Flora of Tahquitz Peak and Red Tahquitz Peak Area, San Jacinto Mountains
Procedure For Compiling The Checklist
Taxa Rejected From The Checklist
This is a very preliminary checklist for the area that includes Tahquitz Peak, Red Tahquitz Peak, the ridgeline between them, and a short ridgeline to the north of Tahquitz Peak. It has been compiled from online vouchers, from fieldwork on 23 and 28 July 2008, and from the portion of our plant trail guides in this area. Most online vouchers have not yet been reviewed for reasonableness.
A few vouchers from the fieldwork (Gayophytum, Juncus and a few grass species) have not yet been determined, and hence are not present in the checklist below. Species abundances from the plant trail guides have not yet been added below.
Even though this checklist is only very preliminary, we've placed this online for three reasons:
- It will be useful to a number of people;
- It is interesting; and
- Lists have to start with something. With even a preliminary list, botanists can check to see if an observed or vouchered taxon is on the list, and if not, it can be added. Please let us know if you run across a voucher, or see a species, in this area that is not on this list!
The following map shows the location of the floral area targeted here:
The dashed purple line delineates the boundary, which follows roughly the 8200 foot elevation contour. Solid blue lines are trails, each of which have been botanized extensively (see the plant trail guides for each one). Note that the PCT has been rerouted in places from the trail shown on the base map. Dashed blue lines are floristic surveys done once each so far that compiled checklists and estimated plant species abundances. The one near Tahquitz Saddle was done on 23 July 2008; the one at Red Tahquitz was done on 28 July 2008.
The area is shown in this photograph taken by James Dillane from Wellman Divide on 7 August 2007:
The floristic area boundary is only roughly drawn in this picture. Refer to the topographic map above for its precise location. See also picture without labeling, and pictures taken by James Dillane from the south side in Garner Valley on 3 September 2007: with labels and without labels.
The 8200 foot contour was chosen for several reasons:
- It includes all ridgelines that are clearly associated with Tahquitz Peak and Red Tahquitz Peak. The 8400 foot contour includes only a very small area around Tahquitz Saddle, and is discontiguous due to the 8408 foot elevation peak in the northeast portion.
- It cleanly separates the area of the peaks from Little Tahquitz Meadow below 8100 feet, which contains a very different suite of plant species;
The floristic area boundary was modified to be a bit higher than the 8200 foot contour on the north, in order to avoid extending that ridgeline into the Saddle Junction Area. It was modified to be a bit lower along Little Tahquitz Creek, in order to make a clean boundary at the junction of the PCT and Little Tahquitz Valley Trail.
Procedure For Compiling The Checklist
(To be supplied)
Please note the following important caveats about this preliminary Checklist:
- We have not looked at any of the vouchers yet, so we cannot vouch for their determinations. We have checked only the names of the taxa to make sure it was not unreasonable for them to occur here.
- This is a very preliminary first draft Checklist, compiled quickly and without review by other knowledgeable botanists, and so well may contain bonehead errors.
Checklist for Tahquitz and Red Tahquitz Area
The Checklist is sorted first by category - ferns, dicots, and monocots - and then by family and scientific name. The Family and Scientific Name are from the Jepson Manual. An asterisk before the Common Name would indicate a non-native taxon, but all of the taxa found so far here are native.
The fourth column gives information about whether we have observed a given taxon (O), whether it has been vouchered in this targeted area (V), whether it was observed or vouchered from the immediate area of Tahquitz Peak (T), Red Tahquitz Peak (R), or the Tahquitz Saddle Area (S), and whether the taxon is only found in a wet area such as a seep area or along a moist drainage (W).
The last two columns give a rough estimate of the number of plants and the number of locations for each species, for taxa seen in our field surveys of the Red Tahquitz Area (R) and of the Tahquitz Saddle Area (S). Maximum values are 99 plants, and 9 locations. The main intent of this column is to indicate the species for which we found few plants or locations.
See also the list of rejected species given below.
This is a working list, about which we make no guarantees at all until we officially release it. Use at your own risk!
Version for printing, without lines and other text on this page: html (4 pages) or pdf Clickbook booklet (1 double-sided page). (See printing instructions for an explanation of these options)
The checklist has been updated on 10/28/12 to give the # of plants from the following areas:
No. = Ridge north of Tahquitz
WT = White Tahquitz Ridge
TS = Saddle between white and red Tahquitz Ridges
RT = Red Tahquitz Ridge
A V in the # plants column indicates a vouchered species we have not yet seen.
