EAST SECTION SAN GERONIMO
RIDGE COUNTY OPEN SPACE
BOTANICAL NAME
COMMON NAME NOTES
ANACARDIACEAE (SUMAC OR
CASHEW FAMILY)
Toxicodendron (Rhus) diversilobum
Poison
Oak
APIACEAE/UMBELLIFERAE
(CARROT FAMILY)
Angelica hendersonii
Daucus pusillus Rattlesnake
Weed
Heracleum lanatum (H. maximum)
Cow
Parsnip
Lomatium dasycarpum ssp. dasycarpum (L.d.) Hog
Fennel
Lomatium utriculatum Yellow
Hog Fennel
Osmorhiza chilensis Sweet
Cicely
Perideridia kelloggii Kellogg's
Yampah
Sanicula bipinnatifida Purple
Sanicle
Sanicula crassicaulis Pacific
Sanicle
Sanicula laciniata Coast
Sanicle
Sanicula tuberosa Turkey
Pea
Scandix pecten-veneris Shepherd's
Needle *
Tauschia kelloggii Yellow
Parsley
ARALIACEAE
(GINSENG FAMILY)
Hedera helix English
Ivy *
ASTERACEAE/COMPOSITAE
(SUNFLOWER/COMPOSITE FAMILY)
Achillea millefolium (A. borealis)
Yarrow
Agoseris grandiflora (A. plebia)
Mountain
Dandelion
Agoseris heterophylla Annual
Dandelion
Arnica discoidea
Artemisia douglasiana Mugwort
Aster radulinus Broad-leaf
Aster
Baccharis pilularis (incl var. consanguinea) Coyote
Brush
Calycadenia multiglandulosa (incl var. cephalotes) Rosin Weed
Carduus pycnocephalus Italian
Thistle *
Centaurea solstitialis Yellow
Star-Thistle *
Chamomilla suaveolens (Matricaria matricarioides) Pineapple Weed *?
Cirsium vulgare Bull
Thistle *
Ericameria (Haplopappus) arborescens Golden-Fleece
Erigeron reductus var. angustatus (E. inornatus
var. a.) Pine
Erigeron
Eriophyllum confertiflorum var. confertiflorum (E.c.) Golden-Yarrow
Eriophyllum lanatum var. arachnoideum Woolly
Sunflower
Filago gallica *
Gnaphalium purpureum Cudweed
Hemizonia congesta ssp. congesta (incl H.
lutescens & Hayfield
Tarweed
H. multicaulis ssp m.
& ssp. vernalis)
Hesperevax sparsiflora var.
sparsiflora (Evax s.)
Heterotheca
sessiliflora ssp. bolanderi (Chrysopsis villosa Golden Aster
var.
b.)
Hieracium albiflorum Hawkweed
Hypochaeris (Hypochoeris) glabra
Smooth
Cat's-ear *
Hypochaeris (Hypochoeris) radicata
Hairy
Cat's-ear *
Lasthenia californica (L. chrysostoma & L. hirsutula) Gold Fields
Layia gaillardioides
Madia exigua Threadstem
Madia
Madia gracilis Slender
Tarweed
Madia madioides Woodland
Madia
Madia sp.
Tarweed
Micropus californicus var. californicus (M.c.)
Cotton
Top
Microseris douglasii ssp. douglasii (M.d.) Douglas'
Dandelion
Psilocarphus tenellus var. tenellus (P.t.) Woolly
Marbles
Rigiopappus leptocladus
Senecio aronicoides Butterweed
Senecio vulgaris Common
Groundsel *
Soliva sessilis (incl S. daucifolia & S. pterosperma) *
Sonchus asper Sow
Thistle *
Sonchus oleraceus Sow
Thistle *
?Stebbinsoseris decipiens = Microseris
bigelovii x
LIST 1
Uroppapus lindleyi (M.
