I don't know if this is a ground orchid, but just noticed it in our back garden in the shade under a shrub. We have only been here 1 1/2 years in this house. We have had a lot of rain. Quite dainty little thing. Leaves are 5/8 inch wide. Flowers, white tinged with pink are 3 inches wide. Has been in flower for 3 days now.
It's a Rain Lily, either Habranthus or Zephyranthes. If the flower points strait up - it's a Zephyranthes. It it kind of nods forward - it's Habranthus.