Plant Guide to Sawmill Trail, Santa Rosa Mountains 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
Botanical Trip Reports
The Plant Guide
Comments On Specific Species
Introduction The Sawmill Trail is a 5.3 mile old road with 2,220 feet of elevation gain, beginning at the intersection with the Cactus Spring Trail, which is 0.2 miles from the Sawmill Parking Lot. The total hike from the parking lot is thus 5.7 miles with 2,250 feet of elevation gain and loss. Directions to the parking lot are in the Guide to the Cactus Spring Trail.
This trail travels from the Upper Plateau botanical area, with many desert plants, through the Lower Montane botanical area, with chaparral, and ends at the lower portion of the High Montane Slopes, in the pine forest.
Highlights of This Trail Some of the botanical highlights of this trail are:
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 97 trails in our database when this histogram was made; 2 of those trails, including this one, are in this area of Santa Rosa Mountain. A number of "2" means the taxon has only been found on this trail among the trails in our database; numbers of "2" or smaller may indicate taxa found only in this area of Santa Rosa Mountains.
Number of Trails
Containing A TaxonNumber Of Taxa
On This Trail% of Taxa
On This Trail1 2 2% 2 10 12% 3 7 8% 4 9 11% 5 9 11% 1-5 37 44% 6-10 15 18% 11-15 6 7% 16-20 5 6% 21-25 9 11% 26-30 3 4% 31-35 3 4% 36-40 2 2% 41-45 1 1% 46-50 1 1% 51-55 0 0% 56-60 2 2% Total Taxa 84 100% We found 4 additional species not in the above table, since they have not been fully identified yet. The unidentified ones are marked with ? or sp in the id? column in the guide, and have no entries in the #all column.
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" 11/24/2006 1 82 1 8 17 1 12/6/2006 2 82 0 5 19 0 12/6/2006 2 89 0 6 19 0 The fieldwork on 11/24/06 was only to mile 2.91, and on 12/6/06 to mile 4.77.
There are two entries for 12/6/06; the first is to mile 2.91, so the numbers can be compared to the 11/24/06 trip.
We thank James Dillane and Jane Strong for help in identifying the dead specimens of Lupinus latifolius var. parishii, and Jane Strong and Bob Allen for identifying the scale insects on the Quercus cornelius-mulleri.
Botanical Trip Reports
The Plant Guide The mileages in the guide have been fit to Topo!, which should be fairly good since this is an old road.
Version for printing, without lines and other text on this page: html (5 pages) or pdf Clickbook booklet (2 double-sided pages). (See printing instructions for an explanation of these options)
Mile S # id? Common Name Latin Name #here #all 0.00 Begin guide at signed intersection with Cactus Spring Trail; elevation ~4020 feet (1225 m) 0.00 b 1 matchweed Gutierrezia sarothrae+ 99 / 9 13 0.00 r (sugar bush, Rhus ovata; red shanks, Adenostoma sparsifolium) 0.00 b 2 sp Vasey's prickly-pear? Opuntia vaseyi?