Malaxis bayardii Fern.
Bayard's Adder's Mouth
Facts About
Accepted Synonyms: Malaxis bayardii f. kelloggiae
Malaxis bayardii, commonly called Bayard's Adder's Mouth, has a limited distribution along the central and northern East Coast of the United States and Canada, from Nova Scotia to North Carolina. It is a small, inconspicuous species which flowers in the summer, producing a cylindrical inflorescence of up to 70 small, yellowish green, resupinate flowers. The dorsal sepal is somewhat elongated and has a pointed tip, while the labellum is lobed. It produces one or rarely two green, glossy leaves half way up its stem. It can be found in dry woodlands, pine barrens, and especially favors sandy and shallow soils.
Malaxis bayardii is globally considered critically imperiled, and is rare or possibly extirpated throughout much of its range. Malaxis bayardii can be distinguished from Malaxis unifolia by its more prominently lobed labellum; it is also unlikely to grow in the swamps, bogs, and moist woodlands where M. unifolia can be found.
Pollination
Pollinator information for this orchid has not been reported but flower morphology suggests fungus gnats.
Ecosystem Type
Disturbed habitats, meadows, shrublands or thickets, woodlands
Characteristics
- Habitat:
- terrestrial
- Leaf arrangement:
- alternate
- Number of leaves on stem:
-
- one
- two
- Form of the labellum:
- the labellum is not pouch-like
- Labellum outline:
- the labellum is lobed
- Main color of labellum:
-
- green to brown
- yellow
- Nectar spur:
- absent
- Inflorescence type:
- the inflorescence is a raceme
- Labellum characteristics:
- the labellum is lobed
- Labellum length:
- 1.8–2.5 mm
- Sepal length:
- 1.4–2 mm
- Plant height:
- 9–26 cm
-
Flowers
- Floral bract length:
- 0.9–1.6 mm
- Flower petal color:
-
- green
- yellow
- Flower symmetry:
- the flower is zygomorphic
- Flowering date:
-
- June
- July
- August
- Flowers per inflorescence:
- 10–70
- 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 length:
- 10–120 mm
- Inflorescence type:
- the inflorescence is a raceme
- Labellum characteristics:
- the labellum is lobed
- Labellum length:
- 1.8–2.5 mm
- Labellum outline:
- the labellum is lobed
- Labellum position:
- the flowers are resupinate
- Length of flower stalk:
- 3.4–5.8 mm
- Lobes at base of labellum:
- 0.8–1.1 mm
- Lower petal strongly red-veined:
- no
- Main color of labellum:
-
- green to brown
- yellow
- Nectar spur:
- absent
- Number of stamens:
- 1
- Orientation of side petals:
-
- the lateral petals are ascending
- the lateral petals are spreading
- Self-pollinating flowers:
- there are no cleistogamous flowers
- Sepal length:
- 1.4–2 mm
- Sepals fused only to sepals:
- the sepals are separate from one another
- Spots on labellum:
- no
-
Fruits or seeds
- Fruit length:
- Up to 6 mm
- Fruit width:
- Up to 3 mm
- Seed capsule orientation:
-
- the capsule bends downwards
- the capsule points upwards or outwards
-
Growth form
- Plant height:
- 9–26 cm
- Roots:
- the rhizomes are non-coralloid
- Underground organs:
-
- slender roots
- 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:
- 17–70 mm
- Leaf blade length to width ratio:
- 1.6–2.4
- Leaf blade shape:
- ovate
- Leaf blade tip:
- the tip of the leaf blade is acute
- Leaf blade width:
- 7–43 mm
- Leaves during flowering:
- leaves are present during flowering
- Number of leaves on stem:
-
- one
- two
-
Place
- Ecosystem type:
-
- disturbed habitats
- meadows
- shrublands or thickets
- woodlands
- Habitat:
- terrestrial
- Location:
-
- Connecticut
- Massachusetts
- New Jersey
- New York
- North Carolina
- Nova Scotia
- Pennsylvania
- Rhode Island
- Vermont
- Virginia
- West Virginia
-
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 | Critically Imperiled |
US Status | N/A |
Canadian Status | N/A |
Conservation status for: Connecticut | |
---|---|
Global Rank | Critically Imperiled |
US Status | N/A |
Connecticut Rank | N/A |
Connecticut Status | Endangered |
Canadian Status | N/A |
Wetland Status | N/A |
Conservation status for: Massachusetts | |
---|---|
Global Rank | Critically Imperiled |
US Status | N/A |
Massachusetts Rank | N/A |
Massachusetts Status | Endangered |
Canadian Status | N/A |
Wetland Status | N/A |
Conservation status for: North Carolina | |
---|---|
Global Rank | Critically Imperiled |
US Status | N/A |
North Carolina Rank | Highly State Rare |
North Carolina Status | N/A |
Canadian Status | N/A |
Wetland Status | N/A |
Conservation status for: New Jersey | |
---|---|
Global Rank | Critically Imperiled |
US Status | N/A |
New Jersey Rank | Possible Extirpated |
New Jersey Status | Endangered |
Canadian Status | N/A |
Wetland Status | N/A |
Conservation status for: New York | |
---|---|
Global Rank | Critically Imperiled |
US Status | N/A |
New York Rank | Highly State Rare |
New York Status | Endangered |
Canadian Status | N/A |
Wetland Status | N/A |
Conservation status for: Pennsylvania | |
---|---|
Global Rank | Critically Imperiled |
US Status | N/A |
Pennsylvania Rank | Highly State Rare |
Pennsylvania Status | Endangered |
Canadian Status | N/A |
Wetland Status | N/A |
Conservation status for: Rhode Island | |
---|---|
Global Rank | Critically Imperiled |
US Status | N/A |
Rhode Island Rank | N/A |
Rhode Island Status | Historical |
Canadian Status | N/A |
Wetland Status | N/A |
Conservation status for: Virginia | |
---|---|
Global Rank | Critically Imperiled |
US Status | N/A |
Virginia Rank | Presumed Extirpated |
Virginia Status | N/A |
Canadian Status | N/A |
Wetland Status | N/A |
Conservation status for: Vermont | |
---|---|
Global Rank | Critically Imperiled |
US Status | N/A |
Vermont Rank | N/A |
Vermont Status | N/A |
Canadian Status | N/A |
Wetland Status | N/A |
Conservation status for: West Virginia | |
---|---|
Global Rank | Critically Imperiled |
US Status | N/A |
West Virginia Rank | Possible Extirpated |
West Virginia Status | N/A |
Canadian Status | N/A |
Wetland Status | N/A |