# Fam Scientific Name (*)Common Name # Plants No. WT TS RT 1 Asple Asplenium septentrionale northern spleenwort 11 2 Dryop Cystopteris fragilis brittle bladder fern 1 5 3 Pteri Pellaea mucronata var. californica California cliff-brake 21 4 Dryop Polystichum scopulinum mountain holly fern 2 5 Denns Pteridium aquilinum var. pubescens bracken 50 6 Selag Selaginella asprella bluish spike-moss 5 7 Selag Selaginella watsonii Watson's spike-moss 10 5 1 4 8 Pinac Abies concolor white fir 99 3 99 99 9 Cupre Calocedrus decurrens incense-cedar 1 10 Pinac Pinus contorta ssp. murrayana lodgepole pine 10 18 99 11 Pinac Pinus flexilis limber pine 50 99 2 80 12 Pinac Pinus jeffreyi Jeffrey pine 30 2 30 99 13 Pinac Pinus lambertiana sugar pine 99 18 50 99 14 Acera Acer glabrum var. diffusum mountain maple V 15 Polem Allophyllum divaricatum purple false-gilia 10 16 Aster Antennaria rosea rosy everlasting, pussytoes 10 17 Ranun Aquilegia formosa western columbine 10 20 18 Brass Arabis holboellii Holboell's rock-cress 50 6 19 Brass Arabis platysperma broad-seeded rock-cress 3 10 20 Brass Arabis sparsiflora var. californica California elegant rock-cress 20 21 Visca Arceuthobium cyanocarpum limber-pine dwarf-mistletoe 1 22 Erica Arctostaphylos patula green-leaf manzanita 50 99 5 60 23 Erica Arctostaphylos pringlei ssp. drupacea pink-bracted manzanita 20 24 Aster Artemisia dracunculus wild tarragon 1 25 Aster Artemisia ludoviciana ssp. incompta mountain mugwort 30 26 Oroba Boschniakia strobilacea California groundcone 1 27 Portu Calyptridium monospermum pussy paws 99 30 20 40 28 Portu Calyptridium parryi var. parryi Parry's sand cress 99 29 Scrop Castilleja applegatei ssp. martinii Martin's paintbrush 1 5 20 30 Rhamn Ceanothus cordulatus mountain whitethorn 99 15 10 40 31 Rosac Cercocarpus ledifolius curl-leaf mountain-mahogany 99 25 10 21 32 Cheno Chenopodium atrovirens forest goosefoot 5 25 33 Erica Chimaphila menziesii little prince's pine 1 4 2 10 34 Erica Chimaphila umbellata pipsissewa V 35 Fagac Chrysolepis sempervirens bush chinquapin 99 99 99 99 36 Aster Chrysothamnus nauseosus ssp. bernardinus San Bernardino rubber rabbitbrush 20 1 20 50 37 Borag Cryptantha micrantha purple-root cryptantha 99 38 Brass Draba corrugata var. saxosa Southern California rock draba V 39 Onagr Epilobium canum ssp. latifolium mountain California-fuchsia 50 99 5 60 40 Aster Ericameria cuneata var. cuneata rock goldenbush 3 41 Aster Erigeron breweri var. jacinteus San Jacinto Mtns. daisy 2 10 42 Polyg Eriogonum apiculatum San Jacinto buckwheat 30 20 43 Polyg Eriogonum nudum var. pauciflorum naked buckwheat 5 5 99 44 Polyg Eriogonum saxatile rock buckwheat 50 5 45 Polyg Eriogonum wrightii var. subscaposum Wright's buckwheat 30 46 Aster Eriophyllum confertiflorum var. confertiflorum golden yarrow 99 47 Brass Erysimum capitatum ssp. capitatum western wallflower 40 20 80 48 Eupho Euphorbia palmeri woodland spurge 3 49 Rubia Galium angustifolium ssp. jacinticum San Jacinto Mtns. bedstraw 99 50 Rubia Galium parishii Parish's bedstraw 30 5 51 Onagr Gayophytum oligospermum pinegrove groundsmoke 20 99 52 Saxif Heuchera hirsutissima shaggy-haired alumroot 99 6 5 30 53 Aster Hieracium horridum prickly hawkweed 20 40 5 1 54 Rosac Holodiscus microphyllus var. microphyllus mountain spray 50 1 3 1 55 Aster Hulsea vestita ssp. callicarpha beautiful hulsea 10 10 56 Hyper Hypericum anagalloides tinker's penny 20 57 Rosac Ivesia callida Tahquitz ivesia V 58 Rosac Ivesia santolinoides Sierra mousetail 3 59 Scrop Keckiella rothrockii