FLOWERING PLANTS OF PLACERITA CANYON, SAN GABRIEL MTS
Photographs by Michael Charters





Placerita Canyon Natural Area is a lovely woodsy habitat a short way off the 14 freeway in the western portion of the San Gabriel Mountains. It is in a transition zone between the San Gabriel Mountains and the Mojave Desert. This east-west trending canyon contains a number of trails including the main Canyon Trail which extends two miles from the Nature Center to the picnic area at Walker Ranch and beyond to a small waterfall. There are also a couple of trails that lead up the ridges to the south of the main canyon. The Canyon Trail is mostly level, much of it shaded, and it follows seasonal Placerita Creek along its oak, willow and sycamore-lined course. The property was the site of the first documented discovery of gold in California and was sold by the Walker family to the State in 1950. The Nature Center is open Tue-Sun 9-5 but the park itself is open every day from sunrise to sunset. Unlike my other photo galleries, this one includes pictures taken throughout the year. In addition to half a dozen visits in previous years, I will be taking regular trips into different parts of Placerita Canyon.


 
 
 
 
 




Acmispon
 
Strigose lotus
Acmispon strigosus
Fabaceae
(Pea family)
March-June
 
 


Amsinckia
 
Small-flowered fiddleneck
Amsinckia menziesii
Boraginaceae
(Borage family)
April-June
 
 


Antirrhinum
 
Twining snapdragon
Antirrhinum kelloggii
Plantaginaceae
(Plantain family)
March-May
 
 


Arctostaphylos
 
Big-berry manzanita
Arctostaphylos glauca
Ericaceae
(Heath family)
December-March
 
 


Astragalus
 
Santa Barbara milkvetch
 
 


Baccharis
 
Mulefat (L: female flowers; R: male flowers)
Baccharis salicifolia ssp. salicifolia
Asteraceae (Sunflower family)
April-October
 
 


Camissoniopsis
 
Jurupa Hills sun cup
Camissioniopsis ignota
Onagraceae
(Evening primrose family)
March-August
 
 
Sun cup
Camissoniopsis bistorta
Onagraceae
(Evening primrose family)
March-June

Castilleja
 
Martin's paintbrush
Castilleja applegatei ssp. martinii
Orobanchaceae

May-September
 
     
 

Ceanothus
   
Hairy ceanothus (SHRUB)
Ceanothus oliganthus var. oliganthus
Rhamnaceae
(Buckthorn family)
February-April

Chaenactis
 
White pincushion
Chaenactis artemisiifolia
Asteraceae
(Sunflower family)
April-July
 
 


Chenopodium
 
California goosefoot
Chenopodium californicum
Chenopodiaceae (Goosefoot family)
March-June
 
 


Chlorogalum
 
Soap plant
Chlorogalum pomeridianum var. pomeridianum
Agavaceae
(Agave family)
May-July
 
 


Claytonia
 
Miner's lettuce
Claytonia perfoliata
Montiaceae
(Montia family)
January-May
 
 


Cryptantha
 
Large-flowered cryptantha
Cryptantha intermedia var. intermedia
Boraginaceae
(Borage family)
March-July
 
 


Delphinium
 
Spreading larkspur
Delphinium patens ssp. hepaticoideum
Ranunculaceae
(Buttercup family)
April-May
 
 


Dichelostemma
 
Blue dicks
Dichelostemma capitatum ssp. capitatum
Themidaceae
(Brodiaea family)
March-May
 
 


Dudleya
 
Chalk dudleya
Dudleya pulverulenta
Crassulaceae
(Stonecrop)
May-July
 
 
Lanceleaf dudleya
Dudleya lanceolata
Crassulaceae
(Stonecrop)
May-July

Emmenanthe
 
Whispering bells
Emmenanthe penduliflora var. penduliflora
Boraginaceae
(Borage)
April-July
 
 


Eriogonum
 
California wild buckwheat
Eriogonum fasciculatum var. polifolium
Polygonaceae
(Buckwheat family)
April-November
 
