cress Garryaceae — Silk-Tassel Family Streptanthus tortuosus • mountain jewel flower Garrya buxifolia • dwarf silk-tassel Garrya fremontii • Fremont’s silk-tassel Cyperaceae — Sedge Family Calliscirpus crinigera • fringed cotton-grass Carex aurea • golden-fruited sedge Gentianaceae — Gentian Family Carex bolanderi • Bolander’s sedge Gentiana calycosa • explorer’s gentian

-3- Gramineae (Poaceae) — Grass Family Phacelia heterophylla • varied-leaved phacelia Agrostis capillaris • colonial bent grass Phacelia mutabilis • changeable phacelia Agrostis idahoensis • bent grass Agrostis pallens • leafy bent grass Juncaceae — Rush Family Aira caryophyllea • silver hair grass Juncus ensifolius • dagger-leaved rush Bromus carinatus • California or large-flowered brome Juncus mexicanus • Mexican rush Calamagrostis koelerioides • tufted pine grass Juncus orthophyllus • straight-leaved rush Calamagrostis rubescens • pine or pine reed grass Juncus tenuis • yard rush Danthonia intermedia • timber or wild mountain oat grass Luzula comosa var. laxa • Pacific wood rush Danthonia unispicata • one-spiked oat grass Deschampsia caespitosa ssp. caespitosa • tufted or mountain hair grass Labiatae (Lamiaceae) — Mint Family Deschampsia caespitosa ssp. holciformis • Pacific hair grass Agastache urticifolia • nettle-leaved horse mint Deschampsia elongata • slender hair grass Monardella odoratissima ssp. glauca • mountain mint or balm Elymus elymoides • common squirrel tail Monardella purpurea • purple mountain mint Elymus glaucus • western wild-rye Prunella vulgaris var. lanceolata • self-heal Festuca californica var. californica • California fescue Scutellaria antirrhinoides • snapdragon skullcap Festuca idahoensis • Idaho fescue Stachys pilosa • prairie woundwort Festuca rubra • red fescue Stachys rigida • bugle hedge-nettle Festuca subulata • bearded or nodding fescue Glyceria elata • tall or weak manna grass Leguminosae (Fabaceae) — Legume, Bean, or Pulse Family Melica bulbosa • western onion grass Lathyrus lanszwertii var. tracyi • Tracy’s pea Melica harfordii • Harford’s melic Lotus oblongifolius var. oblongifolius • narrow-leaved bird’s-foot trefoil Melica subulata • onion grass Lupinus andersonii • Anderson’s lupine Poa pratensis ssp. pratensis • Kentucky blue grass Lupinus breweri • Brewer’s or mat lupine Poa pringlei • Pringle’s blue grass Lupinus lapidicola • Heller’s or Mount Eddy lupine Poa rhizomata • timber blue grass Lupinus sellulus var. artulus • Donner Lake lupine Poa secunda ssp. secunda • alkali or one-sided blue grass Lotus micranthus • short-flowered bird’s-foot trefoil Stipa nelsonii ssp. dorei • Dore’s or subalpine needle grass Trifolium eriocephalum • woolly-headed clover Stipa occidentalis • western needle grass Trifolium howellii • Howell’s or canyon clover Trifolium longipes var. shastense • Shasta clover Grossulariaceae — Gooseberry Family Trifolium pratense • red clover Ribes lacustre • swamp currant Ribes roezlii var. cruentum • Klamath gooseberry Liliaceae — Lily Family Ribes sanguineum • red-flowering currant Calochortus tolmiei • Tolmie’s star-tulip, pussy-ears Ribes viscosissimum • sticky-flowering or mountain currant Clintonia uniflora • bride’s bonnet Erythronium grandiflorum • glacier lily Hydrangeaceae — Hydrangea Family Fritillaria atropurpurea • purple fritillary Philalelphus lewisii • Lewis’ mock-orange Fritillaria recurva • scarlet fritillary Whipplea modesta • yerba de selva, modesty Lilium pardalinum ssp. pardalinum • leopard or tiger lily Lilium pardalinum ssp. wigginsii • Wiggins’ lily Hydrophyllaceae — Waterleaf Family Lilium washingtonianum var. purpurascens • purple-flowered Shasta lily Hydrophyllum occidentale • California or western waterleaf Prosartes hookeri • Hooker’s or hairy fairy bells Nemophila parviflora var. austiniae • woodland nemophila Streptopus amplexicaulis • twisted stalk Phacelia egena • Kaweah River phacelia

