Arroyo Seco, San Gabriel Mountains, Flora: A Check List
Bob Muns, April 2001
#, Latin Name Common Name Life
Form
Intro
sp*Flower
PeriodHabitat /
Plant CommunityFerns and Fern Allies
Dennstaedtiaceae Bracken Family 1 Pteridium aquilinum var. pubescens Bracken P 9-11 moist, shaded places Dryopteridaceae Woodfern Family 2 Dryopteris arguta Woodfern P 4-11 Ch, MEF, shaded sl Polypodiaceae Polypody Family 3 Polypodium californicum California Polypody P 1-5 moist rocky slopes Pteridaceae Fern Family 4 Pellaea andromedifolia Coffee Fern P 1-4 Ch, CSS, dry places 5 Pentagramma triangularis Goldback Fern P 12-4 shaded, rocky places Selaginellaceae Spike Moss Family 6 Selaginella bigelovii Spike Moss P - dry, rocky, banks Dicots
Aceraceae Maple Family 7 Acer macrophyllum Big Leaf Maple T 4-5 Ch, CSS, MEF, Rp Anacardiaceae Sumac Family 8 Malosma laurina Laurel Sumac S 6-7 Ch, CSS, cis 9 Rhus integrifolia Lemonade Berry S 2-5 Ch, CSS, coast bluffs 10 Rhus ovata Sugar Bush S 3-5 Ch, CSS 11 Rhus trilobata Squaw Bush S 3-4 Ch, CSS, OW 12 Toxicodendron diversilobum Poison Oak S 4-5 Ch, CSS Apiaceae Carrot Family 13 Anthriscus caucalis Bur Chervil *A 4-6 W, shaded places 14 Conium maculatum Poison Hemlock *A 4-9 low waste places 15 Daucus pusillus Rattlesnake Weed A 4-6 Ch, CSS, OW 16 Tauschia arguta Tauschia P 4-6 Ch, CSS Apocynaceae Dogbane Family 17 Nerium oleander Oleander *S - cultivated 18 Vinca major Periwinkle *P 3-7 garden escape Araliaceae Ginseng Family 19 Hedera helix English Ivy *P - garden escape Asteraceae Sunflower Family 20 Ageratina adenophora Eupatory *P 1-12 by streams 21 Ambrosia acanthicarpa Bur Weed A 8-11 CSS, FW, VG, W 22 Ambrosia psilostachya Western Ragweed P 7-11 Ch, CSS, cis 23 Anthemis cotula Dog Fennel, Mayweed *A 4-8 W, fields, & 24 Artemisia californica California Sagebrush S 8-12 Ch, CSS 25 Artemisia douglasiana Mugwort P 6-10 Ch, W 26 Artemisia dracunculus Wild Tarragon P 8-10 Mont, cis, MC 27 Baccharis salicifolia Mule Fat S 1-12 Rp, cis, des 28 Bidens pilosa var. pilosa Beggar-Ticks *A 5-11 W 29 Brickellia californica California Brickellbush S 8-10 Ch, CSS, cis, des 30 Brickellia nevinii Little Brickellbush S 9-11 Ch, CSS, dry slopes 31 Carduus pycnocephalus Italian Thistle *A 5-7 roadsides, W 32 Centaurea melitensis Yellow Star Thistle *A 5-6 roadsides, W 33 Chamomilla suaveolens Pineapple Weed *A 5-8 W 34 Cirsium occidentale Western Thistle A/B 4-7 Ch, CSS, & 35 Conyza bonariensis Little Horseweed *A 6-8 W 36 Conyza canadensis Horseweed A 6-9 W 37 Cotula australis Australian Brassbutton *A 1-5 W 38 Ericameria pinifolia Pine Bush S 4-6, 9-1 Ch, CSS, OW 39 Erigeron foliosus Fleabane Aster P 5-7 Ch, OW, YPF 40 Eriophyllum confertiflorum Golden Yarrow SS 4-8 Ch, CSS 41 Filago gallica Filago *A 4-6 W, burns 42 Gnaphalium bicolor Bicolor Everlasting B/P 1-5 Ch, CSS, cis 43 Gnaphalium californicum Green everlasting B/P 1-7 Ch, & 44 Gnaphalium canescens Felt Leaf B/P 7-10 Ch 45 Gnaphalium luteo-album Cudweed *A 1-12 W 46 Gnaphalium