Mile | # | S | id? | Common Name | Latin Name | #here | #all
|
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0.00 | | | | Beginning of this guide at east path, immediately west of the bathrooms and casting pond, where the mitigation stream begins by flowing out of the culvert. This guide will stay as close to the stream as possible.
|
0.00 | 1 | r | | western sycamore | Platanus racemosa | 50 / 9 | 10
|
0.00 | 2 | r | | *sow thistle | Sonchus oleraceus | 50 / 3 | 9
|
0.00 | 3 | r | | *London rocket | Sisymbrium irio | 99 / 9 | 2
|
0.00 | 4 | | | *pineapple weed | Chamomilla suaveolens | 40 / 4 |
|
0.00 | 5 | r | | *Australian brass-buttons | Cotula australis | 50 / 2 | 2
|
0.00 | 6 | r | | *California burclover | Medicago polymorpha | 99 / 9 | 9
|
0.00 | 7 | r | | *ditch beard grass | Polypogon interruptus | 99 / 9 | 1
|
0.00 | 8 | r | | horseweed | Conyza canadensis | 99 / 9 |
|
0.00 | 9 | r | | *redstem filaree | Erodium cicutarium | 99 / 9 | 14
|
0.00 | 10 | r | sp | *cheeseweed | Malva parviflora | 99 / 9 | 3
|
0.00 | 11 | r | ? | unk asteraceae
|
0.00 | 12 | r | | black willow | Salix gooddingii | 1 / 1 | 5
|
0.00 | | r | | Culvert
|
0.00 | 13 | r | | *prickly lettuce | Lactuca serriola | 20 / 9 |
|
0.00 | 14 | r | | coast live oak | Quercus agrifolia var. agrifolia | 10 / 5 | 17
|
0.00 | 15 | r | | California coffeeberry | Rhamnus californica ssp. californica | 50 / 9 | 7
|
0.00 | 16 | r | | blue elderberry | Sambucus mexicana | 20 / 5 | 19
|
0.00 | | r | | Take path to right of main road, to be close to stream.
|
0.00 | 17 | r | | *shortpod mustard | Hirschfeldia incana | 99 / 9 | 20
|
0.01 | 18 | r | | *Mexican tea | Chenopodium ambrosioides | 10 / 2 | 6
|
0.01 | 19 | r | ~ | *tumble pigweed | Amaranthus albus | / | 2
|
0.01 | 20 | r | | bittercress | Cardamine oligosperma | / | 3
|
0.01 | 21 | r | | *common cudweed | Gnaphalium luteo-album | / |
|
0.01 | 22 | r | | small-flowered evening-primrose | Camissonia micrantha | 99 / 9 | 2
|
0.01 | 23 | r | ~ | annual sunflower | Helianthus annuus | 3 / 1 | 4
|
0.01 | 24 | r | | toyon | Heteromeles arbutifolia | 5 / 5 | 20
|
0.01 | 25 | r | | California wild rose | Rosa californica | / | 5
|
0.01 | | r | | (broadleaf cattail, Typha latifolia)
|
0.01 | 26 | b | | bur-ragweed | Ambrosia acanthicarpa | 99 / 2 | 5
|
0.01 | 27 | r | | sacred datura | Datura wrightii+ | 10 / 2 | 8
|
0.02 | 28 | r | | mule fat | Baccharis salicifolia | 30 / 9 | 17
|
0.02 | 29 | b | | California poppy | Eschscholzia californica | / | 9
|
0.02 | 30 | r | | *white goosefoot | Chenopodium album | 10 / 1 | 7
|
0.02 | | l | | (North end of bathrooms)
|
0.02 | 31 | r | | red willow | Salix laevigata | 1 / 1 | 8
|
0.03 | | | | Path curves right between an elderberry and a mule fat.
|
0.03 | 32 | r | | white alder | Alnus rhombifolia | 30 / 9 | 4
|
0.04 | 33 | r | ~ | *curly dock | Rumex crispus | 99 / 5 | 9
|
0.04 | 34 | r | | willowherb | Epilobium ciliatum ssp. ciliatum | 99 / 1 | 5
|
0.04 | 35 | r | | narrowleaf willow | Salix exigua | 5 / 3 | 5
|
0.04 | 36 | r | | golden currant | Ribes aureum var. gracillimum | 10 / 5 | 1
|
0.04 | | l | | (unknown woody shrub, big thing, ferny leaves, multiple stems)
|
0.05 | 37 | l | | sugar lemonade berry | Rhus integrifolia X R. ovata | 1 / 1 | 1
|
0.05 | 38 | r | sp | pampas grass | Cortaderia sp. | / |
|
0.06 | 39 | r | | arroyo willow | Salix lasiolepis | 20 / 9 | 17
|
0.07 | 40 | r | | shining willow | Salix lucida ssp. lasiandra | 2 / 2 | 1
|
0.07 | 41 | r | | umbrella sedge | Cyperus eragrostis | / | 1
|
0.07 | 42 | r | | broadleaf cattail | Typha latifolia | 99 / 9 | 1
|
0.08 | 43 | l | | *black locust | Robinia pseudoacacia | 5 / 1 | 4
|
0.08 | 44 | r | | short-leaved cliff-aster | Malacothrix saxatilis var. tenuifolia | 2 / 2 | 4
|
0.08 | | l | | End of casting pond.