+ 20 / 9 0.00 b 3 desert lotus Lotus rigidus 5 / 1 5 0.00 r 4 desert needlegrass Achnatherum speciosum 99 / 9 4 0.00 l (desert scrub oak, Quercus cornelius-mulleri) 0.00 b 5 chaparral yucca Yucca whipplei 20 / 9 34 0.00 r (Mohave yucca, Yucca schidigera) 0.00 l 6 Acton's encelia Encelia actoni 3 / 1 3 0.00 l 7 bur-ragweed Ambrosia acanthicarpa 5 / 2 20 0.00 b 8 California buckwheat Eriogonum fasciculatum var. polifolium 99 / 9 21 0.00 b 9 ~ narrowleaf goldenbush Ericameria linearifolia 99 / 9 6 0.00 r 10 *downy brome Bromus tectorum 99 / 9 25 0.00 r 11 red shanks Adenostoma sparsifolium 99 / 9 4 0.00 r 12 Parry's nolina Nolina parryi 30 / 9 2 0.01 r 13 Pima rhatany Krameria erecta 1 / 1 5 0.03 r 14 ~ bristly bird's beak Cordylanthus rigidus ssp. setigerus 99 / 9 31 0.03 r (California juniper, Juniperus californica; pinyon pine, Pinus monophylla) 0.04 r (Mojave prickly-pear, Opuntia erinacea var. erinacea; ~desert apricot, ~Prunus fremontii; hollyleaf redberry, Rhamnus ilicifolia; desert agave, Agave deserti) 0.04 r 15 Engelmann's hedgehog cactus Echinocereus engelmannii 5 / 5 7 0.05 r 16 desert agave Agave deserti 20 / 9 6 0.05 r 17 dead cupped-leaf ceanothus Ceanothus greggii var. perplexans+ 99 / 9 9 0.06 r 18 Mojave prickly-pear Opuntia erinacea var. erinacea 30 / 9 2 0.07 l 19 Wright's buckwheat Eriogonum wrightii var. membranaceum 20 / 5 4 0.09 r 20 chamise Adenostoma fasciculatum 20 / 9 38 0.12 r (western bernardia, Bernardia myricifolia; dense mistletoe, Phoradendron densum, on juniper) 0.14 r First live cupped-leaf ceanothus, Ceanothus greggii var. perplexans 0.15 r 21 desert scrub oak Quercus cornelius-mulleri 99 / 9 3 0.15 r 22 California juniper Juniperus californica 20 / 9 4 0.15 r 23 oak mistletoe Phoradendron villosum 1 / 1 7 0.15 l Jct. road to Dolomite Mine 0.16 r 24 sugar bush Rhus ovata 30 / 9 28 0.17 r 25 ~ *red brome Bromus madritensis ssp. rubens 20 / 2 58 0.18 r 26 birch-leaf mountain-mahogany Cercocarpus betuloides var. betuloides 3 / 3 22 0.23 l 27 pinyon pine Pinus monophylla 1 / 1 4 0.23 Road curves right 0.33 r 28 western bernardia Bernardia myricifolia 3 / 3 4 0.33 Road curves left in a big sweeping curve 0.39 r 29 desert apricot Prunus fremontii 10 / 2 5 0.39 b 30 white sage Salvia apiana 10 / 2 40 0.41 r Lots of exposed rocks, including a balancing rock on top 0.42 r 31 bigberry manzanita Arctostaphylos glauca 30 / 9 12 0.42 r (pancake prickly-pear, Opuntia chlorotica; beavertail cactus, Opuntia basilaris var. basilaris; wide-leaved rock goldenbush, Ericameria cuneata var. spathulata) 0.42 Road curves right 0.42 b 32 smoothleaf yerba santa Eriodictyon trichocalyx var. lanatum 50 / 9 5 0.42 r (bird's-foot fern, Pellaea mucronata var. mucronata) 0.42 r 33 sp popcorn flower Cryptantha sp. / 0.42 r 34 desert plantain Plantago ovata 20 / 1 6 0.43 r 35 ~ little-leaved chaparral beard-tongue Keckiella antirrhinoides var. microphylla 5 / 1 3 0.43 r 36 desert globemallow Sphaeralcea ambigua var. rugosa 20 / 4 2 0.43 r 37 southern California silver-lotus Lotus argophyllus var. argophyllus 50 / 9 4 0.44 (Beautiful stacked rocks with a honking pancake prickly-pear, Opuntia chlorotica) 0.44 l 38 Nealley three-awn Aristida purpurea var. nealleyi 20 / 9 3 0.44 r Flat area; road curves left 0.45 r 39 *saltcedar Tamarix ramosissima 3 / 3 4 0.46 r 40 six-weeks three-awn Aristida adscensionis 5 / 1 7 0.47 r 41 bird's-foot fern Pellaea mucronata var. mucronata 3 / 1 32 0.47 r 42 pancake prickly-pear Opuntia chlorotica 2 / 2 2 0.48 r 43 San Jacinto beardtongue Penstemon clevelandii var. connatus 30 / 9 2 0.48 Open old gate; road curves right 0.48 b 44 thick-leaved yerba santa Eriodictyon crassifolium var. crassifolium 20 / 5 9 0.48 l (Parish's viguiera, Viguiera parishii) 0.49 l 45 desert baccharis Baccharis sergiloides 