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2016 Field Trip Report: Tejon Ranch [6/11-12/2016]

  • Trip Recap
  • Plants Seen
  • Trip Recap
  • Plants Seen

Trip Recap

"What an incredible trip", seemed to be the reaction of everyone.

During a day and two-thirds 11 CNPS members did a botanical grand tour of this spectacular piece of land, encompassing 270,000 acres or over 200'suare miles. Two of us came up the afternoon before and spent some time with Ellery Mayence, the Senior Ecologist at the Tejon Ranch Conservancy. After some office time and orientation the three of us spent the late Friday afternoon and evening visiting a small portion of the ranch, watching the sunset from the immense grasslands and foothills. Once back at the campground we talked until nearly midnight about the ranch, the plants and the land. 

The next morning we met the rest of the group at the Conservancy headquarters. We were joined for the two days by Nick Jensen, a botanist with The Rancho Santa Ana Botanic Garden who is in his third year of surveying the ranch property and developing of a flora of the area. Nearly one thousand taxa are now on that list. That is almost 20% of all the species known to occur in California, a statistic that may not be repeatable anywhere else in the state.

Eleven of us fit comfortably into a large conservancy van and we headed out for a day that no one would forget. We began by traveling through the Mojave desert at the Southeastern edge of the ranch, visiting a Joshua tree forest and understanding the unique plants and ecology of this arid area. As we travelled up the canyon, edging closer to the mountains we saw our first and only Pronghorn, a male that stood beautifully on a hillside for all of our photographs. A bit further up the canyon we stopped for the hard-to-find little parasitic plant Pholisma arenaria, a couple of pacific diamondback rattlesnakes and other several nice plants.

The scenery was already terrific, but it only got better as we travelled up to the ridge and into the mountains that truly separates two of California's iconic areas, the Mojave Desert and the San Joaquin Valley. It Is a unique area in California that brings all of these biomes together, including the two very different valleys to the east and west, but also the Sierra Nevada mountains and the Peninsular ranges just to the North and South. While in the mountains we made numerous stops to see interesting or rare plants. It was great to have Nick Jensen as our guide, since he knew exactly where to find just about every one of these plants. As we drove and walked during the day, we probably said to Nick, "what's this" at least a hundred times, and he always obliged with a curteous and accurate answer.

Nick and Ellery took us to a recently discovered colony of Peirson's lupine (only the second location in the world and over 60 miles from the other location in the San Gabriel Mountains) and to an undescribed new species of Caluanthus. Nick is a Caulanthus specialist and is currently working on this plants and hopes to publish it as a new species in the near future. We stopped for lunch on a grassy ridge high in the mountains and ate and talked under a large spreading Kellogg oak. Blooming Calochortus venusta accompanied us as we ate. Not far away a California condor was seen soaring high over a ridge.

We very slowly descended the mountains along a north facing slope that afforded more wonderful discoveries of plants in full bloom, including Sedum spathulifolium, Allium peninsulare, Tritileia ixioides, Collomia grandiflora, the very rare Eriophyllum lanatum var. hallii, thousands of Clarkia cylindrica and countless others. We saw at least six species of Clarkia during the day. One of the most exciting stops for the group was to a colony of beautiful Acmispon grandiflorus, which we all agreed should be in horticulture. In the lower foothills we stopped to pay visit to a Native American site, with excellent petroglyphs (rock art) and well developed motreros.

Our travels during the day (80 miles in total) took us on a Grand Tour of the ranch as we traversed from one side to the other, from the desert floor, up into the mountains and conifer forests at over 6,000 feet, across flatlands, through the valleys, into grasslands and back down to the basin. Few people have ever been able to do a trip like this and see this much variety in a single day. What a day. We were grateful.

A few folks headed off to a motel while the rest of us camped under the stars on the ranch. While we snacked that evening we visited with our friends, made new friends and talked even more about the land, the need for conservation, our travels and of course our easy solutions to most of the worlds issues.

The second day was a visit to a small cluster of a recently discovered vernal pool complex in a foothill area of the ranch. In the now dry pools were growing an unidentified button celery (Eryngium species). Nick took voucher samples and worked on the plants taxonomy as we prowled for additional interesting plants in the oak woodland and grasslands. Following many more stops and plants, our lunch stop was at a beautiful riparian area with flowing water in the deep recesses of Tejon Canyon. We munched on our sandwiches and snacks as we eagerly investigated the interesting plants through the shaded, moist canyon.

