
Tamarisk.
Tres Rios Overbank Wetlands, Phoenix, Arizona.

Tamarisk.
Tres Rios Overbank Wetlands, Phoenix, Arizona.
Cottonwood.

Cottonwood.
Painted lady, two views.
Painted lady butterfly (Vanessa cardui) on brittlebush (Encelia farinosa), at the Rio Salado Habitat Restoration Area, Phoenix, Arizona.
Painted lady, two views.
Painted lady butterfly (Vanessa cardui) on brittlebush (Encelia farinosa), at the Rio Salado Habitat Restoration Area, Phoenix, Arizona.
Wildflower Survey: Desert tobacco (Nicotiana obtusifolia).
Rio Salado Habitat Restoration Area, Phoenix, Arizona.
Wildflower Survey: Desert tobacco (Nicotiana obtusifolia).
Rio Salado Habitat Restoration Area, Phoenix, Arizona.
Wildflower Survey: Allscale saltbush (Atriplex polycarpa).
Rio Salado Habitat Restoration Area, Phoenix, Arizona.
I am including this plant in my spring wildflower survey even there are no flowers visible. The fuzzy cotton balls are insect galls, likely caused by Asphondylia midges. The showy galls are almost always present on these plants, making them easy to identify.

Wildflower Survey: Allscale saltbush (Atriplex polycarpa).
Rio Salado Habitat Restoration Area, Phoenix, Arizona.
I am including this plant in my spring wildflower survey even there are no flowers visible. The fuzzy cotton balls are insect galls, likely caused by Asphondylia midges. The showy galls are almost always present on these plants, making them easy to identify.
G.B.H.
Great blue heron (Ardea herodias), Tres Rios Overbank Wetlands, Phoenix, Arizona. Please click photo for enlarged view.