Plant Guide to Los Jilgueros Trail This is a working list, about which we make no guarantees at all until we officially release it. Use at your own risk!
Introduction and Explanation of Plant Trail Guides
Introduction
Highlights of This Trail
Fieldwork Dates and Summary of List Changes With Time
The Plant Guide
Comments On Specific Species
Introduction
Highlights of This Trail Number of Unique Taxa On This Trail
The following histogram gives the number of trails in our database that contain each taxon on this trail. We had 30 trails in our database when this histogram was made. A number of "1" means the taxon has only been found on this trail among the trails in our database.
Number of Trails
Containing A TaxonNumber Of Taxa
On This Trail% of Taxa
On This Trail1 20 21% 2 10 10% 3 9 9% 4 11 11% 5 8 8% 6 8 8% 7 6 6% 8 1 1% 9 3 3% 10 3 3% 11 3 3% 12 5 5% 13 2 2% 14 2 2% 15 1 1% 16 3 3% 17 1 1% 18 0 0% 19 0 0% 20 1 1% Total Taxa 97 100% We found 16 additional species not in the above table, since they have not been identified yet. The unidentified ones are marked with ? or sp in the id? column in the guide.
Fieldwork Dates and Summary of List Changes With Time The following table gives the dates the trail was walked and taxa recorded. After each visit, the table gives the total number of taxa on the list and the breakdown of the taxa without positive identification. See Explanation of Plant Trail Guides to understand the symbols below.
Visit Date Visit # # taxa # "?" # "sp" # "~" # "ssp" 10/8/2002 1 83 12 6 9 1 1/13/2003 2 113 8 8 12 1
The Plant Guide Version for printing, without lines and other text on this page (4 pages)
Mile S # id? Common Name Latin Name #here #all 0.00 South entrance with large parking area. Begin trail on northeast end of parking area. 0.00 b 1 sp *cheeseweed Malva parviflora / 2 0.00 b 2 *Australian brass-buttons Cotula australis / 4 0.00 r 3 *white-stemmed filaree Erodium moschatum / 6 0.00 r 4 ? *redstem filaree Erodium cicutarium / 17 0.00 r 5 *shortpod mustard Hirschfeldia incana / 13 0.00 l Sign: "Welcome ....". 0.00 l 6 California encelia Encelia californica / 3 0.00 r 7 coast live oak Quercus agrifolia var. agrifolia / 12 0.00 l 8 *foxtail barley Hordeum murinum ssp. leporinum / 9 0.00 l 9 white sage Salvia apiana / 14 0.00 l 10 *London rocket Sisymbrium irio / 1 0.00 11 California poppy Eschscholzia californica / 7 0.00 l Display case with FLC plant guide and other info. 0.00 r 12 *purple wild radish Raphanus sativus / 3 0.00 r 13 ~ *knotweed Polygonum arenastrum / 13 0.00 r 14 *foxtail barley Hordeum murinum ssp. glaucum / 1 0.00 r 15 *bermuda grass Cynodon dactylon / 6 0.00 16 sp *wild oats Avena sp. / 0.01 r 17 peninsular sycamore Platanus racemosa var. wrightii / 2 0.02 r 18 coastal goldenbush Isocoma menziesii var. vernonioides / 7 0.02 19 ? needlegrass? Nassella sp.? / 0.02 r 20 velvet ash Fraxinus velutina+ / 2 0.02 r 21 ~ *Crete weed Hedypnois cretica / 5 0.02 r 22 *California burclover Medicago polymorpha / 12 0.03 l 23 Cleveland sage Salvia clevelandii+ / 2 0.03 24 *horehound Marrubium vulgare / 9 0.03 l 25 lemonade berry Rhus integrifolia+ / 6 0.03 l 26 California sagebrush Artemisia californica / 16 0.03 l Jct. path on left. 0.04 r 27 Engelmann oak Quercus engelmannii / 7 0.05 l Cleveland sage Salvia clevelandii+ / 0.06 r 28 *Mexican palo verde Parkinsonia aculeata / 1 0.07 29 *tumble pigweed Amaranthus albus / 1 0.08 l 30 California buckwheat Eriogonum fasciculatum var. foliolosum / 14 0.08 r 31 *Mexican tea Chenopodium ambrosioides / 3 0.08 32 *field bindweed Convolvulus arvensis / 1 0.09 r Teresa West bench. 