We sadly departed on Sunday afternoon, our cameras filled with photographs, our tablets filled with notes and our minds overflowing with beautiful scenes and wonderful experiences that will stay forever.

many, many thanks to Ellery Mayence and Nick Jensen for giving us their time and knowledge during this trip. Also many thanks to OC CNPS field trip committee member Kevin Davey who set this entire trip up over the course of many month, numerous emails and handled all of the logistics. Volunteer members like Nick are a what makes CNPS such a great organization.

We are already thinking about a return trip next year. Maybe this time in March. Wow! 

(At least 206 plant taxa were identified during the trip. For a complete list of these plants, click the "Plants Seen" tab.)

Plants Seen

Tejon Ranch Plant List, OC CNPS Field Trip, 6-11 and 12, 2016
Assisted by Ellery Nayence (Sr. Ecologist, Tejon Ranch Conservancy) and Nick Jensen (Rancho Santa Ana Botanic Garden)
Adoxaceae
Sambucus nigra subsp. caerulea
Agavaceae
Chlorogalum pomeridianum var. pomeridianum
Yucca brevifolia
Alliaceae
Allium peninsulare var. peninsulare
Amaranthaceae
Amaranthus albus
Amaranthus blitoides
Anacardiaceae
Toxicodendron diversilobum
Apiaceae
Daucus pusillus
Eryngium sp.
Lomatium dasycarpum
Osmorhiza brachypoda
Apocynaceae
Apocynum cannabinum
Asclepias californica
Asclepias eriocarpa
Asclepias fascicularis
Arecaceae
Washingtonia filifera
Asteraceae
Acamptopappus sphaerocephalus var. hirtellus
Achillea millefolium
Agoseris grandiflora
Artemisia dracunculus
Artemisia tridentata subsp. tridentata
Artemisia tridentata subsp. vaseyana
Baccharis glutinosa
Baccharis salicifolia subsp. salicifolia
Bassia hyssopifolia
Carduus pycnocephalus subsp. pycnocephalus
Centromadia fitchii
Cirsium occidentale var. venustum
Cirsium vulgare
Encelia actoni
Ericameria linearifolia
Ericameria nauseosa var. hololeuca
Ericameria nauseosa var. mohavensis
Eriophyllum confertiflorum var. confertiflorum
Eriophyllum lanatum var. hallii
Gutierrezia californica
Helianthus annuus
Heterotheca grandiflora
Holocarpha heermannii
Lactuca serriola
Lasthenia gracilis
Layia glandulosa
Lessingia glandulifera var. peirsonii
Madia elegans
Senecio flaccidus var. douglasii
Silybum marianum
Stephanomeria exigua subsp. coronaria
Tragopogon dubius
Boraginaceae
Amsinckia sp.
Cryptantha sp.
Eriodictyon parryi
Eriodictyon trichocalyx var. trichocalyx
Heliotropium curassavicum var. oculatum
Phacelia sp.
Phacelia imbricata var. imbricata
Phacelia ramosissima
Pholisma arenarium
Pholistoma auritum var. auritum
Brassicaceae
Caulanthus species
Erysimum capitatum var. capitatum
Hirschfeldia incana
Lepidium latifolium
Nasturtium officinale
Sisymbrium officinale
Sisymbrium orientale
Cactaceae
Opuntia basilaris var. basilaris
Caprifoliaceae
Symphoricarpos mollis
Caryophyllaceae
Silene laciniata subsp. californica
Stellaria media
Chenopodiaceae
Atriplex lentiformis ssp. breweri
Chenopodium album
Salsola tragus
Convolvulaceae
Calystegia occidentalis subsp. fulcrata
Convolvulus arvensis
Crassulaceae
Sedum spathulifolium
Cucurbitaceae
Cucurbita foetidissima
Cupressaceae
Calocedrus decurrens
Juniperus californica
Cyperaceae
Schoenoplectus americanus
Datiscaceae
Datisca glomerata
Dryopteridaceae
Dryopteris arguta
Polystichum imbricans subsp. curtum
Ephedraceae
Ephedra nevadensis
Equisetaceae
Ericaceae
Arctostaphylos parryana subsp. parryana
Euphorbiaceae
Croton setiger
