California Dandelion
Agoseris grandiflora
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Spearleaf Agoseris
Agoseris retrorsa
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Blasdale's Bentgrass
Agrostis blasdalei
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Spike Bentgrass
Agrostis exarata
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Hall's Bentgrass
Agrostis hallii
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Idaho Bentgrass
Agrostis idahoensis
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Thingrass
Agrostis pallens
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Camp Pendelton Bent Grass
Agrostis pallens 'Camp Pendelton'
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Ticklegrass
Agrostis scabra
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Water Plantain
Alisma triviale
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Iodine Bush
Allenrolfea occidentalis
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Abrams' Allium
Allium abramsii
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Narrow Leaved Onion
Allium amplectens
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Graceful Beauty Narrow Leaved Onion
Allium amplectens 'Graceful Beauty'
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Twin Leaved Onion
Allium anceps
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Burlew's Onion
Allium burlewii
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Sierra Onion
Allium campanulatum
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Cascade Onion
Allium cratericola
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Crinkled Onion
Allium crispum
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Toothed Wild Onion
Allium denticulatum
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Diablo Onion
Allium diabolense
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Coast Onion
Allium dichlamydeum
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Scytheleaf Onion
Allium falcifolium
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Fringed Onion
Allium fimbriatum
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Fringed Onion
Allium fimbriatum var. fimbriatum
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Purdy's Onion
Allium fimbriatum var. purdyi
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Red-skinned Onion
Allium haematochiton
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Howell's Onion
Allium howellii
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Mt. Pinos Onion
Allium howellii var. clokeyi
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Howell's Onion
Allium howellii var. howellii
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Glassy Onion
Allium hyalinum
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Jepson's Onion
Allium jepsonii
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Pitted Onion
Allium lacunosum
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Pitted Onion
Allium lacunosum var. lacunosum
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Yucaipa Onion
Allium marvinii
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Red Sierra Onion
Allium obtusum
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Red Sierra Onion
Allium obtusum var. conspicuum
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Red Sierra Onion
Allium obtusum var. obtusum
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Mexicali Onion
Allium peninsulare
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Flat Stemmed Onion
Allium platycaule
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Congdon's Onion
Allium sanbornii var. congdonii
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Jeweled Onion
Allium serra
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Tolmie's Onion
Allium tolmiei
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Tolm's Onion
Allium tolmiei var. tolmiei
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Rawhide Hill Onion
Allium tuolumnense
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Pacific Mountain Onion
Allium validum
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Yosemite Onion
Allium yosemitense
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Gray Alder
Alnus incana
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Mountain Alder
Alnus incana ssp. tenuifolia
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White Alder
Alnus rhombifolia
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Water Foxtail
Alopecurus geniculatus
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Wright's Beebrush
Aloysia wrightii
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Annual Bursage
Ambrosia acanthicarpa
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Ambrosia Bursage
Ambrosia ambrosioides
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Beach Bur
Ambrosia chamissonis
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San Diego Bursage
Ambrosia chenopodiifolia
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White Bursage
Ambrosia dumosa
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Singlewhorl Burrobrush
Ambrosia monogyra
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Western Ragweed
Ambrosia psilostachya
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San Diego Ambrosia
Ambrosia pumila