var. jacintensis San Jacinto Mts. keckiella 99 1 30 99 60 Polem Leptodactylon jaegeri San Jacinto prickly phlox 1 1 5 61 Polem Leptodactylon pungens granite prickly phlox 50 1 10 62 Aster Lessingia filaginifolia var. filaginifolia California-aster 20 63 Fabac Lotus nevadensis var. nevadensis Sierra Nevada lotus 2 64 Fabac Lupinus hyacinthinus San Jacinto lupine 13 10 40 30 65 Fabac Lupinus polyphyllus var. burkei bigleaf lupine 10 66 Scrop Mimulus breweri Brewer's monkeyflower 20 50 67 Scrop Mimulus moschatus musk monkeyflower 40 10 68 Scrop Mimulus pilosus false monkeyflower 20 69 Scrop Mimulus suksdorfii Suksdorf's monkeyflower 50 70 Scrop Mimulus tilingii larger mountain monkeyflower 20 20 71 Lamia Monardella australis southern mountain-monardella 20 1 30 72 Lamia Monardella nana ssp. tenuiflora short-flowered monardella 3 21 73 Scrop Pedicularis semibarbata pine lousewort 50 50 99 74 Scrop Penstemon grinnellii var. grinnellii Grinnell's beardtongue 1 35 75 Scrop Penstemon labrosus San Gabriel beardtongue 50 10 76 Scrop Penstemon rostriflorus beaked penstemon 20 20 77 Hydro Phacelia mutabilis changeable phacelia 50 30 78 Visca Phoradendron pauciflorum fir mistletoe 2 79 Polyg Polygonum douglasii ssp. douglasii Douglas' knotweed 30 80 Rosac Potentilla rimicola cliff cinquefoil 92 53 99 81 Erica Pterospora andromedea pinedrops 6 1 2 82 Erica Pyrola picta white-veined wintergreen 10 83 Fagac Quercus chrysolepis canyon live oak 10 6 5 99 84 Rhamn Rhamnus californica California coffeeberry 20 85 Gross Ribes cereum var. cereum wax currant 2 10 21 86 Gross Ribes nevadense mountain pink currant 5 5 87 Gross Ribes roezlii var. roezlii Sierra gooseberry 1 10 88 Salic Salix scouleriana Scouler's willow 5 1 89 Lamia Salvia pachyphylla rose sage 30 90 Capri Sambucus mexicana blue elderberry 1 91 Caryo Silene parishii Parish's campion 50 85 10 15 92 Caryo Silene verecunda ssp. platyota white catch-fly 10 30 15 93 Aster Solidago californica goldenrod 50 94 Apiac Sphenosciadium capitellatum ranger's buttons 10 1 95 Capri Symphoricarpos rotundifolius var. parishii Parish's snowberry 30 2 50 99 96 Fabac Trifolium monanthum var. grantianum mountain carpet clover 10 97 Viola Viola macloskeyi small white violet 10 98 Erica Arctostaphylos patula X A. pringlei ssp. drupacea hybrid manzanita 1 99 Poace Achnatherum occidentale ssp. occidentale western needlegrass 40 5 5 100 Poace Achnatherum parishii Parish's needlegrass 3 2 30 101 Poace Agrostis idahoensis Idaho bentgrass 20 5 102 Lilia Allium burlewii Burlew's onion 99 99 103 Cyper Carex fracta fragile sheath sedge 40 10 104 Cyper Carex rossii Ross' sedge 5 5 105 Cyper Carex senta swamp sedge 10 106 Cyper Carex subfusca brown sedge 5 10 30 107 Orchi Corallorhiza maculata spotted coralroot 1 108 Poace Elymus elymoides squirreltail 30 1 15 109 Poace Elymus trachycaulus slender wheatgrass 10 110 Poace Glyceria elata tall mannagrass 10 20 111 Poace Poa fendleriana ssp. longiligula Fendler's blue grass 10 112 Poace Trisetum spicatum spike trisetum 5
Taxa Rejected From The Checklist
Taxa Rejected Due To Uncertain Locations
To be supplied. The taxon name is linked to the online voucher record.
Taxa Rejected Due To Probably-Incorrect Determinations
Voucher data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
Copyright © 2008 by Tom Chester, Dave Stith and James Dillane
Permission is freely granted to reproduce any or all of this page as long as credit is given to us at this source:
Comments and feedback: Tom Chester
Last update: 31 July 2008