NameThatPlant.net: Platanthera orbiculata

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

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

Dig deeper at SERNEC, a consortium of southeastern herbaria.

Learn more about Platanthera from the Vascular Plants of North Carolina.

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Platanthera orbiculata FAMILY Orchidaceae

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

Platanthera orbiculata

SYNONYMOUS WITH Flora of North America

Platanthera orbiculata

SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)

Platanthera orbiculata var. orbiculata

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 049-03-007:

Habenaria orbiculata FAMILY Orchidaceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)

Lysias orbiculata

COMMON NAME:
Large Round-leaved Orchid, Dessert-plate Orchid

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

image of Platanthera orbiculata, Large Round-leaved Orchid, Dessert-plate Orchid

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_lyor_001_lvd

Terry Holdsclaw tdh_p_orbiculata

June Wautauga County NC

Flowering scape arises between a pair of distinctive flat rounded basal lvs, per Wild Flowers of NC, 2nd edition (Justice, Bell, & Lindsey, 2005).

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

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Platanthera orbiculata FAMILY Orchidaceae

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

SYNONYMOUS WITH Flora of North America
Platanthera orbiculata

SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)
Platanthera orbiculata var. orbiculata

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 049-03-007:
Habenaria orbiculata FAMILY Orchidaceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Lysias orbiculata

2853

Forb

Habitat: Moist hardwood forests and seeps, especially over mafic, calcareous, or other more nutrient-rich substrates, per Weakley's Flora

Native to North Carolina

Uncommon in NC Mountains, rare in NC Piedmont

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
Basal (1-2)

FLOWER:
Summer/Fall
Greenish-white
Pedicel 1.5-2.5cm long
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/Fall
Capsule

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