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Audio Tours of Mount Diablo
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The tours feature lively interviews and music with the rush of wind and the chirps, howls, and growls of wildlife, all downloadable to an audio video media player.
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Plants of the Summit and Fire Interpretive Trail

by K. Hintsa

Wood Fern Family (Dryopteridaceae)
Brittle or Bladder Fern Cystopteris fragilis
Polypody Family (Polypodiaceae)
California Polypody Polypodium calirhiza = P. vulgare
Brake Family (Pteridaceae)
Coville Lip-Fern
Bird's Foot-Fern
Goldenback Fern
Cheilanthes covillei
Pellaea mucronata
Pentagramma triangularis = Pityrogramma t.
Cypress Family (Cupressaceae)
California Juniper Juniperus californica
Pine Family (Pinaceae)
Digger, Gray or Foothill Pine Pinus sabiniana
Lily Family (Liliaceae)
Hooker's Onion
Sickle-leaved or Coast Flatstem Onion
Mount Diablo Fairy Lantern
Allium acuminatum
Allium falcifolium
Calochortus pulchellus
Butterfly Tulip, Square or White Mariposa Tulip Calochortus venustus
Soap Root or Wavy-leaf Soap Plant
Blue Dicks
Chlorogalum pomeridianum
Dichelostemma capitatum = Brodiaea capitata
Checker Lily or Mission Bells
Star Zygadene or Fremont's Camas
Fritillaria affinis = F. lanceolata
Zigadenus fremontii = Zygadenus f.
Sumac or Cashew Family (Anacardiaceae)
Poison Oak or Western Poison Oak Toxicodendron diversilobum = Rhus diversiloba
Carrot Family (Apiaceae)
Bur Chervil
Sheep Parsnip or Giant Seeded Lomatium
Gamble Weed or Pacific Snakeroot
Devil's or Rock Sanicle
Tuberous Sanicle or Turkey Pea
Hartweg's Tauschia
Anthriscus caucalis = A. vulgaris
Lomatium macrocarpum
Sanicula crassicaulis
Sanicula saxatilis
Sanicula tuberosa
Tauschia hartwegii
Sunflower Family (Asteraceae)
Yarrow or Common Yarrow
Spear-leaved Agoseris
Coast Arnica
Yellow Star Thistle
Pineapple Weed
Achillea millefolium
Agoseris retrorsa
Arnica discoidea
Centaurea solstitialis
Chamomilla suaveolens = Matricaria matricorioides
Cobweb or Western Thistle
Shrubby Yellow Aster or Narrowleaf or Goldenbush
Cirsium occidentale
Ericameria linearifolia = Stenotopsis linearfolius
Rayless Fleabane or Rock Daisy
Woolly Sunflower or Oregon Sunshine
California Cotton Rose or Fluffweed
Erigeron petrophilus = E. miser
Eriophyllum lanatum
Filago californica
Mt. Diablo Sunflower or Helianthella
Slender Madia or Gum-weed
Common Madia
California Butterweed
Common or Wood Groundsel
(no common name)
Gray or Woolly Mule-Ears
Helianthella castanea
Madia gracilis
Madia elegans
Senecio aronicoides
Senecio vulgaris
Uropappus sp.
Wyethia helenioides
Borage Family (Boraginaceae)
Grand Hounds-Tongue
Cryptantha
Cynoglossum grande
Cryptantha sp.
Mustard Family (Brassicaceae)
Brewer Rock Cress
Toothwort or Milk-Maids
Douglas's Wallflower or Western Wall Flower
Arabis breweri
Cardamine californica = Dentaria californica
Erysimum capitatum = E. asperum
Mt. Diablo Jewelflower or Hairy Twisted Flower Streptanthus hispidus
Black Mustard Brassica nigra
Shepherd's Purse Capsella bursa-pastoris
Bell flower Family (Campanulaceae)
Chaparral Harebell or Rattan Campanula Campanula exigua
Honeysuckle Family (Caprifoliaceae)
Blue Elderberry Sambucus mexicana = S. caerulea
Pink Family (Caryophyllaceae)
Douglas Sandwort
Largeleaf Sandwort
Minuartia douglasii = Arenaria d.
Moehringia macrophylla = Arenaria m
Morning-Glory Fam. (Convolvulaceae)
Sierra or Woolly Morning-Glory Calystegia malacophylla = Convolvulus malacophyllus
Stonecrop Family (Crassulaceae)
Rock Lettuce or Canyon Dudleya Dudleya cymosa = Echeveria laxa
Dodder Family (Cuscutaceae)
Common Dodder Cuscuta subinclusa
Legume Family (Fabaceae)
Silver Lupine
Colchita or Hill Lotus
California Psoralea or Indian Breadroot
Lupinus albifrons
Lotus humistratus
Pediomelum californicum = Psoralea californica
Tomcat Clover
Buck Lotus
California or Calf Lotus
Woodland or Hillside Pea
Miniature or Dove Lupine
(no common name)
Trifolium willdenovii = T. tridentatum
Lotus crassifolius
Lotus wrangelianus = L. subpinnatus
Lathyrus vestitus = L. bolanderi
Lupinus bicolor
Trifolium sp.