5 / 1 3 0.49 l 46 hollyleaf cherry Prunus ilicifolia ssp. ilicifolia 5 / 2 14 0.49 l 47 ~ desert-willow Chilopsis linearis ssp. arcuata 1 / 1 5 0.49 r Two water tanks storing water stolen from the plants in the Deep Canyon drainage; with outflow tubing watering the desert-willow and Lotus argophyllus 0.49 l 48 beavertail cactus Opuntia basilaris var. basilaris 2 / 2 11 0.49 r 49 catclaw Acacia greggii 1 / 1 7 0.54 r 50 golden yarrow Eriophyllum confertiflorum var. confertiflorum 10 / 2 60 0.54 r 51 woolly Indian paintbrush Castilleja foliolosa 10 / 1 8 0.55 r 52 ~ California thistle Cirsium occidentale var. californicum 20 / 5 14 0.56 Road curves left 0.56 r 53 sp Phacelia Phacelia sp. 3 / 1 0.56 r Take use trail to waterfall and then return to this point 0.56 b 54 sp California brickellbush Brickellia californica 10 / 1 30 0.56 b 55 white mugwort Artemisia ludoviciana ssp. albula 20 / 2 5 0.56 r 56 sp dodder Cuscuta sp. 1 / 1 0.56 l 57 rigid hedge-nettle Stachys ajugoides var. rigida 10 / 1 19 0.56 b 58 sacred datura Datura wrightii 2 / 1 19 0.56 b 59 ~ western false-indigo Amorpha fruticosa 10 / 1 2 0.56 b 60 ~ Parish's lupine Lupinus latifolius var. parishii 10 / 1 6 0.56 b 61 *tumble pigweed Amaranthus albus 10 / 1 15 0.56 b 62 horseweed Conyza canadensis 10 / 1 43 0.57 r 63 deergrass Muhlenbergia rigens 10 / 1 24 0.57 b 64 wild tarragon Artemisia dracunculus 10 / 1 23 0.57 l 65 red willow Salix laevigata 1 / 1 25 0.58 r 66 *rabbits-foot grass Polypogon monspeliensis 10 / 1 28 0.58 l 67 common monkeyflower Mimulus guttatus 10 / 1 17 0.58 l 68 iris-leaved rush Juncus xiphioides 10 / 1 3 0.58 69 ~ one-sided bluegrass Poa secunda ssp. secunda 20 / 2 24 0.58 End use trail at waterfall; return to road 0.60 Back on road now 0.60 Cross Deep Canyon creek; elevation ~4270 feet (1300 m) 0.60 l 70 ~ Davidson's buckwheat Eriogonum davidsonii 5 / 1 20 0.61 r 71 Santa Rosa Mtns. linanthus Linanthus floribundus ssp. hallii 20 / 3 2 0.61 r 72 hollyleaf redberry Rhamnus ilicifolia 2 / 2 47 0.61 r The Rhamnus ilicifolia is side by side with a Prunus ilicifolia 0.62 r 73 ~ perennial rock-cress Arabis perennans 30 / 9 5 0.62 r 74 wide-leaved rock goldenbush Ericameria cuneata var. spathulata 2 / 2 1 0.66 Road curves right at ridge 0.71 r 75 Mohave yucca Yucca schidigera 5 / 5 9 0.79 Upper side of leaf blades for Quercus cornelius-mulleri are beginning to change from gray-green to green at this altitude 0.81 Cross drainage 0.87 Cross small drainage 0.94 Cross very small drainage 76 ~ Parish's needlegrass Achnatherum parishii+ 99 / 9 9 1.04 r Check for Poa fendleriana 1.07 Cross small drainage 1.15 Middle of big switchback right; elevation 4480 feet (1365 m) 1.21 l ~ (narrow-leaved brickellia, Brickellia oblongifolia var. linifolia) 1.22 Cross small drainage 1.27 Switchback left 1.42 r ~ (giant four o'clock, Mirabilis multiflora var. pubescens) 1.43 Switchback right; good view into drainage to east 1.53 l 77 prickly poppy Argemone munita 5 / 2 8 1.68 Switchback left; elevation ~4660 feet (1420 m) 1.85 Road curves right 90° 1.89 Road gradually curves left 1.98 Switchback right; elevation 4840 feet (1475 m) 2.12 l 78 ~ narrow-leaved brickellia Brickellia oblongifolia var. linifolia 20 / 5 2 2.12 l 79 ~ squirreltail Elymus elymoides ssp. elymoides 1 / 1 5 2.18 l 80 ~ desert monardella Monardella nana