| #
| Latin Name
| (*)Common Name
| Family
| #trails
|
| 1 | Toxicodendron diversilobum | poison oak | Anacardiaceae | 9
|
| 2 | Centaurea melitensis | *tocalote | Asteraceae | 9
|
| 3 | Lessingia filaginifolia var. filaginifolia | California-aster | Asteraceae | 9
|
| 4 | Hirschfeldia incana | *shortpod mustard | Brassicaceae | 9
|
| 5 | Quercus agrifolia var. agrifolia | coast live oak | Fagaceae | 9
|
| 6 | Lonicera subspicata var. denudata | southern honeysuckle | Caprifoliaceae | 8
|
| 7 | Marah macrocarpus var. macrocarpus | wild-cucumber | Cucurbitaceae | 8
|
| 8 | Quercus engelmannii | Engelmann oak | Fagaceae | 8
|
| 9 | Erodium brachycarpum | *short-fruited filaree | Geraniaceae | 8
|
| 10 | Rhamnus ilicifolia | hollyleaf redberry | Rhamnaceae | 8
|
| 11 | Adenostoma fasciculatum | chamise | Rosaceae | 8
|
| 12 | Asclepias eriocarpa | Indian milkweed | Asclepiadaceae | 7
|
| 13 | Erigeron foliosus var. foliosus | leafy daisy | Asteraceae | 7
|
| 14 | Eriophyllum confertiflorum var. confertiflorum | golden yarrow | Asteraceae | 7
|
| 15 | Hypochaeris glabra | *smooth cat's ear | Asteraceae | 7
|
| 16 | Opuntia Xvaseyi | Vasey's prickly pear | Cactaceae | 7
|
| 17 | Lupinus bicolor | dwarf lupine | Fabaceae | 7
|
| 18 | Medicago polymorpha | *California burclover | Fabaceae | 7
|
| 19 | Quercus berberidifolia | scrub oak | Fagaceae | 7
|
| 20 | Sidalcea malviflora ssp. sparsifolia | checkerbloom | Malvaceae | 7
|
| 21 | Rumex crispus | *curly dock | Polygonaceae | 7
|
| 22 | Dichelostemma capitatum ssp. capitatum | blue dicks | Liliaceae | 7
|
| 23 | Sanicula arguta | sharp-toothed sanicle | Apiaceae | 6
|
| 24 | Ambrosia psilostachya | western ragweed | Asteraceae | 6
|
| 25 | Gnaphalium canescens ssp. microcephalum | white everlasting | Asteraceae | 6
|
| 26 | Hazardia squarrosa var. grindelioides | saw-toothed goldenbush | Asteraceae | 6
|
| 27 | Lactuca serriola | *prickly lettuce | Asteraceae | 6
|
| 28 | Solidago californica | goldenrod | Asteraceae | 6
|
| 29 | Sisymbrium officinale | *hedge mustard | Brassicaceae | 6
|
| 30 | Sambucus mexicana | blue elderberry | Caprifoliaceae | 6
|
| 31 | Silene gallica | *windmill pink | Caryophyllaceae | 6
|
| 32 | Astragalus pomonensis | Pomona locoweed | Fabaceae | 6
|
| 33 | Lotus purshianus var. purshianus | Spanish clover | Fabaceae | 6
|
| 34 | Vicia villosa ssp. varia | *winter vetch | Fabaceae | 6
|
| 35 | Quercus berberidifolia X Q. engelmannii | scrub oak X Engelmann oak | Fagaceae | 6
|
| 36 | Ribes indecorum | white-flowering currant | Grossulariaceae | 6
|
| 37 | Clarkia purpurea ssp. quadrivulnera | purple clarkia | Onagraceae | 6
|
| 38 | Eriogonum fasciculatum var. foliolosum | California buckwheat | Polygonaceae | 6
|
| 39 | Heteromeles arbutifolia | toyon | Rosaceae | 6
|
| 40 | Viola pedunculata | johnny jump-up | Violaceae | 6
|
| 41 | Daucus pusillus | rattlesnake weed | Apiaceae | 5
|
| 42 | Sanicula bipinnatifida | purple sanicle | Apiaceae | 5
|
| 43 | Gnaphalium californicum | California everlasting | Asteraceae | 5
|
| 44 | Hemizonia paniculata | San Diego tarweed | Asteraceae | 5
|
| 45 | Holocarpha virgata ssp. elongata | sticky tarweed | Asteraceae | 5
|
| 46 | Sonchus asper ssp. asper | *prickly sow thistle | Asteraceae | 5
|
| 47 | Sonchus oleraceus | *sow thistle | Asteraceae | 5
|
| 48 | Uropappus lindleyi | silver puffs | Asteraceae | 5
|
| 49 | Lathyrus vestitus var. alefeldii | San Diego pea | Fabaceae | 5
|
| 50 | Trifolium ciliolatum | tree clover | Fabaceae | 5
|
| 51 | Erodium cicutarium | *redstem filaree | Geraniaceae | 5
|
| 52 | Geranium dissectum | *cut-leaved geranium | Geraniaceae | 5
|
| 53 | Salvia mellifera | black sage | Lamiaceae | 5
|
| 54 | Paeonia californica | California peony | Paeoniaceae | 5
|