|
0.08 | 45 | r | | common bedstraw | Galium aparine | 10 / 2 | 5
|
0.09 | 46 | r | | water cress | Rorippa nasturtium-aquaticum | 99 / 3 | 3
|
0.10 | 47 | r | | black cottonwood | Populus balsamifera ssp. trichocarpa | 20 / 9 | 7
|
0.10 | 48 | b | | *common chickweed | Stellaria media | 99 / 3 | 4
|
0.11 | 49 | r | | *camphor tree | Cinnamomum camphora | 1 / 1 | 1
|
0.11 | 50 | l | | *horehound | Marrubium vulgare | 10 / 2 | 11
|
0.12 | 51 | r | | California blackberry | Rubus ursinus | 20 / 5 | 7
|
0.12 | 52 | r | | wild-cucumber | Marah macrocarpus var. macrocarpus | 2 / 2 | 13
|
0.12 | | r | | (11 leaflet ash, Fraxinus sp.; eupatory, Ageratina adenophora)
|
0.14 | 53 | l | | *bull thistle | Cirsium vulgare | 1 / 1 | 6
|
0.14 | 54 | l | | southern honeysuckle | Lonicera subspicata var. denudata | 10 / 5 | 17
|
0.14 | 55 | l | | hollyleaf cherry | Prunus ilicifolia ssp. ilicifolia | 5 / 4 | 5
|
0.14 | 56 | r | sp | 11 leaflet ash | Fraxinus sp. | 2 / 2 |
|
0.14 | 57 | l | | laurel sumac | Malosma laurina | 1 / 1 | 16
|
0.14 | 58 | l | | poison oak | Toxicodendron diversilobum | 5 / 1 | 16
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0.15 | 59 | r | | *eupatory | Ageratina adenophora | 99 / 2 | 3
|
0.16 | 60 | r | | Fremont cottonwood | Populus fremontii ssp. fremontii | 1 / 1 | 7
|
0.17 | | r | | End of stream, with water going into culvert draining into the concrete Arroyo Seco channel.
|
0.18 | | l | | Drainage from east bank.
|
0.18 | 61 | l | sp | miner's lettuce | Claytonia perfoliata | 1 / 1 | 4
|
0.18 | 62 | l | sp | oak | Quercus sp., lvs similar to Q. ilex, Q. tomentella, or Q. chrysolepis | 1 / 1 |
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0.19 | 63 | l | | California bay | Umbellularia californica | 1 / 1 | 4
|
0.19 | 64 | l | | hollyleaf redberry | Rhamnus ilicifolia | 3 / 3 | 18
|
0.20 | 65 | r | | *olive | Olea europaea | 10 / 2 | 3
|
0.20 | | l | | (black sage, Salvia mellifera)
|
0.20 | 66 | r | | California buckwheat | Eriogonum fasciculatum var. foliolosum | 30 / 3 | 21
|
0.20 | | b | | (white sage, Salvia apiana)
|
0.20 | | r | | (California encelia, Encelia californica)
|
0.20 | 67 | l | | collar lupine | Lupinus truncatus | 2 / 1 | 6
|
0.20 | 68 | l | | arroyo lupine | Lupinus succulentus | 5 / 5 | 1
|
0.20 | 69 | l | | purple clarkia | Clarkia purpurea ssp. quadrivulnera | 99 / 9 |
|
0.20 | | r | | (California sagebrush, Artemisia californica)
|
0.21 | 70 | l | | *shepherd's purse | Capsella bursa-pastoris | 99 / 5 | 2
|
0.21 | | | | Trail forks; take left branch; we'll return using the right branch.
|
0.22 | 71 | l | sp | Schismus sp. | Schismus sp. | / |
|
0.22 | | l | ~ | California suncup | Camissonia californica+ | 99 / 9 | 5
|
0.22 | 72 | l | | California sagebrush | Artemisia californica | 20 / 3 | 20
|
| | | |
|
0.23 | 73 | r | | mugwort | Artemisia douglasiana | 20 / 5 | 14
|
0.23 | 74 | r | | *bur chervil | Anthriscus caucalis | 99 / 2 | 3
|
0.23 | 75 | r | ~ | white nightshade | Solanum douglasii | 1 / 1 | 6
|
0.23 | 76 | r | | Coulter's lupine | Lupinus sparsiflorus | / | 1
|
0.23 | 77 | r | | California croton | Croton californicus | 5 / 2 | 4
|
0.23 | 78 | r | | black sage | Salvia mellifera | 20 / 3 | 18
|
0.23 | | r | | Jct. shortcut trail between the two branches.
