Here are my favorite plant (and animal) identifications I have made over the past few years.
Western Tiger Swallow
Papilio rutulus
Orange County, CA
Pineapple-Weed
Matricaria discoidea
San Luis Obispo, CA
Wild Radish
Raphanus sativas
San Luis Obispo, CA
San Luis Mariposa Lily
Calochortus obispoensis
San Luis Obispo, CA
Greater Quaking Grass
Briza maxima
San Luis Obispo, CA
Tree Tobacco
Nicotiana glauca
Orange County, CA
California Quail
Callipepla californica
Orange County, CA
Brown Pelican
Pelecanus occidentalis
Orange County, CA
Great Blue Heron
Ardea herodias
Kitsap County, WA
Common Candy-striped Spider
Enoplognatha ovata
Seattle, WA
Dog Vomit Slime Mold
Fuligo septica
King County, WA
Cascade Oregon Grape
Berberis nervosa
King County, WA
Evergreen Huckleberry
Vaccinium ovatum
Kitsap County, WA
Golden Buprestid Beetle
Buprestis aurulenta
Kitsap County, WA
Jelly Spot Fungus
Dacrymyces stillatus
Kitsap County, WA
Red Deadnettle
Lameum purpureum
Kitsap County, WA
Trailing Blackberry
Rubis ursinus
Kitsap County, WA
Silver-spotted Tiger Moth
Lophocampa argentata
Kitsap County, WA