Platanthera chapmanii (Small) Luer
Chapman's Fringed Orchid
Facts About
Accepted synonyms: Blephariglottis chapmanii, Habenaria chapmanii
Platanthera chapmanii, commonly known as Chapman’s Fringed Orchid, is widely scattered in northern Florida, Georgia and eastern Texas. The species produces 2-4 leaves on its stem that are present at the time of flowering. It blooms in July through September and bears an inflorescence of 30-65 bright yellow and orange flowers arranged in a dense terminal raceme. The labellum is fringed, spurred and brilliant orange. This orchid may have originated as a hybrid between Platanthera ciliaris and Platanthera cristata. Typically populations are located in wet meadows, roadside ditches, and pine flatlands.
Platanthera chapmanii is considered globally imperiled and possibly extirpated in Georgia.
Pollination
This orchid is pollinated by long-tongued butterflies that visit the flower in search of nectar, such as Eurytides marcellus, Papilio palamedes, Papilio troilus and Phoebis sennae. Unlike other species of Platanthera, pollinia are attached to the butterfly’s proboscis rather than its compound eyes.
Ecosystem Type
Bogs, fens, floodplains, grassland, meadows, woodlands
Characteristics
- Habitat:
- terrestrial
- Leaf arrangement:
- alternate
- Number of leaves on stem:
-
- two
- three
- four
- Form of the labellum:
- the labellum is not pouch-like
- Labellum outline:
- the labellum is fringed
- Main color of labellum:
- orange
- Nectar spur:
- present
- Inflorescence type:
- the inflorescence is a raceme
- Labellum characteristics:
-
- the labellum has a spur
- the labellum is fringed
- Labellum length:
- 5–10 mm
- Sepal length:
- 4–5 mm
- Plant height:
- Up to 75 cm
-
Flowers
- Flower petal color:
-
- orange
- yellow
- Flower symmetry:
- the flower is zygomorphic
- Flowering date:
-
- July
- August
- September
- Flowers per inflorescence:
- 30–65
- Form of the labellum:
- the labellum is not pouch-like
- Hairs on flower stalk:
- the pedicel is hairless
- Hairs on inflorescence axis:
- the inflorescence stem is hairless
- Inflorescence type:
- the inflorescence is a raceme
- Labellum characteristics:
-
- the labellum has a spur
- the labellum is fringed
- Labellum length:
- 5–10 mm
- Labellum outline:
- the labellum is fringed
- Labellum position:
- the flowers are resupinate
- Lower petal strongly red-veined:
- no
- Main color of labellum:
- orange
- Nectar spur:
- present
- Nectar spur length:
- 10–14 mm
- Number of stamens:
- 1
- Orientation of side petals:
- the lateral petals are spreading
- Self-pollinating flowers:
- there are no cleistogamous flowers
- Sepal length:
- 4–5 mm
- Sepals fused only to sepals:
- the sepals are separate from one another
- Spots on labellum:
- no
- Spur opening shape:
- roughly circular
-
Fruits or seeds
- Fruit length:
- 10–19 mm
- Seed capsule orientation:
- the capsule points upwards or outwards
-
Growth form
- Plant height:
- Up to 75 cm
- Roots:
- the rhizomes are non-coralloid
- Underground organs:
- the plant has one or more swollen storage organs underground, such as bulbs, tubers or corms
- myco-heterotrophic or not:
- the plant is chlorophyllous
-
Leaves
- Bract relative length:
- the bract is shorter than the associated flower
- Leaf arrangement:
- alternate
- Leaf blade edges:
- the leaf edges are entire
- Leaf blade length:
- 150–260 mm
- Leaf blade length to width ratio:
- 8.7–15
- Leaf blade shape:
- lanceolate
- Leaf blade tip:
- the tip of the leaf blade is acuminate
- Leaf blade width:
- 10–30 mm
- Leaves during flowering:
- leaves are present during flowering
- Number of leaves on stem:
-
- two
- three
- four
-
Place
- Ecosystem type:
-
- bogs
- fens
- floodplains
- grasslands
- meadows
- woodlands
- Habitat:
- terrestrial
- Location:
-
- Florida
- Georgia
- Texas
-
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 | Imperiled |
US Status | N/A |
Canadian Status | N/A |
Conservation status for: Florida | |
---|---|
Global Rank | Imperiled |
US Status | N/A |
Florida Rank | N/A |
Florida Status | N/A |
Canadian Status | N/A |
Wetland Status | Facultative Wetland |
Conservation status for: Georgia | |
---|---|
Global Rank | Imperiled |
US Status | N/A |
Georgia Rank | Possible Extirpated |
Georgia Status | N/A |
Canadian Status | N/A |
Wetland Status | Facultative Wetland |
Conservation status for: Texas | |
---|---|
Global Rank | Imperiled |
US Status | N/A |
Texas Rank | Highly State Rare |
Texas Status | N/A |
Canadian Status | N/A |
Wetland Status | Facultative Wetland |