|
0.23 | 79 | b | | California encelia | Encelia californica | 20 / 3 | 7
|
0.23 | 80 | b | | white sage | Salvia apiana | 20 / 3 | 15
|
0.48 | 81 | r | ? | popcorn flower? | Plagiobothrys sp.? | / |
|
0.23 | 82 | l | ? | smooth cat's ear?
|
0.23 | 83 | l | | wild canterbury bells | Phacelia minor | / |
|
0.24 | 84 | r | | stinging lupine | Lupinus hirsutissimus | 3 / 1 | 4
|
0.24 | | l | | Sprinkler head at end of white pipe.
|
| 85 | r | | elegant clarkia | Clarkia unguiculata | / |
|
0.29 | 86 | r | | giant wild rye | Leymus condensatus | 20 / 2 | 12
|
0.29 | 87 | l | ~ | American elm | Ulmus americana | 1 / 1 |
|
0.29 | 88 | l | | Southern California black walnut | Juglans californica var. californica | 5 / 1 | 1
|
0.30 | 89 | l | | *henbit | Lamium amplexicaule | 5 / 1 | 3
|
0.30 | 90 | l | | big saltbush | Atriplex lentiformis ssp. torreyi | 1 / 1 | 1
|
0.30 | 91 | l | | deer brush | Ceanothus integerrimus | 3 / 3 | 4
|
0.30 | 92 | l | | Engelmann oak | Quercus engelmannii | 5 / 5 | 10
|
0.31 | 93 | r | | coyote bush | Baccharis pilularis | 2 / 2 | 12
|
0.31 | | r | | "Bird-watching" bench
|
0.34 | | | | Jct. with signed Horseback Riding and Hiking Trail; go right on it.
|
0.35 | 94 | l | | *greater periwinkle | Vinca major | 5 / 1 | 4
|
0.35 | | l | | Short old white post with letters "SO". Anyone know what that stands for?
|
0.36 | 95 | l | | greenbark ceanothus | Ceanothus spinosus | 2 / 1 | 1
|
0.37 | 96 | r | | branching phacelia | Phacelia ramosissima var. latifolia | 3 / 1 | 6
|
0.37 | 97 | l | | *Canary Island pine | Pinus canariensis | 5 / 1 | 1
|
0.37 | | r | | Bathrooms
|
0.38 | | | | Tin shed with pump inside on left; hitching rails on right.
|
0.41 | | | | Jct. with main path alongside concrete channel; go right on small path paralleling the main path.
|
0.44 | | r | | Emergency phone.
|
0.46 | 98 | r | | *Russian thistle | Salsola tragus | 3 / 1 | 15
|
0.48 | | | | Y junction; take right branch.
|
0.49 | 99 | r | ssp | deerweed | Lotus scoparius | 5 / 1 | 7
|
0.50 | | r | | Several very old elderberries, Sambucus mexicana.
|
0.54 | | r | | Jct. other end of shortcut trail between the two branches.
|
0.56 | | | | End this loop section. Continue straight on previously-walked section.
|
0.58 | | | | Drainage from east bank on right; go left here to get on west side of mitigation stream.
|
0.59 | | | | Go right on the mulched area, staying as close to the stream as possible.
|
0.60 | | r | | red goosefoot, Chenopodium rubrum?
|
0.68 | 100 | r | | fuchsia-flowered gooseberry | Ribes speciosum | 1 / 1 | 1
|
0.75 | | | | Dense vegetation forces us to join main path alongside concrete channel.
|
0.79 | 101 | r | | California chicory | Rafinesquia californica | 1 / 1 | 3
|
0.81 | | | | Go right at bridge over concrete channel to reach beginning of hike.
|
0.83 | | r | | Parking lot entrance.
|
0.86 | | r | | Jct. beginning of plant guide; plant guide ends.
|
| | | | Need to locate the following species:
|
| 102 | | | California filago | Filago californica | / |
|
| 103 | | | *little horseweed | Conyza bonariensis | / |
|
| 104 | | | *bristly ox-tongue | Picris echioides | / |
|
| 105 | | ~ | cotton-batting plant | Gnaphalium stramineum | / |
|
| 106 | | ~ | purple everlasting | Gnaphalium purpureum | / |
|
| 107 | | | Bishop's lotus | Lotus strigosus | / |
|
| 108 | | | strigose sun-cup | Camissonia strigulosa | / |
|
| 109 | | | chia | Salvia columbariae | / |
|
| 110 | | sp | peppergrass 1 | Lepidium sp. | / |
|
| 111 | | sp | peppergrass 2 | Lepidium sp. | / |
|
| 112 | | sp | cultivated verbena | Verbena sp. | / |
|
| 113 | | | *lesser swine cress | Coronopus didymus | / |
|
| 114 | | sp | grape
|
http://tchester.org/sgm/plants/guides/lower_arroyo_seco.html