decipiens)
Taraxacum officinale (incl T. laevigatum) Dandelion *
Uropappus lindleyi (Microseris linearifolia & M. lindleyi) Silver Puffs
Wyethia angustifolia Narrow-leaf
Mule Ears
Wyethia glabra Mule
Ears
BETULACEAE
(BIRCH FAMILY)
Corylus cornuta var. californica (C. californica) California
Hazel
BLECHNACEAE
(DEER FERN FAMILY)
Woodwardia fimbriata Western
Chain Fern
BORAGINACEAE
(BORAGE FAMILY)
Amsinckia menziesii var. intermedia (A.i.) Fiddleneck
Cynoglossum grande Hound's
Tongue
Myosotis latifolia (M. sylvatica)
Forget-me-not *
Plagiobothrys nothofulvus Popcorn
Flower
BRASSICACEAE/CRUCIFERAE
(MUSTARD FAMILY)
Cardamine californica (Dentaria integrifolia) Milk
Maids
Lunaria annua Moonwort *
Streptanthus batrachopus Tamalpais
Jewelflower LIST 1
Thysanocarpus curvipes (incl var. elegans) Fringe
Pod
CAPRIFOLIACEAE (HONEYSUCKLE
FAMILY)
Lonicera hispidula var. vacillans
California
Honeysuckle
Sambucus mexicana (S. coerulea)
Blue
Elderberry
Symphoricarpos albus var. laevigatus (S. rivularis) Snowberry
Symphoricarpos mollis Snowberry
CARYOPHYLLACEAE
(PINK FAMILY)
Cerastium glomeratum (C. viscosum)
Mouse-ear
Chickweed *
Minuartia (Arenaria) douglasii
Sandwort
Silene californica Indian
Pink
Spergularia rubra Sand
Spurrey *
CONVOLVULACEAE
(MORNING-GLORY FAMILY)
Calystegia collina ssp. collina (Convolvulus malacophyllus) Morning-glory
Calystegia subacaulis ssp. subacaulis
(Convolvulus s.) Morning-glory
Convolvulus arvensis Bindweed *
CUCURBITACEAE
(GOURD FAMILY)
Marah oreganus Coast
Man-root
CUPRESSACEAE
(CYPRESS FAMILY)
Cupressus sargentii Sargent
Cypress T.L.
CYPERACEAE
(SEDGE FAMILY)
Carex sp.
Sedge
Carex utriculata (C. rostrata)
Bettie
Sedge
Cyperus eragrostis Umbrella
Sage
DENNSTAEDTIACEAE
(BRACKEN FAMILY)
Pteridium aquilinum var. pubescens
Bracken
DIPSACACEAE
(TEASEL FAMILY)
Dipsacus sativus Fuller's
Teasel *
DRYOPTERIDACEAE
(WOOD FERN FAMILY)
Athyrium filix-femina var. cyclosorum (A.f. var. sitchense) Coastal Lady Fern
Dryopteris arguta Coastal
Wood Fern
EQUISETACEAE
(HORSETAIL FAMILY)
Equisetum telmateia ssp. braunii
Giant
Horsetail
ERICACEAE
(HEATH FAMILY)
Arbutus menziesii Madrone
Arctostaphylos glandulosa ssp. glandulosa (A.g.
incl Eastwood
Manzanita T.L.
A. cushingiana)
Arctostaphylos hookeri ssp. montana
(A.m.) Mt.
Tamalpais Manzanita LIST 1
FABACEAE/LEGUMINOSAE (LEGUME
FAMILY)
Astragalus gambelianus (A. gambellianus) (incl var. elmeri) Loco Weed
Lathyrus vestitus var. vestitus (incl ssp. puberulus & Hillside Pea
ssp.
bolanderi, in part)
Lotus humistratus Colchita
Lotus micranthus Hill
Lotus
Lotus purshianus var. purshianus (L.p.) Spanish
Clover
Lotus wrangelianus (L. subpinnatus)
Calf
Lotus
Lupinus bicolor (incl L. micranthus & polycarpus) Dove Lupine
Medicago polymorpha (incl var. brevispina & M. hispida incl Bur Clover *
vars.
confinis & apiculata)
Pickeringia montana var. montana
(P.m.) Chaparral
Pea
Thermopsis macrophylla var. macrophylla (T.m.) False Lupine
Trifolium albopurpureum var. albopurpureum (T.a.) Indian Clover
Trifolium bifidum var. bifidum (T.b. in part) Notched-leaf
Clover
Trifolium depauperatum var. amplectens (T. a.)
Balloon
Clover
Trifolium depauperatum var. depauperatum (T.d.)