Euphorbia albomarginata
Euphorbia polycarpa
Fabaceae
Acmispon americanus var. americanus
Acmispon grandiflorus var. grandiflorus
Astragalus purshii var. tinctus
Hosackia crassifolia var. crassifolia
Lupinus sp.
Lupinus excubitus var. austromontanus
Lupinus microcarpus var.
Lupinus peirsonii
Medicago polymorpha
Melilotus indicus
Prosopis glandulosa var. torreyana
Robinia pseudoacacia
Trifolium sp.
Vicia americana subsp. americana
Fagaceae
Quercus chrysolepis
Quercus douglasii
Quercus john-tuckeri
Quercus kelloggii
Quercus lobata
Geraniaceae
Erodium brachycarpum
Erodium cicutarium
Grossulariaceae
Ribes quercetorum
Ribes roezlii var. roezlii
Lamiaceae
Marrubium vulgare
Salvia columbariae
Trichostema lanceolatum
Liliaceae
Calochortus venustus
Loasaceae
Mentzelia veatchiana
Lythraceae
Lythrum californicum
Malvaceae
Fremontodendron californicum
Montiaceae
Calyptridium monandrum
Claytonia parviflora subsp. parviflora
Nyctaginaceae
Mirabilis sp.
Oleaceae
Olea europaea
Onagraceae
Camissonia sp.
Clarkia cylindrica subsp. cylindrica
Clarkia heterandra
Clarkia purpurea ssp.
Clarkia rhomboidea
Clarkia speciosa subsp. polyantha
Clarkia unguiculata
Oenothera californica subsp. californica
Orobanchaceae
Castilleja exserta subsp. exserta
Papaveraceae
Argemone munita
Ehrendorferia chrysantha
Eschscholzia californica
Phrymaceae
Erythranthe sierrae (or Mimulus constrictus?)
Mimulus guttatus
Mimulus pilosus
Pinaceae
Abies concolor
Pinus jeffreyi
Pinus monophylla
Plantaginaceae
Collinsia heterophylla var. heterophylla
Keckiella breviflora
Penstemon centranthifolius
Penstemon grinnellii var. scrophularioides
Platanaceae
Platanus racemosa
Poaceae
Arundo donax
Avena barbata
Avena fatua
Bromus carinatus var. carinatus
Bromus diandrus
Bromus madritensis subsp. rubens
Bromus tectorum
Cynodon dactylon
Distichlis spicata
Elymus condensatus
Elymus glaucus subsp. glaucus
Festuca perennis
Hordeum marinum
Koeleria macrantha
Poa bulbosa
Polypogon monspeliensis
Polypogon viridis
Stipa cernua
Stipa speciosa
Polemoniaceae
Collomia grandiflora
Eriastrum densifolium ssp.
Eriastrum sapphirinum subsp. sapphirinum
Gilia capitata subsp. abrotanifolia
Leptosiphon aureus subsp. aureus
Leptosiphon parviflorus
Polygonaceae
Chorizanthe xanti var. xanti
Eriogonum angulosum
Eriogonum baileyi var. baileyi
Eriogonum fasciculatum var. polifolium
Persicaria lapathifolia
Rumex crispus
Pteridaceae
Pellaea andromedifolia
Ranunculaceae
Delphinium gracilentum
Delphinium patens
Frangula californica subsp. cuspidata
Rosaceae
Cercocarpus betuloides var. betuloides
Drymocallis glandulosa var. glandulosa
Prunus virginiana var. demissa
Rosa californica
Rubus ursinus
Rubiaceae
Galium aparine
Salicaceae
Populus fremontii subsp. fremontii
Salix gooddingii
Salix laevigata
Salix lasiolepis
Sapindaceae
Acer negundo
Aesculus californica
Saururaceae
Anemopsis californica
Saxifragaceae
Lithophragma sp.
Scrophulariaceae
Scrophularia californica
Scrophularia desertorum
Verbascum thapsus
Selaginellaceae
Selaginella bigelovii
Simaroubaceae
Solanaceae
Datura wrightii
Nicotiana quadrivalvis
Solanum douglasii
Tamaricaceae
Tamarix ramosissima
Themidaceae
Triteleia ixioides subsp. scabra
Urticaceae
Urtica dioica subsp. holosericea
Urtica urens
Viscaceae
Phoradendron leucarpum subsp. tomentosum
Vitaceae
Vitis girdiana
Zannichelliaceae
Zannichellia palustris
Zygophyllaceae
Larrea tridentata
Tribulus terrestris
 
206 Taxa
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