Orchidaceae

(Orchids)

Note: Orchid flowers are usually highly modified, and sometimes contain confusing combinations of petals and sepals. To avoid confusion all petallike structures will be referred to as petals even though they may either petals or sepals.

Amerorchis

rotundifolia (Small Round-leaved Orchis)

Aplectrum

hyemale (Puttyroot)

Arethusa

bulbosa (Arethusa)

Calopogon

tuberosus (Calopogon)

Calypso

bulbosa (Calypso)

Cleistes

divaricata (Spreading Pogonia)

Coeloglossum

viride (Long-bracted Orchis)

Corallorrhiza

maculata (Spotted Coralroot)

wisteriana (Wister's Coralroot)

Cypripedium

acaule (Moccasin Flower)

arietinum (Ram's Head Lady's Slipper)

calceolus (see pubescens)

candidum (Small White Lady's Slipper)

parviflorum (Smaller Yellow Lady's Slipper)

pubescens (Larger Yellow Lady's Slipper)

reginae (Showy Lady's Slipper)

Epipactis

helleborine (Helleborine)

Galearis

spectabilis (Showy Orchis)

Goodyera

pubescens (Downy Rattlesnake Plantain)

repens (Dwarf Rattlesnake Plantain)

tesselata (Checkered Rattlesnake Plantain)

Isotria

medeoloides (Small Whorled Pogonia)

verticillata (Whorled Pogonia)

Liparis

liliifolia (Large Twayblade)

loeselii (Bog Twayblade)

Listera

convallarioides (Broad-lipped Twayblade)

cordata (Heartleaf Twayblade)

Malaxis

brachypoda (White Adder's Mouth)

unifolia (Green Adder's Mouth)

Platanthera

blephariglottis (White Fringed Orchis)

ciliaris (Yellow Fringed Orchis)

clavellata (Small Woodland Orchis)

cristata (Crested Yellow Orchis)

dilatata (Leafy White Orchis)

fimbriata (see grandifolia)

flava (Pale Green Orchis)

grandifolia (Purple Fringed Orchis)

hookeri (Hooker's Orchis)

hyperborea (Northern Green Orchis)

integra (Yellow Fringeless Orchis)

lacera (Ragged Fringed Orchis)

leucophaea (Prairie White Fringed Orchis)

nivea (Snowy Orchis)

obtusata (One-leaf Rein Orchis)

orbiculata (Round-leaved Orchis)

peramoena (Purple Fringleless Orchis)

psycodes (Small Purple Fringed Orchis)

Pogonia

ophioglossoides (Rose Pogonia)

Spiranthes

cernua (Nodding Ladies' Tresses)

gracilis (see lacera)

lacera (Slender Ladies' Tresses)

lucida (Wide-leaved Ladies' Tresses)

romanzoffiana (Hooded Ladies' Tresses)

vernalis (Spring Ladies' Tresses)

Tipularia

discolor (Cranefly Orchid)

Triphora

trianthophora (Nodding Pogonia)