Clover
Trifolium dubium Shamrock *
?Trifolium gracilentum var.
gracilentum (T.g.) Pinpoint
Clover
Trifolium macraei Clover
Trifolium microcephalum Maiden
Clover
Trifolium microdon Toothed-cup
Clover
Trifolium oliganthum
Trifolium willdenovii (T. tridentatum) Tomcat
Clover
Vicia americana var. americana (incl vars.
linearus & oregona & American
Vetch
V. californica)
?Vicia gigantea Vetch
Vicia sativa ssp. nigra (V. angustifolia) Hairy
Vetch *
FAGACEAE
(OAK FAMILY)
Chrysolepsis (Castanopsis) chrysophylla var. chrysophylla Chinquapin
Quercus agrifolia var. agrifolia (Q.a.) Coast
Live Oak
Quercus chrysolepis Canyon
Live Oak
Quercus durata var. durata (Q.d.)
Leather
Oak
Quercus parvula var. shrevei (Q. wizlizeni var. frutescens in
part)
?Quercus wislizeni var. frutescens Chaparral
Oak
GARRYACEAE
(SILK TASSEL FAMILY)
Garrya elliptica Silk
Tassel Bush
GERANIACEAE
(GERANIUM FAMILY)
Erodium botrys Broad-leaf
Filaree *
Erodium cicutarium Red-stem
Filaree *
Geranium dissectum Cut-leaved
Cranesbill *
Geranium molle Soft
Cranesbill *
HIPPOCASTANACEAE (BUCKEYE
FAMILY)
Aesculus californica California
Buckeye
HYDROPHYLLACEAE
(WATERLEAF FAMILY)
Eriodictyon californicum Yerba
Santa
Nemophila heterophylla
Nemophila menziesii var. menziesii (N.m.) Baby-blue-eye
IRIDACEAE (IRIS FAMILY)
Iris douglasiana (incl var. major)
Douglas
Iris
Iris macrosiphon Ground
Iris
Sisyrinchium bellum Blue-eyed
Grass
JUNCACEAE
(RUSH FAMILY)
Juncus bufonius var. bufonius (J.b.) Toad
Rush
Juncus occidentalis Slender
Rush
Juncus patens Rush
Juncus sp.
Juncus xiphioides Iris-leaved
Rush
Luzula comosa (L. multiflora)
Wood-rush
LAMIACEAE/LABIATAE
(MINT FAMILY)
Monardella purpurea (M. neglecta) Pennyroyal S.L.
Monardella villosa ssp. villosa (M.v. in part) Coyote-mint
Satureja douglasii (S. chamissonis)
Yerba
Buena
Stachys ajugoides var. rigida (S. r. var. quercetorum) Hedge Nettle
LAURACEAE
(LAUREL FAMILY)
Umbellularia californica California
Bay
LILIACEAE
(LILY FAMILY)
Allium triquetrum Onion *
Allium unifolium Onion
Calochortus umbellatus Oakland
Star-tulip LIST 4
Chlorogalum pomeridianum var. pomeridianum (C.p.)
Soap Plant
Dichelostemma (Brodiaea) congestum
Ookow
Dichelostemma capitatum ssp. capitatum (Brodiaea pulchella) Blue Dicks
Disporum sp.
Fritillaria affinis var. affinis (F. lanceolata) Mission
Bells
Scoliopus bigelovii Fetid
Adder's Tongue
Smilacina stellata (S. sessilifolia) Slim
Solomon
Zigadenus fremontii (incl vars. minor & salsus) Star Lily
?Zigadenus micranthus var. fontanus
(Z. f.) Marsh Zigadene T.L.
LINACEAE
(FLAX FAMILY)
?Hesperolinon congestum Marin
Dwarf Flax LIST 1
MALVACEAE (MALLOW FAMILY)
Sidalcea malvaeflora ssp. malvaeflora(S.m.) Checkerbloom
ONAGRACEAE
(EVENING PRIMROSE FAMILY)
Clarkia gracilis ssp. gracilis
Graceful
Clarkia
Clarkia sp.