| 55 | Linanthus dianthiflorus | ground pink | Polemoniaceae | 5
|
| 56 | Eriogonum elongatum var. elongatum | long-stemmed buckwheat | Polygonaceae | 5
|
| 57 | Anagallis arvensis | *scarlet pimpernel | Primulaceae | 5
|
| 58 | Ranunculus occidentalis | western buttercup | Ranunculaceae | 5
|
| 59 | Salix lasiolepis | arroyo willow | Salicaceae | 5
|
| 60 | Cordylanthus rigidus ssp. setigerus | bristly bird's beak | Scrophulariaceae | 5
|
| 61 | Mimulus aurantiacus | bush monkeyflower | Scrophulariaceae | 5
|
| 62 | Calochortus splendens | splendid mariposa lily | Liliaceae | 5
|
| 63 | Chlorogalum pomeridianum var. pomeridianum | soap plant | Liliaceae | 5
|
| 64 | Malosma laurina | laurel sumac | Anacardiaceae | 4
|
| 65 | Sanicula crassicaulis | Pacific sanicle | Apiaceae | 4
|
| 66 | Asclepias fascicularis | narrow-leaf milkweed | Asclepiadaceae | 4
|
| 67 | Artemisia californica | California sagebrush | Asteraceae | 4
|
| 68 | Baccharis salicifolia | mule fat | Asteraceae | 4
|
| 69 | Chamomilla suaveolens | *pineapple weed | Asteraceae | 4
|
| 70 | Cirsium vulgare | *bull thistle | Asteraceae | 4
|
| 71 | Thysanocarpus curvipes | fringe-pod | Brassicaceae | 4
|
| 72 | Stellaria media | *common chickweed | Caryophyllaceae | 4
|
| 73 | Calystegia macrostegia | southern California morning-glory | Convolvulaceae | 4
|
| 74 | Eremocarpus setigerus | dove weed | Euphorbiaceae | 4
|
| 75 | Lotus hamatus | San Diego birdsfoot lotus | Fabaceae | 4
|
| 76 | Lotus scoparius | deerweed | Fabaceae | 4
|
| 77 | Trifolium gracilentum var. gracilentum | pin-point clover | Fabaceae | 4
|
| 78 | Trifolium willdenovii | tomcat clover | Fabaceae | 4
|
| 79 | Salvia apiana | white sage | Lamiaceae | 4
|
| 80 | Calandrinia ciliata | red maids | Portulacaceae | 4
|
| 81 | Claytonia perfoliata | miner's lettuce | Portulacaceae | 4
|
| 82 | Delphinium parryi ssp. parryi | blue larkspur | Ranunculaceae | 4
|
| 83 | Rhamnus crocea | redberry | Rhamnaceae | 4
|
| 84 | Potentilla glandulosa ssp. glandulosa | sticky cinquefoil | Rosaceae | 4
|
| 85 | Collinsia heterophylla | Chinese houses | Scrophulariaceae | 4
|
| 86 | Scrophularia californica ssp. floribunda | California bee plant | Scrophulariaceae | 4
|
| 87 | Sisyrinchium bellum | blue-eyed grass | Iridaceae | 4
|
| 88 | Rhus trilobata | skunkbush | Anacardiaceae | 3
|
| 89 | Lomatium utriculatum | common lomatium | Apiaceae | 3
|
| 90 | Agoseris grandiflora | grand mountain dandelion | Asteraceae | 3
|
| 91 | Baccharis pilularis | coyote bush | Asteraceae | 3
|
| 92 | Lasthenia californica | goldfields | Asteraceae | 3
|
| 93 | Madia gracilis | slender madia | Asteraceae | 3
|
| 94 | Senecio vulgaris | *common groundsel | Asteraceae | 3
|
| 95 | Stephanomeria virgata | twiggy wreath plant | Asteraceae | 3
|
| 96 | Cryptantha intermedia | popcorn flower | Boraginaceae | 3
|
| 97 | Plagiobothrys nothofulvus | rusty-haired popcorn flower | Boraginaceae | 3
|
| 98 | Cardamine californica var. californica | milk maids | Brassicaceae | 3
|
| 99 | Silene laciniata ssp. major | southern Indian pink | Caryophyllaceae | 3
|
| 100 | Lupinus concinnus | bajada lupine | Fabaceae | 3
|
| 101 | Lupinus truncatus | collar lupine | Fabaceae | 3
|
| 102 | Vicia americana var. americana | American vetch | Fabaceae | 3
|
| 103 | Vicia ludoviciana var. ludoviciana | slim vetch | Fabaceae | 3
|
| 104 | Nemophila menziesii | baby blue eyes | Hydrophyllaceae | 3
|
| 105 | Phacelia cicutaria var. hispida | caterpillar phacelia | Hydrophyllaceae | 3
|
| 106 | Epilobium canum ssp. canum | California fuchsia | Onagraceae | 3
|
| 107 | Eschscholzia californica | California poppy | Papaveraceae | 3
|
| 108 | Gilia angelensis | angel's gilia | Polemoniaceae | 3
|
| 109 | Fritillaria biflora var. biflora | chocolate lily | Liliaceae | 3
|