-4- — Mallow or Cotton Family Goodyera oblongifolia • rattlesnake-plantain asprella • dwarf checkerbloom Piperia unalascensis • alpine or northern piperia Sidalcea glaucescens • waxy checkerbloom Platanthera dilatata var. leucostachys • white-flowered bog orchid Sidalcea malvaeflora • dwarf checkerbloom Platanthera sparsiflora • sparse-flowered bog orchid Sidalcea oregana ssp. oregana • Oregon checkerbloom Papaveraceae — Poppy Family Melanthiaceae — Wake Robin Family Dicentra formosa • Pacific bleeding heart Stenanthium occidentale • western feather bells Dicentra pauciflora • few-flowered bleeding heart Trillium ovatum • western wake robin Trillium rivale • brook wake robin — Plantain or Plantago Family Veratrum californicum • false hellebore, corn-lily Plantago lanceolata • English plantain Xerophyllum tenax • bear-grass, Indian basket-grass — Family — Miner’s-Lettuce Family Collomia heterophylla • varied-leaved collomia Calyptridium monospermum • one-seeded pussy-paws Gilia capitata ssp. capitata • globe or blue-headed gilia Claytonia parviflora ssp. parviflora • stream bank spring beauty Leptosiphon bolanderi • Bolander’s-linanthus Claytonia perfoliata ssp. intermontana • Intermountain miner’s-lettuce Navarretia capillaris • miniature false gilia Claytonia sibirica • Siberian montia Phlox adsurgens • woodland phlox cotyledon var. cotyledon • Siskiyou lewisia Phlox diffusa • spreading phlox Lewisia cotyledon var. howellii • Howell’s lewisia Phlox hoodii ssp. canescens • carpet phlox Lewisia kelloggii ssp. hutchisonii • Hutchison’s lewisia carneum • royal sky pilot, great polemonium Lewisia leana • Lee’s or quill-leaved lewisia Lewisia triphylla • three-leaved lewisia Polygonaceae — Knotweed or Smartweed Family Montia diffusa • diffuse or branching miner’s-lettuce Eriogonum compositum var. compositum • large-leaved buckwheat Montia parvifolia • small-leaved miner’s-lettuce Eriogonum elatum var. elatum • tall or woolly buckwheat Eriogonum nudum var. nudum • naked-stemmed buckwheat Nymphaeaceae — Water-Lily Family Eriogonum nudum var. pubiflorum • Del Norte buckwheat Nuphar polysepala • yellow pond-lily, spadderdock Eriogonum ternatum • ternate or Waldo buckwheat Eriogonum umbellatum var. argus • sulfur-flowered buckwheat Onagraceae — Evening-Primrose Family Polygonum douglasii • Douglas’ knotweed Circaea alpina ssp. pacifica • enchanter’s-nightshade Rumex acetosella • sheep or red sorrel Clarkia rhomboidea • diamond clarkia Rumex salicifolius • willow-leaved dock Epilobium ciliatum ssp. glandulosum • fringed willow herb Epilobium minutum • minute willow herb Potamogetonaceae — Pondweed Family Gayophytum diffusum ssp. parviflorum • spreading ground smoke Potamogeton richardsonii • Richardson’s pondweed

Orchidaceae — Orchid Family Primulaceae — Primrose Family Calypso bulbosa var. occidentalis • calypso orchid Dodecatheon hendersonii • Henderson’s shooting star, sailor caps Cephalanthera austinae • phantom or snow orchid Trientalis latifolia • broad-leaved or Pacific star flower Corallorhiza maculata • spotted coral root Corallorhiza mertensiana • Merten’s or western coral root Ranunculaceae — Buttercup or Crowfoot Family Corallorhiza striat • striped coral root Aconitum columbianum var. viviparum • western monk’s-hood Cypripedium californicum • California lady’s-slipper Actaea rubra ssp. arguta • baneberry Cypripedium fasciculatum • clustered lady’s-slipper Anemone deltoidea • Columbia windflower

