Horse Mountain Botanical Area species list
Source: Humboldt State University checklist compiled from collections by
D.E. Anderson, B. Klipfel, T. Nelson, V. Rumble, J.O. Sawyer, and J. P. Smith
Revised December 11, 1994; additional species from CNPS fieldtrip, June 10, 1995

• Abies grandis x concolor (grand fir/white fir hyrid)
  
• Acer macrophyllum (bigleaf maple)
  
• Achillea millefolium (common yarrow)
  
• Achlys triphylla (vanilla leaf)
  
• Adiantum pedatum var. aleuticum (maidenhair fern)
  
• Allium falcifolium (coast flatstem onion)
  
• Allotropa virgata (candystick)
  
• Amelanchier alnifolia (western serviceberry)
  
• Anemone quinquefolia var. minor (five-leaved anemone)
  
• Angelica genulfexa (kneeling angelica)
  
• Antennaria suffrutescens (shrubby pussytoes)
  
• Apocynum pumilium var. pumilium (dwarf mountain hemp)
  
• Apocynum pumilium var. rhomboideum (rhomboid mountain hemp)
  
• Aquilegia formosa (crimson columbine)
  
• Aralia californica (California spikenard)
  
• Arabis sp (rock cress)
  
• Arbutus menziesii (madrone)
  
• Arctostaphylos nevadensis (pinemat manzanita)
  
• Arctostaphylos canescens ssp. sonomensis (hoary manzanita)
  
• Arenaria macrophylla (big-leaved sandwort)
  
• Arnica cernua (nodding arnica)
  
• Asarum caudatum (long-tailed wild-ginger)
  
• Asarum hartwegii (Hartweg's wild-ginger)
  
• Aspidotis densa (Indian's dream-fern)
  
• Athryium filix-femina (lady fern)
  
• Berberis aquifolium (tall Oregon-grape)
  
• Berberis nervosa (Oregon-grape)
  
• Boschniakia strobilacea (California groundcone)
  
• Calystegia sp (morning glory)
  
• Calochortus tolmiei (Tolmie's pussy ears)
  
• Calocedrus decurrens (incense cedar)
  
• Campanula prenanthoides (California harebell)
  
• Castilleja pruinosa (frosted paintbrush)
  
• Ceanothus cuneatus (buck brush)
  
• Ceanothus pumilius (dwarf ceanothus)
  
• Ceanothus velutinus (tobacco brush, snow brush)
  
• Chimaphila umbellata var. occidentalis (western prince's pine)
  
• Chrysolepis chrysophylla (giant chinquapin)
  
• Cirsium sp (thistle)
  
• Claytonia lanceolata (springbeauty)
  
• Claytonia saxosa? (rock springbeauty)
  
• Collinsia grandiflora (giant blue-eyed Mary)
  
• Collinsia parviflora (maiden blue-eyed Mary)
  
• Collinsia rattanii (sticky blue-eyed Mary)
  
• Collnsia sparsiflora var. brucae (spinster's blue-eyed Mary)
  
• Cornus nuttallii (mountain dogwood)
  
• Corylus cornuta var. californica (California hazel)
  
• Crepis pleurocarpa (naked-stemmed hawkweed)
  
• Cryptogramma acrostichoides (American parsley-fern)
  
• Cupressus lawsoniana (Port Orford-cedar)
  
• Disporum sp. (fairybells)
  
• Dodecatheon hendersonii (Henderson's shootingstar)
  
• Epilobium sp (willowherb)
  
• Eriogonum nudum (barestem eriogonum)
  
• Eriogonum umbellatum (sulpher flower)
  
• Eriopyllum lanatum var. lanceolatum (common woolly- sunflower)
  
• Erythronium californicum (California fawn lily)
  
• Festuca californica (California fescue)
  
• Festuca idahoensis (Idaho fescue)
  
• Festuca occidentalis (western fescue)
  
• Galium bolanderi (Bolander's bedstraw)
  
• Galium muricatum ()
  
• Garrya buxifolia (boxleaf silk tassel)
  
• Gaultheria shallon (salal)
  
• Heuchera micrantha var. pacifica (small-flowered heuchera)
  
• Hieracium albiflorum (white-flowered hawkweed)
  