Epilobium minutum Willow-herb
ORCHIDACEAE
(ORCHID FAMILY)
Corallorhiza striata Striped
Coralroot
Piperia transversa (Habenaria elegans in part) Rein-orchis
OROBANCHACEAE
(BROOM-RAPE FAMILY)
Boschniakia strobilacea Broomrape
PAPAVERACEAE
(POPPY FAMILY)
Eschscholzia californica California
Poppy
Platystemon californicus Cream-cup
PHILADELPHACEAE
(MOCK ORANGE FAMILY)
Whipplea modesta Modesty
PINACEAE
(PINE FAMILY)
Pseudotsuga menziesii var. menziesii (P.m.) Douglas-Fir
PLANTAGINACEAE
(PLANTAIN FAMILY)
Plantago erecta (P. hookeriana var. californica) Dwarf
Plantain
Plantago lanceolata Ribwort *
POACEAE/GRAMINEAE
(GRASS FAMILY)
Aira caryophyllea Silver
Hair Grass *
Avena barbata Slim
Oat *
Briza minor Little
Rattlesnake Grass *
Bromus diandrus
(B. rigidus incl var. gussonii) Ripgut
Grass *
Bromus hordeaceus (B. mollis &. & B. racemosus) Soft Chess *
Bromus laevipes
Calamagrostis ophitidis Serpentine
Reedgrass LIST 4
Danthonia californica var. californica (D.c.)
Oatgrass
Elymus multisetus (Sitanion jubatum) Squirreltail
Festuca californica California
Fescue
Festuca idahoensis Idaho
Fescue
Holcus lanatus Velvet
Grass *
Hordeum murinum ssp. leporinum (H. l.) Farmer's
Foxtail *
Koeleria macrantha (K. cristata)
June
Grass
Melica californica California
Melic T.L.
Melica torreyana Melicgrass
Nassella (Stipa) pulchra Purple
Needlegrass
Poa secunda ssp. secunda (P. scabrella)
One-sided Bluegrass
Vulpia bromoides (Festuca dertonensis) Fescue *
Vulpia microstachys var. pauciflora (Festuca pacifica & Fescue
F. reflexa)
POLEMONIACEAE (PHLOX FAMILY)
Linanthus acicularis Bristly
Linanthus LIST 4
Linanthus androsaceus Lavender
Linanthus
Navarretia rosulata (N. heterodoxa ssp.r.) Marin
County Navarretia LIST 1
Navarretia sp.
Phlox gracilis Phlox
POLYGALACEAE
(MILKWORT FAMILY)
Polygala californica Milkwort
POLYGONACEAE
(BUCKWHEAT FAMILY)
Eriogonum luteolum var. luteolum
Eriogonum nudum var. nudum (E.n.)
Nude
Buckwheat
Rumex acetosella Sheep
Sorrel *
Rumex crispus Curly
Dock *
POLYPODIACEAE
(POLYPODY FAMILY)
Polypodium californicum (incl var. kaulfusii & California
Polypody
fmas.
parsonsiae & branscombii)
PORTULACACEAE (PURSLANE
FAMILY)
Calandrinia ciliata (C.c. var. menziesii) Red
Maids
?Claytonia exigua ssp. exigua (Montia
spathulata incl Slender
Claytonia
vars.rosulata &
tenuifolia)
Claytonia perfoliata ssp. perfoliata (Montia p. & all formas) Miner's Lettuce
PRIMULACEAE
(PRIMROSE FAMILY)
Anagallis arvensis Scarlet
Pimpernel *
Dodecatheon hendersonii (incl ssp. cruciatum) Shooting
Star
Trientalis latifolia Star-flower
PTERIDACEAE
(BRAKE FAMILY)
Aspidotis densa (Onychium d., Cheilanthes siliquosa) Serpentine Fern
Pentagramma (Pityrogramma) triangularis ssp. triangularis Goldback Fern
RANUNCULACEAE
(BUTTERCUP FAMILY)
Ranunculus californicus (incl var. cuneatus) California
Buttercup
RHAMNACEAE (BUCKTHORN
FAMILY)
Ceanothus cuneatus var. cuneatus (C. ramulosus) Blue Buck-brush
Ceanothus foliosus var. foliosus (C.f.) Indigo
Bush
Ceanothus jepsonii var. jepsonii (C.j.) Musk
Bush
Ceanothus oliganthus var. sorediatus (C.s.) Jim
Brush
Rhamnus californica ssp. californica (R.c.) Coffee
Berry
ROSACEAE
(ROSE FAMILY)
Acaena pinnatifida var. californica (A.c.)
Adenostoma fasciculatum Chamise
Aphanes (Alchemilla) occidentalis
Lady's
Mantle
Fragaria vesca (F. californica)
Wild
Strawberry
Heteromeles (Photinia) arbutifolia
Toyon
Oemleria (Osmaronia) cerasiformis
Oso
Berry
Potentilla glandulosa ssp. glandulosa (P.g) Sticky
Cinquefoil
Prunus sp.
*
Rosa californica California
Rose
Rosa gymno