PlantsFlowering PlantsEvening-primrose Family — Family Onagraceae
Leaves simple. Usually 4 petals and 8 stamens, except Ludwigia peploides with 5 petals and 10 stamens.
Berlandier's Evening-primrose
Evening-primroses — Genus Calylophus
Leaves simple. Flowers radially symmetrical, yellow. Usually 4 petals and 8 stamens. The stigmas are peltate.
No image available.
Longcapsule Suncup —  Camissonia chamaenerioides [1]
No image available.
Willowherb — Genus Epilobium
Roadside Gaura
Gaura — Genus Gaura
Leaves simple. Flowers bilaterally symmetrical, white, turning pink with age. 4 petals and 8 stamens.
Water-primrose
Water-primroses — Genus Ludwigia
Leaves simple. Flowers radially symmetrical, yellow. Usually 4 petals and 8 stamens, except Ludwigia peploides with 5 petals and 10 stamens.
Pink Evening-primrose
Evening-primroses — Genus Oenothera
Leaves simple. Flowers radially symmetrical. 4 petals and 8 stamens. Stigmas deeply lobed or branched.
No image available.
False Gaura —  Stenosiphon linifolius [1]
Flowers radially symmetrical, white. Flowering May-Jul(-Oct).
Evidence that species is found in Texas:
  1. USDA Plants Database, advanced search for Texas plants from the United States Department of Agriculture.