0.10 33 *fennel Foeniculum vulgare / 5 0.10 l (Field of oriental mustard, Sisymbrium orientale, or London rocket, Sisymbrium irio: need to check id) 0.10 r Harry F. West bench; Jct. path on right. 0.11 r Nancy Baumgartner bench. 0.12 34 *Russian thistle Salsola tragus / 10 0.12 b 35 blue elderberry Sambucus mexicana+ / 16 0.14 l Rocks on left contain the following two taxa: 0.14 l 36 California chalk lettuce Dudleya pulverulenta ssp. pulverulenta / 5 0.14 l 37 ssp showy penstemon Penstemon spectabilis var. spectabilis / 4 0.14 l Huge elderberry, Sambucus mexicana. 0.14 38 western sycamore Platanus racemosa / 7 0.14 r 39 western redbud Cercis occidentalis / 4 0.14 40 sacred datura Datura wrightii / 5 0.15 r Warren and Esther Whitlock bench 0.15 (Check to make sure the white wild radish here is still Raphanus sativus.) 0.15 41 stinking gourd Cucurbita foetidissima / 2 0.18 42 ~ *curly dock Rumex crispus / 5 0.19 43 ~ Indian milkweed Asclepias eriocarpa / 4 0.19 44 sp Lupinus sp. 0.19 l 45 white-flowering currant Ribes indecorum / 5 0.20 r Mike Shields bench 0.20 l Kiosk with identified pictures of flowers from Shogo Yamaguchi. 0.20 l 46 ~ annual sunflower Helianthus annuus / 3 0.20 l 47 San Diego mountain mahogany Cercocarpus minutiflorus / 4 0.20 l 48 ~ matilija poppy Romneya coulteri / 1 0.20 l 49 ? hoary nettle Urtica dioica ssp. holosericea / 5 0.21 l 50 common bedstraw Galium aparine / 0.21 r 51 *sow thistle Sonchus oleraceus / 8 0.23 l 52 toyon Heteromeles arbutifolia / 16 0.23 l (tuna, Opuntia ficus-indica) 0.23 l 53 laurel sumac Malosma laurina / 11 0.27 r Jim Hullum bench. 0.31 r 54 western ragweed Ambrosia psilostachya / 10 0.32 Jct. road to left that creates a shorter loop hike if you take it. If so, jump to mile 0.61 below when you get to the road on the west side of the Preserve. 0.32 l 55 ~ *Harding grass Phalaris aquatica / 1 0.34 r 56 *tuna Opuntia ficus-indica / 1 0.34 r Post "5". 0.34 57 seaside heliotrope Heliotropium curassavicum / 3 0.34 b 58 white alder Alnus rhombifolia / 3 0.34 l 59 *bristly ox-tongue Picris echioides / 2 0.35 l 60 yerba mansa Anemopsis californica / 1 0.35 b 61 sp American tule Scirpus americanus / 3 0.35 l 62 red willow Salix laevigata+ / 6 0.35 l 63 arroyo willow Salix lasiolepis / 12 0.36 l 64 *dallis grass Paspalum dilatatum / 1 0.36 (Tree-of-heaven, Ailanthus altissima, on left off path in 2002, removed in 2003.) 0.39 l 65 mule fat Baccharis salicifolia / 12 0.36 66 sp *Carolina canarygrass Phalaris caroliniana / 2 0.36 67 *smilo grass Piptatherum miliaceum / 7 0.36 Jct. path on left. 0.38 r 68 California wild rose Rosa californica / 6 0.38 r 69 ? baby vetch or sweet pea 0.39 Path turns 90 degrees left just south of upper pond. 0.39 r 70 narrowleaf willow Salix exigua / 4 0.39 l 71 California-aster Lessingia filaginifolia var. filaginifolia / 20 0.40 l 72 *pecan Carya illinoensis / 1 0.40 r 73 *olive Olea europaea / 4 0.41 View of upper pond on right. 0.42 74 ~ big leaf mistletoe Phoradendron macrophyllum / 2 0.42 l 75 black willow Salix gooddingii / 3 0.43 r 76 coyote bush Baccharis pilularis / 9 0.43 Jct. path on right leading down to upper pond. 0.45 Cross Ostrich Creek on Arizona crossing. 0.46 r 77 *Chinese pistachio Pistacia chinensis / 1 0.46 Jct. path crossing this trail. 0.46 r Post "3" in grove of Chinese pistachios. 0.47 l 78 coast redwood Sequoia sempervirens / 1 0.47 l 79 horseweed Conyza canadensis / 10 0.48 r Mr. and Mrs. Reed L. Pack and Mr. and Mrs. Robert A. Smith bench. 0.48 r avocado 0.48 r Jct. path to soaring eagle sculpture. 0.49 r 80 ~ *Grevillea 'Canberra Gem' Grevillea rosmarinifolia 'Canberra Gem' / 0.51 r Firescape Garden visible on right, including the hedge of Grevillea and beyond. 