These are often confused with Orchids, Birds Nest Orchid. Although you can see by the flowers that its very different. I only found out about them in looking for locations to see Birds Nest Orchid, my other half has never seen them, and we are on a mission to see one somewhere. The stalks of the orchid often remain so in looking for those (as they've gone over for this year), we found these. They are actually quite a rare plant, and come in a range of color from Bright Red, Bright Yellow (hence the name) and this more muted tones of pinks and yellows.
They grow in dark woods, these happened to be in Beech Woods and we were very glad to find a cluster of about 30 plants at different stages.