 


Eriophyllum
 
Golden yarrow
Eriophyllum confertiflorum var. confertiflorum
Asteraceae
(Sunflower family)
March-August
 
 


Erysimum
 
Western wallflower
Erysimum capitatum var. capitatum
Brassicaceae
(Mustard family)
March-July
 
 


Eschscholzia
   
Tufted poppy, Collarless California poppy
Eschscholzia caespitosa
Papaveraceae
(Poppy family)
March-June
V
Fraxinus
 
California ash
Fraxinus dipetala
Oleaceae
(Olive family)
March-June
 
 


Gilia
 
Chaparral gilia
Gilia angelensis
Polemoniaceae
(Phlox family)
March-May
 
 


Hazardia
 
Sawtooth goldenbush
Hazardia squarrosa var. grindelioides
Asteraceae
(Sunflower family)
July-October
 
 


Helianthus
 
Slender-leaved sunflower
Helianthus gracilentus
Asteraceae
(Sunflower family)
May-October
 
 


Lasthenia
   
Goldfields
Lasthenia gracilis
Asteraceae
(Sunflower family)
February-June

Lathyrus
 
Canyon sweet pea
Lathyrus vestitus var. vestitus
Fabaceae
(Pea family)
April-June
 
 


Lithophragma
   
Hillside woodland star
Lithophragma heterophyllum
Saxifragaceae
(Saxifrage family)
April-June

Marah
 
Wild cucumber
Marah macrocarpa
Cucurbutaceae
(Gourd family)
January-April
 
 


Nemophila
 
Baby blue eyes
Nemophila menziesii var. integrifolia
Boraginaceae
(Borage family)
January-July
 
 


Osmorhiza
 
Sweet-cicely
Osmorhiza brachypoda
Apiaceae
(Carrot family)
March-May
 
 


Paeonia
 
Wild peony
Paeonia californica
Paeoniaceae
(Peony family)
January-March
 
 


Pectocarya
 
Winged pectocarya
Pectocarya penicillata
Boraginaceae
(Borage family)
March-May
 
 


Phacelia
 
Common phacelia
Phacelia distans
Boraginaceae
(Borage family)
March-June
 
 
Imbricate phacelia
Phacelia imbricata ssp. patula
Boraginaceae
(Borage family)
April-June

Quercus
 
Coast live oak
Quercus agrifolia var. agrifolia
Fagaceae
(Oak family)
March-April
 
 


Rhus
 
Skunkbush
Rhus aromatica
Anacardiaceae
(Sumac family)
March-April
 
 
Sugar bush
Rhus ovata
Anacardiaceae
(Sumac family)
Mar-May

Ribes
 
Chaparral currant
Ribes malvaceum var. viridifolium
Grossulariaceae
(Gooseberry family)
January-May
 
 
Golden currant
Ribes aureum var. gracillimum
Grossulariaceae
(Gooseberry family)
February-April

Rubus
 
California blackberry
Rubus ursinus
Rosaceae
(Rose family)
March-July
 
     
 

Salix
 
Arroyo willow
Salix lasiolepis
Salicaceae
(Willow family)
February-April
 
 


Salvia
 
Chia
Salvia columbariae
Lamiaceae (Mint family)
March-June
 
 


Sambucus
 
Mexican elderberry
Sambucus nigra ssp. caerulea
Adoxaceae
(Muskroot)
March-April
 
 


Sanicula
 
Pacific sanicle
Sanicula crassicaulis
Apiaceae
(Carrot family)
March-May
 
 


Tauschia
 
Southern tauschia
Tauschia arguta
Apiaceae
(Carrot family)
April-June
 
 


Thysanocarpus
 
Fringe-pod
Thysanocarpus curvipes
Brassicaceae
(Mustard family)
March-May
 
 


Trichostemma
 
Woolly blue curls
 
 




Copyright @ 2017-2019 by Michael L. Charters.
The photographs contained in this website may not be reproduced without the express consent of the author.