ssp. arida 1 / 1 2 2.18 l 81 ~ slender bedstraw Galium angustifolium ssp. gracillimum 1 / 1 5 2.28 Switchback left; good view of drainage to west; elevation ~4940 feet (1505 m) 2.53 l 82 ~ giant four o'clock Mirabilis multiflora var. pubescens 3 / 2 3 2.57 Road curves right 2.61 Road curves left 2.68 Switchback right; elevation 5160 feet (1573 m) 2.83 Long switchback left at ridge; road becomes quite steep for a short section 2.87 l Jct. old section of road; road curves right 2.91 l Jct. other end of old section of road 2.94 r Infestation of yellow scale insect with hard shells on oak; view of Santa Rosa Mountain to southwest 2.95 Switchback left; elevation 5320 feet (1622 m) 3.05 Road curves right 3.14 Road curves left 3.18 r 83 ashy silk tassel Garrya flavescens 3 / 2 8 3.19 Switchback right; elevation 5420 feet (1652 m) 3.29 l 84 desert Parry manzanita Arctostaphylos parryana ssp. deserticum 30 / 9 1 3.34 Road curves left at ridge 3.39 Road curves right at small drainage 3.49 Jct. road; switchback left; elevation ~5580 feet (1700 m) 3.54 l 85 sp San Jacinto buckwheat? Eriogonum apiculatum? 20 / 2 3.66 Road curves right 90° 3.71 Road curves left 3.77 Road curves right and travels along lip of drainage to east 3.89 Road curves left 90° at small drainage 3.95 Switchback right; elevation 5800 feet (1768 m) 4.06 Road curves right to follow ridgeline 4.14 Long switchback left at ridgeline; view of benches to west; elevation ~5845 feet (1782 m). Road levels out and descends slightly to a saddle 4.21 Saddle; local low point 4.54 Long switchback right; elevation 6000 feet (1829 m) 4.56 l Jct. use trail 4.60 b 86 canyon live oak Quercus chrysolepis 30 / 9 25 4.66 Cross very small drainage 4.69 l 87 pink-bracted manzanita Arctostaphylos pringlei ssp. drupacea 1 / 1 4 4.70 l 88 Jeffrey pine Pinus jeffreyi 3 / 1 24 4.73 r Flat area; view of kiln; switchback left; elevation 6080 feet (1853 m) 4.77 r 89 San Jacinto Mtns. bedstraw Galium angustifolium ssp. jacinticum+ 10 / 1 2 4.77 Plant Guide ends here 4.88 Switchback right; elevation ~6150 feet (1875 m) 4.98 Trail curves left at broad ridge 5.11 Switchback right at drainage; elevation 6240 feet (1902 m) 5.33 Road ends at kiln; elevation 6240 feet (1902 m)
Comments On Specific Species Gutierrezia sarothrae. See note here.
Opuntia vaseyi?. See note here.
Ceanothus greggii var. perplexans. A very high percentage of these plants are dead, presumably the victims of the drought from 1995 to 2004. Zabriskie (1979, page 103) has a picture of these slopes covered with live plants in beautiful full bloom. I will try to reproduce that photograph in spring 2007.
The first dead specimen on the trail is noted, as is the first live specimen.
Achnatherum parishii. No seeds were present to confirm the identification, so we could not identify any given specimen as being this species, due to confusion with A. speciosum. However, this species is common along the Cactus Spring Trail and is surely common here as well.
Poa fendleriana is also probably present here, but we haven't put this in the field guide since we have no positive identifications yet in this area.
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Copyright © 2006 by Tom Chester and Paula Knoll.
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Comments and feedback: Tom Chester
Updated 14 December 2006.