Most Common Species
Showing 20 most frequently observed species out of 80 total documented species.
Quercus lobata
Valley Oak
Very Common0.93 obs.
Ailanthus altissima
Ailanthus
Very Common0.8 obs.
Fraxinus latifolia
Oregon Ash
Very Common0.74 obs.
Hoita macrostachya
Leatherroot
Very Common0.67 obs.
Lynx rufus
Lince
Very Common0.59 obs.
Pholistoma auritum
Common0.57 obs.
Cucurbita foetidissima
Buffalo Gourd
Common0.56 obs.
Nicotiana quadrivalvis
Indian Tobacco
Common0.53 obs.
Otospermophilus beecheyi
Gray Digger
Common0.48 obs.
Buteo jamaicensis
Chicken Hawk
Common0.47 obs.
Sambucus cerulea
Blue Elder
Common0.45 obs.
Urtica urens
Dog Nettle
Occasional0.45 obs.
Ficus carica
Edible Fig
Occasional0.4 obs.
Lamium amplexicaule
Henbit
Occasional0.38 obs.
Marrubium vulgare
Horehound
Occasional0.38 obs.
Ibicella lutea
Yellow Unicorn-Plant
Occasional0.33 obs.
Nicotiana glauca
Tobacco-Bush
Occasional0.32 obs.
Onopordum acanthium
Giant Thistle
Rare0.28 obs.
Silybum marianum
Bull Thistle
Rare0.28 obs.
Melia azedarach
Chinaberrytree
Rare0.27 obs.
Want the Complete Field Guide?
Get all 80 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.
Premium field guide includes identification tips, seasonal patterns, and professional layout optimized for field use.