GENUS

Amerorchis

Arethusa

Calopogon

Calypso

Corallorhiza

Cypripedium

Dactylorhiza

Epipactis

Goodyera

Liparis

Listera

Malaxis

Platanthera

Pogonia

Spiranthes

Spiranthes lacera var. lacera - Slender ladies tresses

Seed Capsule Size - 3 mm x 0.75 mm

Spiranthes magnicamporum - Great plains ladies tresses

Seed Capsule Size - 7 mm x 3 mm

Spiranthes romanzoffiana - Hooded ladies tresses

Seed Capsule Size - 4 mm x 2 mm