-5- Anemone drummondii var. drummondii • Drummond’s windflower Sambucaceae — Elderberry Family Anemone oregana var. oregana • Oregon windflower Sambucus nigra ssp. caerulea • blue elderberry Aquilegia formosa • crimson columbine Caltha leptosepala • marsh-marigold Sarraceniaceae — Pitcher Plant Family Delphinium decorum ssp. tracyi • Tracy’s larkspur Darlingtonia californica • cobra-lily, California pitcher plant Delphinium depauperatum • dwarf larkspur Ranunculus occidentalis var. occidentalis • western buttercup Saxifragaceae — Saxifrage Family Boykinia major • mountain boykinia Rhamnaceae — Buckthorn Family Heuchera micrantha • small-flowered or crevice alum root Ceanothus cuneatus var. cuneatus • buck brush Heuchera merriamii • Merriam’s alum root Ceanothus integerrimus • deer brush Lithophragma affine ssp. affine • woodland star Ceanothus prostratus var. prostratus • mahala or pine mat Lithophragma heterophyllum • hillside woodland star Ceanothus velutinus • tobacco brush Saxifraga integrifolia • Hooker’s or northwest saxifrage Frangula californica var. occidentalis • California coffee berry Tiarella trifoliata var. unifoliata • lace flower, sugar scoop Frangula purshiana var. purshiana • cascara, cascara sagrada Tolmiea menziesii • piggyback plant, youth-on-age

Rosaceae — Rose Family — Scroph or Snapdragon Family Amelanchier alnifolia var. semiintegrifolia • western service berry Boschniakia strobilacea • California ground cone Aruncus dioicus var. acuminatus • goat’s-beard pruinosa • frosted Indian paintbrush Cercocarpus betuloides var. b. • birch-leaved mountain-mahogany Castilleja schizotricha • split-haired Indian paintbursh Drymocallis glandulosa • wood beauty Collinsia linearis • Chinese houses Drymocallis rhomboidea • Siskiyou or globose wood beauty Collinsia parviflora • small-flowered blue-eyed Mary Holodiscus discolor • ocean spray, cream bush Collinsia rattanii ssp. rattanii • Rattan’s blue-eyed Mary Physocarpus capitatus • Pacific or western nine-bark Keckiella lemmonii • Lemmon’s bush- Potentilla drummondii • Drummond’s or mountain cinquefoil Mimulus guttatus • seep monkey flower Prunus emarginata • bitter cherry Mimulus nanus var. nanus • dwarf purple monkey flower Prunus virginiana var. demissa • western choke cherry Mimulus primuloides ssp. linearifolius • linear-leaved monkey flower Rosa gymnocarpa • wood rose Nothochelone nemorosa • woodland beard-tongue Rosa pisocarpa ssp. pisocarpa • wood rose ssp. copelandii • Copeland’s owl’s-clover Rubus lasiococcus • dwarf bramble Orthocarpus cuspidatus ssp. cuspidatus • Siskiyou Mtns. owl’s-clover Rubus parviflorus • western thimble berry Pedicularis howellii • Howell’s lousewort Rubus ursinus • Pacific or California blackberry Pedicularis racemosa • leafy or sickle-topped lousewort Sorbus scopulina • Rocky Mountain or Cascade mountain-ash Penstemon anguineus • Siskiyou penstemon Spiraea splendens • rose-colored medow-sweet, mountain spirea Penstemon azureus var. azureus • azure penstemon Penstemon deustus • hot rock penstemon Rubiaceae — Madder Family Penstemon heterophyllus • penstemon Galium aparine • bedstraw, goose-grass, cleavers Penstemon laetus var. sagittatus • mountain blue penstemon Galium glabrescens ssp. glabrescens • Castle Lake bedstraw Penstemon newberryi var. berryi • Berry’s penstemon Galium triflorum • fragrant or sweet-scented bedstraw Penstemon parvulus • small azure penstemon Kelloggia galioides • milky kelloggia Penstemon rupicola • rock penstemon Synthyris reniformis • snow queen Salicaceae — Willow Family Tonella tenella • small-flowered tonella Populus trichocarpa • black cottonwood Salix scouleriana • Scouler’s willow Solanaceae — Nightshade Family

-6- Solanum parishii • Parish’s nightshade Solanum umbelliferum • blue witch, blue nightshade

Tofieldiaceae — False Asphodel Family Triantha occidentalis ssp. occidentalis • sticky false asphodel

Umbelliferae (Apiaceae) — or Carrot Family Ligusticum californicum • California ligusticum Ligusticum grayi • Gray’s ligusticum, sheep-lovage Lomatium nudicaule • naked-stemmed lomatium, pestle-parsnip Sanicula graveolens • Sierra sanicle

Valerianaceae — Valerian Family Plectritis macrocera • sea blush

Viscaceae — Mistletoe Family Arceuthobium campylopodum • western dwarf mistletoe Arceuthobium douglasii • Douglas-fir dwarf mistletoe

SOURCES

CNPS Field Trip to Cook & Green Pass, 2 July 1978

Consortium of California Herbaria

Roof, J. B. 1975. Floral watch on Siskiyou County’s Cook and Green Pass. The Four Seasons 5(1): 16-23.

Humboldt State University

-7-