• Holodiscus discolor (oceanspray)
  
• Hypericum perforatum var. scouleri (Scouler's Klamath weed)
  
• Iris tenuissima (long-tubed iris)
  
• Iris sp (iris)
  
• Lathyrus sp (wild pea)
  
• Lithocarpus densiflora (tanoak)
  
• Lomatium tracyi (Tracy's lomatium)
  
• Lomatium sp (lomatium, wild parsnip)
  
• Lotus crassifolius (broad-leaved lotus)
  
• Lotus humistratus (hill lotus)
  
• Lotus oblongifolius (narrow-leaved lotus)
  
• Lotus sp (lotus, deer-vetch)
  
• Lupinus albicaulis (pine lupine)
  
• Lupinus sp (lupine)
  
• Luzula sp (woodrush)
  
• Microsteris gracillis (slender false phlox)
  
• Mimulus cardinalis (crimson monkeyflower)
  
• Mimulus pulsiferae (candelabrum monkeyflower)
  
• Mimulus sp (monkeyflower)
  
• Monardella odoratissima (coyote mint)
  
• Montia perfoliata (miner's lettuce)
  
• Montia saxosa (rocky miner's lettuce)
  
• Penstemon laetus ssp. sagittatus (gay penstemon)
  
• Phacelia sp (phacelia)
  
• Phlox diffusa (spreading phlox)
  
• Pinus attenuata (knobcone pine)
  
• Pinus jeffreyi (Jeffrey pine)
  
• Pinus lambrertiana (sugar pine)
  
• Pinus monticola (western white pine)
  
• Platanthera sparsiflora (sparse-flowered bog-orchid)
  
• Poa sp (blue grass)
  
• Polygala cornuta (Sierra milkwort)
  
• Polypogon sp (beard grass)
  
• Polystichum munitum (sword fern)
  
• Pseudostellaria jamesiana ()
  
• Pseudotsuga menziesii (Douglas-fir)
  
• Pteridium aquilinum var. pubescens (western bracken fern)
  
• Pyrola picta ssp. dentata (toothed white-veined wintergreen)
  
• Pyrola picta ssp. picta (painted white-veined wintergreen)
  
• Quercus chrysolepis var. chrysolepis (golden canyon live oak)
  
• Quercus chrysolepis var. nana (dwarf canyon live oak)
  
• Quercus vaccinifolia (huckleberry oak)
  
• Ranunculus californicus (California buttercup)
  
• Rhamnus californica ssp. californica (California coffeeberry)
  
• Rhamnus californica ssp. occidentalis (western coffeeberry)
  
• Rhododendron occidentale (western azalea)
  
• Ribes sanguineum (red flowering currant)
  
• Ribes velutinum (velvet-stem gooseberry)
  
• Rosa sp (rose)
  
• Rubus parviflorus var. velutinus (velvet thimbleberry)
  
• Sedum laxum ssp flavidum (pale yellow stonecrop)
  
• Silene californica (California Indian pink)
  
• Smilacina racemosa var. amplexicaulis (western false Solomon's seal)
  
• Smilacina racemosa var. racemosa (fat false Solomon's seal)
  
• Spiraea densiflora (rosy spirea)
  
• Symphoricarpos mollis (creeping snowberry)
  
• Thlaspi californicum? (Kneeland Prairie penny-cress)
  
• Trientalis latifolia (broad-leaved starflower)
  
• Trifolium sp (clover)
  
• Trillium ovatum (Pacific trillium)
  
• Triteleia laxa var. tracyi (Tracy's Ithuriel's spear)
  
• Vaccinium parvifolium (red huckleberry)
  
• Vancouveria planipetala (redwood inside-out flower)
  
• Viola cuneata (wedge-leaved violet)
  
• Viola glabella (smooth yellow violet)
  
• Viola hallii (Hall's violet)
  
• Whipplea modesta (yerbe de selva)
  
• Wyethia angustifolia (narrow-leaved mule ears)
  
• Xerophyllum tenax (bear-grass)
  
• Zigadenus sp (death-camas)

California Native Plant Society - North Coast Chapter
P.O. Box 1067 Arcata, CA 95518-1067
updated March 2001