Oak Family (Fagaceae)
Maul or Canyon Live Oak
Interior Live Oak
Quercus chrysolepis
Quercus wislizenii
Silk Tassel Family (Garryaceae)
Bear Brush Garrya fremontii
Geranium Family (Geraniaceae)
Redstem Filaree or Redstem Storksbill Erodium cicutarium
Gooseberry Family (Grossulariaceae)
Gooseberry
California Black Currant or Chaparral Currant
Ribes sp.
Ribes malvaceum
Waterleaf Family (Hydrophyllaceae)
Whispering Bells
Yerba Santa or California Yerba Santa
Emmenanthe penduliflora
Eriodictyon californicum
California or Western Waterleaf, or Squaw Lettuce Hydrophyllum occidentale
Vari-leaf or White Nemophila
Brewer Phacelia
Common or Fern Phacelia
Rock Phacelia
Bristly Phacelia
Mt. Diablo or Diablo Phacelia
Nemophila heterophylla
Phacelia breweri
Phacelia distans
Phacelia imbricata = P. californica
Phacelia nemoralis
Phacelia phacelioides
Mint Family (Lamiaceae)
Pitcher Sage
Coyote Mint
Chia
Blue or Danny's Skullcap
Lepechinia calycina = Sphacele c.
Monardella villosa
Salvia columbariae
Scutellaria tuberosa
Laurel Family (Lauraceae)
California Bay or Laurel, or Pepperwood Umbellularia californica
Loasa Family (Loasaceae)
Nada or Nevada Stickleaf
Golden Blazing-star or San Luis Stick-leaf
Mentzelia dispersa
Mentzelia micrantha
Evening Primrose Family (Onagraceae)
Chaparral or Small Sun Cup, Camissonia intermedia
or Miniature Evening Primrose = Oenothera micrantha
Lovely Clarkia or Red Ribbons
Four-Spot or Winecup Clarkia
Zauschneria or California Fuchsia
Chaparral Cottonweed/Threadstem Fireweed
Elegant or Canyon Clarkia
Clarkia concinna
Clarkia purpurea = Godetia quadrivulnera
Epilobium canum = Zauschneria californica
Epilobium minutum
Clarkia unguiculata = C. elegans
Broom-Rape Family (Orobanchaceae)
Tuberous or Chaparral Broom-Rape
Common or Clustered Broom-Rape
(No common name)
Orobanche bulbosa = O. tuberosa
Orobanche fasciculata
Orobanche vallicola
Poppy Family (Papaveraceae)
Wind Poppy Stylomecon heterophylla = Papaver heterophyllum
Buckwheat Family (Polygonaceae)
Clustered Spineflower or Membranous Chorizanthe Chorizanthe membranaceae
Tibingua or Naked Eriogonum
Sulphur Flower or Sulphur Eriogonum
(no common name)
Common Knotweed or Wire Grass
Eriogonum nudum
Eriogonum umbellatum
Pterostegia drymarioides
Polygonum arenastrum = P. aviculare
Violet Family (Violaceae)
Mountain Violet Viola purpurea
Purslane Family (Portulacaceae)
Rock Montia
Miner's Lettuce
Bitter Root
Claytonia gypsophiloides = Montia g.
Claytonia perfoliata = Montia p.
Lewisia rediviva
Primrose Family (Primulaceae)
Shooting Star or Henderson's Shooting Star Dodecatheon hendersonii
Buttercup Family (Ranunculaceae)
Pipestems or Chaparral
California Larkspur
Red or Canyon Larkspur
Spreading Larkspur
Clematis Clematis lasiantha
Delphinium californicum
Delphinium nudicaule
Delphinium patens
Buckthorn Family (Rhamnaceae)
Buck Brush
Coffeeberry
Ceanothus cuneatus
Rhamnus californica
Rose Family (Rosaceae)
Chamise
Birch-leaf or Western Mountain Mahogany
Cream Bush or Ocean Spray
Adenostoma fasciculatum
Cercocarpus betuloides
Holodiscus discolor
Madder Family (Rubiaceae)
Needle or Phlox-leaved Bedstraw
Nuttall Galium
Goosegrass
Galium andrewsii
Galium nuttallii
Galium aparine
Saxifrage Family (Saxifragaceae)
Woodland Star Lithophragma affine = L. affini
Figwort Family (Scrophulariaceae)
Snapdragon
Chinese Houses
Few-flowered Collinsia
Antirrhinum vexillo-calyculatum
Collinsia heterophylla = C. bicolor
Collinsia sparsiflora
or Spinster's Blue-eyed Mary
Iodine Collinsia or Sticky Chinese Houses Collinsia tinctoria
Rock Penstemon
Indian Warrior
Chaparral or Foothill Penstemon
Smallflower Tonella
California Figwort or Beeplant
Keckiella corymbasa = P. corymbosus
Pedicularis densiflora
Penstemon heterophyllus
Tonella tenella
Scrophularia californica
Nightshade Family (Solanaceae)
Blue Witch or Nightshade Solanum umbelliferum
Valerian Family (Valerianaceae)
Rotund or Short-spurred Plectritis Plectritis macrocera
Mistletoe Family (Vyiscaceae)
Pine Mistletoe or Foothill-Pine Dwarf Mistletoe Arceuthobium occidentale = A. campylopodum
Phlox Family (Polemoniaceae)
Purple or Blue False Gilia
Honeyscent Navarretia
Allophyllum gilioides = Gilia gilioides
Navarretia mellita