A couple of days after I noticed Rose Pogonia flowering at the bog, I discovered a small patch of Tuberous Grass-pink (Calopogon tuberosus) in a small roadside wetland, rising above a carpet of flowering Large Cranberry plants. This orchid has numerous pink flowers, but just a single grass-like basal leaf, and lives in bogs, fens, meadows, and open wet swamps in all six New England states. In fact, of the five Grass-pinks (genus Calopogon) native to the United States, Tuberous Grass-pink is the only one who grows in New England.
As with last week's orchid, I identified this new-to-me plant using Newcomb's Wildflower Guide (Flower type: Irregular Flowers; Plant type: Wildflower with Basal Leaves Only; Leaf type: Leaves Entire), and double checked my conclusion with Go Botany's simple online key to 25 New England Orchids. (To view the following images in full-size, click here.)