0.51 l 81 ? *Chinese flame tree Koelreuteria bipinnata / 1 0.52 r 82 *oleander Nerium oleander / 1 0.52 r 83 *euryops Euryops pectinatus / 1 0.52 r 84 *Mexican bush sage Salvia leucantha / 1 0.52 85 ? *peach tree? 0.52 86 sp barberry Berberis sp. / 0.53 r 87 different pecan? 0.53 r Jct. shaded kiosk with displayed information. Turn left 90°. (Continuing straight leads to the north entrance.) 0.54 l Bill and Jamie Hughes bench in grove of old, tall walnuts and pecans. 0.54 b 88 sp *grove of walnut trees 0.55 r 89 sp *citrus tree 0.55 l Esme Irene Strand and Arthur Edwin Strand bench. 0.57 r 90 *pomegranate Punica granatum / 1 0.59 l Jct. path 0.59 Cross side drainage on wooden bridge. 0.60 Bench. 0.60 r 91 *Peruvian pepper tree Schinus molle / 2 0.60 r Post "3". 0.60 r 92 *Canary Island date palm Phoenix canariensis / 1 0.60 r Post "4". 0.60 r 93 *Bermuda buttercup Oxalis pes-caprae / 4 0.60 r 94 black cottonwood Populus balsamifera ssp. trichocarpa / 4 0.60 r 95 ~ willowherb Epilobium ciliatum ssp. ciliatum / 4 0.60 96 *prickly lettuce Lactuca serriola / 7 0.61 "T" jct with shortcut road (from mile 0.32 above). Turn right 90°. 0.61 l Mexican tea, Chenopodium ambrosioides, with different smell (sweeter to some; more unpleasant to others!) 0.62 Turn left 90° and follow the path immediately alongside S. Mission Road. 0.62 r 97 south coast morning-glory Calystegia macrostegia ssp. intermedia / 1 0.62 l 98 telegraph weed Heterotheca grandiflora / 11 0.63 l 99 *English plantain Plantago lanceolata / 4 0.64 r 100 deerweed Lotus scoparius var. scoparius / 11 0.64 r 101 ? hedge parsley? 0.64 r 102 *little horseweed Conyza bonariensis / 6 0.68 103 *milk thistle Silybum marianum / 5 0.69 104 ~ white everlasting Gnaphalium canescens ssp. microcephalum / 12 0.71 105 *bull thistle Cirsium vulgare / 2 0.72 View of lower pond on left. 0.74 Cross side drainage on wooden bridge. 0.76 106 wild-cucumber Marah macrocarpus var. macrocarpus / 15 0.77 l Post "13"; view of old dam on left. 0.80 r 107 ? unk small plant like a hairy shortpod mustard with a leafy stalk 0.80 r 108 ~ saltgrass Distichlis spicata / 6 0.81 r (Sacred datura, Datura wrightii, here if previous one is dead.) 0.81 Cross side drainage on wooden bridge. 0.82 109 *tree tobacco Nicotiana glauca / 6 0.84 Cross side drainage on Reuben Albert Gilliam wooden bridge. 0.87 l 110 *poison hemlock Conium maculatum / 0.88 Cross side drainage on wooden bridge. 0.90 Turn left onto boardwalk, leaving the traffic on S. Mission Road behind. 0.92 r 111 unk grass like melica imperfecta. 0.94 b 112 rush juncus sp. / 0.94 113 desert wild grape Vitis girdiana / 3 0.94 End boardwalk. Turn right, back to parking area. 0.94 r Frances Loving bench. 0.96 r Max Bearden bench; Display board: "What Good Is A Wetland?"; end trail at parking area.
Comments On Specific Species Fraxinus velutina. Modesto cultivar.
Salvia clevelandii. The first occurrence of this species was dead in 2003. The first live occurrence is also noted, but not numbered as a new species.
Rhus integrifolia. This may be a hybrid with sugar bush, Rhus ovata since the sepals are pink instead of green. We need to check for glands on the sepals.
Sambucus mexicana. These tree/bushes are very tall and very old. A few look to be mostly dead, but still have some live portions.
Salix laevigata. There is actually a small arroyo willow, Salix lasiolepis that occurs just before this species, but it is small and hidden within this tree. Since a large arroyo willow is immediately after this species, we have therefore chosen to not list this small one in the guide.
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Updated 21 January 2003.