purpureum Purple Cudweed A 4-7 W 47 Gnaphalium sp. Everlasting - - - 48 Hazardia squarrosa Saw Tooth Goldenbush S 9-11 Ch, CSS 49 Hedypnois cretica Crete Weed *A 3-5 W 50 Helianthus annuus Common Sunflower A 2-10 MC 51 Heterotheca grandiflora Telegraph Weed A/B most CSS, Ch, OW, cis 52 Heterotheca villosa Golden Aster SS 7-11 Ch, CSS, YPF, VG 53 Hypochaeris glabra Cat's Ear *A 3-6 W, fields 54 Lactuca serriola Prickly Lettuce *A 5-9 W 55 Lepidospartum squamatum Scale Broom S 8-10 Ch, CSS, des 56 Lessingia filaginifolia Cudweed Aster SS 7-10 Ch, CSS, YPF, & 57 Malacothrix saxatilis Cliff Aster P most CSS, & 58 Rafinesquia californica California White Chicory A 4-7 Ch, CSS, burns 59 Senecio flaccidus Douglas Senecio S 6-10 Ch, CSS, VG, & 60 Sonchus oleraceus Sow Thistle *A 1-12 W 61 Stephanomeria cichoriacea Tejon Milk Aster P 8-10 Ch, YPF, rocky slopes 62 Taraxacum officinale Dandelion *P 1-12 damp places 63 Tetradymia sp. Horsebrush - - - 64 Xanthium strumarium Cockle Bur A 7-10 W, moist places Betulaceae Birch Family 65 Alnus rhombifolia White Alder T 1-4 Ch, YPF, Rp Boraginaceae Borage Family 66 Cryptantha sp. Popcorn Flower A - Ch, CSS 67 Pectocarya sp. Comb Bur - - - Brassicaceae Mustard Family 68 Capsella bursa-pastoris Shepherd's Purse *A 1-12 W 69 Coronopus didymus Wart Cress *A 3-7 W 70 Erysimum capitatum Wallflower B/P 3-7 Ch, MEF 71 Hirschfeldia incana Mediterranean Mustard *A/B 5-10 W, cis 72 Lepidium virginicum Pepper Grass A 3-8 Ch, CSS, etc. 73 Lobularia maritima Sweet Alyssum * 1-12 W 74 Raphanus sativus Wild Radish *A 2-7 W 75 Rorippa nasturtium-aquaticum Water Cress P 3-11 Rp, in streams 76 Sisymbrium irio London Rocket *A 1-4 W 77 Sisymbrium officinale Hedge Mustard *A 4-7 OW, W 78 Sisymbrium orientale Oriental Hedge Mustard *A 4-5 W 79 Thysanocarpus laciniatus Fringe Pod A 3-5 MC Cactaceae Cactus Family 80 Opuntia ficus-indica Mission Cactus *S/T 5-6 - 81 Opuntia sp. Prickly Pear * - - Caprifoliaceae Honeysuckle Family 82 Lonicera subspicata Wild Honeysuckle S 4-6 Ch 83 Sambucus mexicana Elderberry S/T 3-9 Ch, CSS, OW Caryophyllaceae Pink Family 84 Polycarpon tetraphyllum Polycarp *A 5-7 W, cis 85 Silene gallica Catchfly *A 2-6 W 86 Silene laciniata ssp. major Indian Pink P 5-7 Ch, CSS 87 Spergularia sp. Sand Spurrey *A - - 88 Stellaria media Chickweed *A 2-9 shaded places, cis Chenopodiaceae Goosefoot Family 89 Chenopodium album Lamb's Quarters *A 6-2 W 90 Chenopodium ambrosioides Mexican Tea *A/P 7-10 W 91 Chenopodium botrys Jerusalem Oak *A 6-10 - 92 Chenopodium murale Nettle-leaved Goosefoot *A 1-12 W Convolvulaceae Morning Glory Family 93 Calystegia macrostegia Morning Glory P 5-6 Ch, CSS, dry slopes Crassulaceae Stonecrop Family 94 Crassula connata Pygmy Weed A 2-5 open places, cis, des 95 Dudleya lanceolata Lance Leaf Dudleya P 5-7 Ch, CSS 96 Dudleya sp. Live-Forever P - - Cucurbitaceae Gourd Family 97 Cucurbita foetidissima Wild Gourd P 6-8 CSS, VG, des 98 Marah macrocarpus Wild Cucumber P 1-4 Ch, CSS, OW Cuscutaceae