Ring-necked Ducks, drake and hen, at Lloyd Lake, Golden Gate Park.

Green-winged Teal drake at Stow Lake, Golden Gate Park.
Previously seen as juvenile at another lake in the park.

American Wigeon, drake. A winter visitor to Lloyd Lake, Golden Gate Park.

American Wigeon, hen. A winter visitor to Lloyd Lake, Golden Gate Park.

Hooded Merganser, drake. A winter visitor to Lloyd Lake, Golden Gate Park.

Hooded Merganser, hen. A winter visitor to Lloyd Lake, Golden Gate Park.

Flowering bush

Groundcover

Flower clusters

Dormant?

Bush

Flowering bush, in the Nightshade family? Web-browse turned up Solanum douglasii
as closest match but can't get that thru iNaturalist sources.

Berries

Groundcover

Tree

Flowering bush

Nasturtium
an invasive species

Flowering bush

Thistle?

Lands End
Looks like a paintbrush.

Lands End
Possibly a strawberry plant?

Lands End

Lands End

Lands End
Alga on tree, possibly Trentepohlia