Platanthera limosa Lindl.
Thurber's Bog Orchid
Facts About
Accepted Synonyms: Habenaria limosa, Limnorchis thurberi
Platanthera limosa, or Thurber's Bog Orchid, is widely distributed in Mexico, but north of the border is found only in Arizona and New Mexico. This orchid's height typically ranges from 20-100 cm, but may exceed 1.5 meters in Mexico. Robust plants may have up to 200 green to yellowish green flowers with leaves scattered up the stem. The long, slender spur, small narrow column and the jagged callus on the yellow-green labellum distinguish this orchid from other species in the area. This orchid prefers moist areas in mixed forests at higher elevations, usually near streams or at seeps.
Platanthera limosa is apparently secure across its limited distribution with populations growing in nearly inaccessible habitat or protected within designated wilderness areas.
Pollination
Pollinator information for this orchid has not been reported.
Ecosystem Type
Forests, marshes, seeps, stream bank
Characteristics
- Habitat:
- terrestrial
- Leaf arrangement:
-
- basal
- stem
- Number of leaves on stem:
-
- five
- six
- seven or more
- Labellum outline:
- the labellum is simple
- Main color of labellum:
-
- green to brown
- yellow
- Nectar spur:
- present
- Inflorescence type:
- the inflorescence is a spike
- Labellum characteristics:
- the labellum is simple
- Labellum length:
- 2.5–8 mm
- Sepal length:
- anything
- Plant height:
- 30–165 cm
-
Flowers
- Flower petal color:
-
- green
- yellow
- Flower symmetry:
- the flower is zygomorphic
- Flowering date:
-
- June
- July
- August
- Flowers per inflorescence:
- Up to 200
- Inflorescence type:
- the inflorescence is a spike
- Labellum characteristics:
- the labellum is simple
- Labellum length:
- 2.5–8 mm
- Labellum outline:
- the labellum is simple
- Labellum position:
- the flowers are resupinate
- Lower petal strongly red-veined:
- no
- Main color of labellum:
-
- green to brown
- yellow
- Nectar spur:
- present
- Nectar spur length:
- 8–25 mm
- Number of stamens:
- 1
- Orientation of side petals:
- the lateral petals are spreading
- Self-pollinating flowers:
- there are no cleistogamous flowers
- Sepal length:
- anything
- Shape of viscidium:
- oval
- Spots on labellum:
- no
-
Fruits or seeds
- Fruit length:
- Up to 10 mm
- Fruit width:
- Up to 5 mm
- Seed capsule orientation:
- the capsule points upwards or outwards
-
Growth form
- Plant height:
- 30–165 cm
- Roots:
- the rhizomes are non-coralloid
- Underground organs:
-
- slender roots
- this plant has a rhizome
- myco-heterotrophic or not:
- the plant is chlorophyllous
-
Leaves
- Bract relative length:
- the bract is longer than the associated flower
- Leaf arrangement:
-
- basal
- stem
- Leaf blade edges:
- the leaf edges are entire
- Leaf blade length:
- 90–280 mm
- Leaf blade shape:
-
- lanceolate
- linear
- Leaf blade tip:
- the tip of the leaf blade is acute
- Leaf blade width:
- 12–35 mm
- Leaves during flowering:
- leaves are present during flowering
- Number of leaves on stem:
-
- five
- six
- seven or more
-
Place
- Ecosystem type:
-
- forests
- marshes
- seeps
- stream banks
- Habitat:
- terrestrial
- Location:
-
- Arizona
- New Mexico
-
Facts and Uses
- Mycorrhiza
- Monitoring
- Propagation
- Restoration
Native to North America
Yes
North American Conservation Status & Distribution
Conservation Status
Conservation and Wetland Status | |
---|---|
Global Rank | Apparently Secure |
US Status | N/A |
Canadian Status | N/A |
Conservation status for: Arizona | |
---|---|
Global Rank | Apparently Secure |
US Status | N/A |
Arizona Rank | Apparently Secure |
Arizona Status | N/A |
Canadian Status | N/A |
Wetland Status | Obligate Wetland |
Conservation status for: New Mexico | |
---|---|
Global Rank | Apparently Secure |
US Status | N/A |
New Mexico Rank | N/A |
New Mexico Status | N/A |
Canadian Status | N/A |
Wetland Status | Obligate Wetland |