Dodder Family 99 Cuscuta sp. Dodder A - Ch, CSS, & Euphorbiaceae Spurge Family 100 Euphorbia peplus Petty Spurge *A 2-8 W 101 Ricinus communis Castor Bean *S 1-12 W Fabaceae Pea Family 102 Cytisus scoparius Scotch Broom * 4-6 W 103 Lathyrus vestitus Wild Sweet Pea P 4-6 Ch, CSS 104 Lotus purshianus var. purshianus Spanish Clover A 5-10 MC 105 Lotus salsuginosus Alkali Lotus A 3-6 Ch, CSS 106 Lotus scoparius Deerweed S/SS 3-8 Ch, CSS, & 107 Lotus sp. Annual Lotus A - - 108 Lupinus hirsutissimus Stinging Lupine A 3-5 Ch, CSS, burns 109 Lupinus sp. Bush Lupine S - - 110 Lupinus truncatus Collar Lupine A 3-5 Ch, CSS 111 Medicago polymorpha Bur Clover *A 3-6 W 112 Melilotus indica Yellow Sweet Clover *A 3-6 W 113 Spartium junceum Spanish Broom *S 4-6 roadcuts, W Fagaceae Oak Family 114 Quercus agrifolia Coast Live Oak T 3-4 OW, MEF, Rp 115 Quercus berberidifolia Scrub Oak S 3-5 Ch, OW, & 116 Quercus chrysolepis Canyon Oak T 4-5 MEF, Rp 117 Quercus sp. Oak - - - Geraniaceae Geranium Family 118 Erodium botrys Big Beak Filaree *A 3-5 grassy places 119 Erodium cicutarium Red Stem Filaree *A 2-5 W, cis, des 120 Erodium moschatum White Stem Filaree *A 2-5 W 121 Geranium molle? Geranium *A 5-7 W, lawns Grossulariaceae Gooseberry Family 122 Ribes aureum Golden Currant S 2-4 OW, brushy pl 123 Ribes malvaceum Chaparral Currant S 10-3 Ch, FW, CCPF Hydrophyllaceae Phacelia Family 124 Eriodictyon crassifolium Hoary Yerba Santa S 4-5 Ch, PJW, etc. 125 Eucrypta chrysanthemifolia Eucrypta A 3-6 Ch, CSS, OW 126 Phacelia cicutaria Caterpillar Phacelia A 3-5 Ch, CSS, OW 127 Phacelia distans Fern Leaf Phacelia A 3-6 Ch, CSS, & 128 Phacelia minor Wild Canterbury Bells A 3-6 Ch, CSS 129 Phacelia ramosissima Branching Phacelia P 5-8 Ch, YPF Lamiaceae Mint Family 130 Lamium amplexicaule Dead Nettle *A 4-9 W 131 Marrubium vulgare Horehound *P 4-8 Ch, CSS, W 132 Salvia apiana White Sage S 4-7 Ch, CSS, YPF 133 Salvia apiana X S. mellifera Hybrid White Sage S - Ch 134 Salvia columbariae Chia A 3-6 Ch, CSS, cis, des 135 Salvia mellifera Black Sage S 4-7 Ch, CSS Lauraceae Laurel Family 136 Umbellularia californica California Bay S/T 12-5 Ch, lower YPF, FW Malvaceae Mallow Family 137 Malva parviflora Round Leaf Mallow *A 1-12 W Nyctaginaceae Four-O'Clock Family 138 Mirabilis californica Wishbone Bush P 3-5 Ch, CSS, FW Oleaceae Olive Family 139 Fraxinus sp. Ash T - - Onagraceae Evening Primrose 140 Camissonia californica Mustard Suncup A 4-5 Ch, CSS, & 141 Camissonia sp. Suncup - - - 142 Clarkia sp. Lilac Clarkia A - - 143 Clarkia unguiculata Elegant Clarkia A 5-6 Ch, VG, CSS, & 144 Epilobium canum California Fuchsia SS 7-11 Ch, CSS, OW 145 Epilobium ciliatum Willow Herb A 7-9 streamside, moist places 146 Oenothera elata Hooker's Eve. Primrose B 6-8 Ch, CSS Oxalidaceae Wood-Sorrel Family 147 Oxalis pes-caprae Bermuda buttercup *P 11-3 W Papaveraceae Poppy Family 148 Eschscholzia californica California Poppy A/P 2-9 grassy, open places Plantaginaceae Plantain Family 149 Plantago