OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Monocots: Asparagales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Platanthera grandiflora   FAMILY Orchidaceae   Go to FSUS key


INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Platanthera grandiflora   FAMILY Orchidaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Platanthera grandiflora

INCLUDED WITHIN Flora of North America
Platanthera grandiflora

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 049-03-003b:
Habenaria psycodes var. grandiflora   FAMILY Orchidaceae

INCLUDED WITHIN Gray's Manual of Botany (Fernald, 1950)
Habenaria fimbriata

INCLUDED WITHIN Manual of the Southeastern Flora (Small, 1933, 1938)
Blephariglottis grandiflora

 

COMMON NAME:
Large Purple Fringed Orchid, Plume-royal, Greater Purple Fringed Orchid


         To see larger pictures, click or hover over the thumbnails.

image of Platanthera grandiflora, Large Purple Fringed Orchid, Plume-royal, Greater Purple Fringed Orchid

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_blgr_001_lvd

        

image of Platanthera grandiflora, Large Purple Fringed Orchid, Plume-royal, Greater Purple Fringed Orchid

Ben Geer Keys    bgk2278_a

June        

A squarish to roundish (never dumbbell-shaped) opening at lip base, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.

image of Platanthera grandiflora, Large Purple Fringed Orchid, Plume-royal, Greater Purple Fringed Orchid

Harry Davis    hld2278_crw_7011

July    Buncombe County    NC

Blue Ridge Parkway

Lip petal divided into 3 flared deeply-fringed lobes, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.

image of Platanthera grandiflora, Large Purple Fringed Orchid, Plume-royal, Greater Purple Fringed Orchid

Steve Marlow    snm070702d101_008

July    Pocahontas County    WV

Cranberry Glades Botanical Area

Leaves alternate, lanceolate, keeled, to 8" long, sheathing the lower stem, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Platanthera grandiflora   FAMILY Orchidaceae

INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Platanthera grandiflora   FAMILY Orchidaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Platanthera grandiflora

INCLUDED WITHIN Flora of North America
Platanthera grandiflora

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 049-03-003b:
Habenaria psycodes var. grandiflora   FAMILY Orchidaceae

INCLUDED WITHIN Gray's Manual of Botany (Fernald, 1950)
Habenaria fimbriata

INCLUDED WITHIN Manual of the Southeastern Flora (Small, 1933, 1938)
Blephariglottis grandiflora

 

Find by SCIENTIFIC NAME:

2278

Forb
Perennial

Native to North Carolina & Georgia

Rare

Habitat: bogs, seepages, moist places at high elevations, per Weakley's Flora

map
Click here to see a map, notes, and images from Weakley's Flora of the Southeastern US.

Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)

LEAVES:
Simple
Alternate, with floral bracts upward

FLOWER:
Summer
Lilac-lavender/ Pinkish-purple
Bisexual
Bilaterally symmetrical
3 sepals, two lateral and one dorsal
3 petals, the two lateral similar and a third (the lip) enlarged
stamens and pistil fused together into a column
Inferior ovary

Raceme

FRUIT:
Summer
Capsule

 

TO LEARN MORE about this plant, look it up in a good book!



 


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