indica? Sand Plantain *A 7-11 W 150 Plantago lanceolata English Plantain *P 4-8 moist pl, & 151 Plantago major Common Plantain *P 4-9 W, damp pl, & Platanaceae Sycamore Family 152 Platanus racemosa Western Sycamore T 2-4 Rp, by streams Polemoniaceae Phlox Family 153 Gilia capitata Globe Gilia A 4-5 Ch, CSS, YPF, & 154 Leptodactylon californicum Prickly Phlox S 3-6 Ch, FW Polygonaceae Buckwheat Family 155 Eriogonum elongatum var. elongatum Wand Buckwheat P 8-11 Ch, CSS, & 156 Eriogonum fasciculatum California Buckwheat S 1-12 Ch, CSS, PJW, CBS 157 Polygonum arenastrum Knotweed *A 2-10 W 158 Pterostegia drymarioides Thread Stem A 3-5 MC 159 Rumex crispus Curly Dock *P 3-6 weed in low pl Portulacaceae Purslane Family 160 Claytonia perfoliata Miner's Lettuce A 2-5 Ch, CSS, OW Primulaceae Primrose Family 161 Anagallis arvensis Scarlet Pimpernel *A 3-7 W Ranunculaceae Buttercup Family 162 Clematis lasiantha Virgin's Bower S 3-6 Ch, in canyons, near streams 163 Delphinium cardinale Scarlet Larkspur P 5-6 Ch, CSS, & Rhamnaceae Buckthorn Family 164 Ceanothus leucodermis Chaparral White Thorn S 4-6 Ch, OW, dry slopes 165 Ceanothus oliganthus Hairy Ceanothus S 2-4 Ch, dry slopes 166 Rhamnus californica Coffee Berry S 5-6 Ch, CSS 167 Rhamnus crocea Red Berry S 3-4 Ch, CSS, OW 168 Rhamnus ilicifolia Holly Leaf Red Berry S 3-6 Ch, YPF Rosaceae Rose Family 169 Adenostoma fasciculatum Chamise S 5-6 Ch 170 Cercocarpus betuloides Mountain Mahogany S/T 3-4 Ch, dry slopes, washes 171 Heteromeles arbutifolia Toyon S/T 6-7 Ch, CSS 172 Prunus ilicifolia Holly Leaf Cherry S 4-5 Ch, dry slopes, & 173 Rubus discolor Himalaya Berry *S 5-8 W, open places 174 Rubus ursinus Black Berry S 2-5 W, MC Rubiaceae Bedstraw Family 175 Galium angustifolium Linear Leaf Bedstraw SS 4-6 MC, many var 176 Galium aparine Cleavers A 3-7 shaded pl, MC Salicaceae Willow Family 177 Salix gooddingii Black Willow S/T - stream banks, wet pl 178 Salix lasiolepis Arroyo Willow S/T 1-3 stream banks, wet pl Saxifragaceae Saxifrage Family 179 Boykinia rotundifolia Round Leaf Boykinia P 6-7 wet places, in canyons Scrophulariaceae Snapdragon Family 180 Castilleja foliolosa Indian Paintbrush P 3-6 CSS, Ch, dry rocky pl 181 Keckiella cordifolia Heart-Leaf Penstemon S 3-6 Ch, CSS, OW 182 Mimulus aurantiacus Bush Monkey Flower SS/S 1-5 Ch, CSS 183 Mimulus cardinalis Scarlet Monkey Flower P 4-10 Ch, CSS, MCF, wet pl 184 Mimulus guttatus Creek Monkey Flower P/A 3-8 wet places, MC 185 Verbascum blattaria Moth Mullein *B 5-9 W 186 Verbascum thapsus Common Mullein *B 6-9 W 187 Veronica anagallis-aquatica Great-Water Speedwell *P 5-9 by streams, wet places Simaroubaceae Quassia Family 188 Ailanthus altissima Tree-of-Heaven *T 5-6 widely naturalized, cis Solanaceae Nightshade Family 189 Datura wrightii Jimson Weed P 4-10 Ch, CSS, grassy pl, W 190 Nicotiana glauca Tree Tobacco *S 3-10 W 191 Solanum douglasii White Nightshade SS/S 1-12 Ch, CSS 192 Solanum xanti Purple Nightshade SS/S 2-6 Ch, OW Urticaceae Nettle Family 193 Hesperocnide tenella Black-Hair Nettle A 4-6 Ch, CSS, shaded places 194 Parietaria hespera Pellitory A 4-5 moist, shaded places 195 Urtica urens Annual Stinging Nettle *A 1-4 W, gardens, orchards Viscaceae Mistletoe Family 196 Phoradendron macrophyllum? Sycamore Mistletoe P 10-3 Rp Vitaceae Grape Family 197 Vitis girdiana Wild Grape S 5-6 CSS, OW, & Monocots
Cyperaceae Sedge Family 198 Carex sp. Sedge (spreading) P - Rp, shaded places 199 Carex sp. Sedge (bunch) P - streamside 200 Cyperus eragrostis Umbrella Plant P - streamside Juncaceae Rush Family 201 Juncus textilis Indian Rush P 5-6 moist places, MC 202 Juncus xiphioides Iris-Leaved Rush P 5-10 streamside Liliaceae Lily Family 203 Agave americana Century Plant *P - W, ornamental 204 Bloomeria crocea Yellow Star Lily P 4-6 Ch, CSS, OW, VG 205 Dichelostemma capitatum Blue Dicks P 3-5 Ch, CSS, VG, & 206 Yucca whipplei Chaparral Yucca - 4-5 Ch, CSS, CSB, dry stony slopes Poaceae Grass Family 207 Arundo donax Giant Reed *S 3-9 by streams, moist pl 208 Avena barbata Slim Oats *A 3-6 Grassy pl, W 209 Avena fatua Wild Oats *A 4-6 Grassy pl, W 210 Bromus diandrus Rip Gut *A 4-6 W 211 Bromus hordeaceus Soft Chess *A 4-7 W 212 Bromus madritensis Red Brome *A 3-6 W, cis, des 213 Bromus sp. Brome Grass * - - 214 Cynodon dactylon Bermuda Grass *P 4-10 W 215 Echinochloa crus-galli Barnyard Grass *A 7-10 W 216 Hordeum murinum Foxtail Barley *A - W 217 Lamarckia aurea Golden Top *A 2-5 Ch, CSS, W 218 Leymus condensatus Giant Rye Grass P 6-8 Ch, CSS, OW 219 Lolium sp. Rye *A - W 220 Melica imperfecta Chaparral Melic P 4-5 Ch, cis, des 221 Nassella sp. Needlegrass (Stipa) P - - 222 Piptatherum miliaceum Smilo Grass *P 4-9 W 223 Poa annua Annual Blue Grass *A 1-7 MC 224 Poa sp. Blue Grass - - by streams 225 Schismus sp. Medit. Grass * - - 226 Vulpia sp. Ann. Fescue * - - Typhaceae Cat Tail Family 227 Typha sp. Cat Tail P - wet pl, FWM
Legend:
T = Tree
S = Shrub
SS = Subshrub
A = Annual
P = Perennial
B = Biennial
* = IntroducedFW = Foothill Woodland
Ch = Chaparral
CSS = Coastal Sage
Scrub
OW = Oak Woodland
VG = Valley Grassland
FWM = Freshwater Marsh
YPF = Yellow Pine Forest
MCF = Montane Coniferous
Forest
MEF = Mixed Evergreen Forest
PJW = Pinyon-Juniper Woodland
CBS = Creosote Bush Scrub
W = Weedy, Waste or Disturbed
Places
MC = Many Plant CommunitiesRp = Riparian
Mont = Montane
& = And Other Communities
pl = places
sl = slopes
cis = Cismontane
des = Desert
Changes From The Printed Flora
- 52 Heterotheca villosa changed to Heterotheca sessiliflora.
- Typos corrected.
- List was realphabetized.
- Some missing life form and habitat information was added.
Go to:
Copyright © 2002-2003 by Bob Muns, Tom Chester and Michael Charters
Permission is freely granted to reproduce any or all of this page as long as credit is given to us at this source:
http://tchester.org/plants/muns/sgm/arroyo_seco.html
Comments and feedback: Tom Chester | Michael Charters, who will relay comments to Bob.
Last update: 6 January 2003