Platanthera nivea (Nutt) Luer
Snowy Orchid
Facts About
Accepted Synonyms: Habenaria nivea
Platanthera nivea, commonly known as Snowy Orchid, is distributed in the southeastern United States from Texas to Florida and in the southern mid-Atlantic region as far north as New Jersey. It produces 1-3 leaves along its stem, and bears a dense inflorescence of multiple bright white, small, non-resupinate flowers. The labellum, which points upwards from the column, is linear and somewhat elongated, and a long, cylindrical spur extends out from the back of the flower. It is found primarily in moist woodlands and meadows, bogs, swamps, and pine barrens.
Platanthera nivea is globally considered secure, although it is considered rare or vulnerable throughout much of its range. It can form substantial colonies of numerous plants, even in areas where it is considered uncommon.
Pollination
This orchid is pollinated by butterflies and skippers, including Lerema accius. The polllinia attach to the proboscis as the insect probes for nectar then pollen is transferred to the next flower it visits.
Ecosystem Type
Bogs, fens, floodplains, meadows, swamps, woodlands
Characteristics
- Habitat:
- terrestrial
- Leaf arrangement:
- alternate
- Number of leaves on stem:
-
- one
- two
- three
- Form of the labellum:
- the labellum is not pouch-like
- Labellum outline:
- the labellum is simple
- Main color of labellum:
- white
- Nectar spur:
- present
- Inflorescence type:
- the inflorescence is a raceme
- Labellum characteristics:
-
- the labellum has a spur
- the labellum is simple
- Labellum length:
- 3–8 mm
- Sepal length:
- 5–6 mm
- Plant height:
- 17–90 cm
-
Flowers
- Floral bract length:
- Up to 12 mm
- Flower petal color:
- white
- Flower symmetry:
- the flower is zygomorphic
- Flowering date:
-
- May
- June
- July
- August
- September
- Flowers per inflorescence:
- 20–50
- 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 simple
- Labellum length:
- 3–8 mm
- Labellum outline:
- the labellum is simple
- Labellum position:
- the flowers are non-resupinate
- Lower petal strongly red-veined:
- no
- Main color of labellum:
- white
- Nectar spur:
- present
- Nectar spur length:
- 10–18 mm
- Number of stamens:
- 1
- Orientation of side petals:
- the lateral petals are declined
- Pollen sacs:
- the pollinia remain intact and do not fragment into smaller parts
- Self-pollinating flowers:
- there are no cleistogamous flowers
- Sepal length:
- 5–6 mm
- Sepals fused only to sepals:
- the sepals are separate from one another
- Shape of viscidium:
- linear
- Spots on labellum:
- no
-
Fruits or seeds
- Fruit length:
- Up to 12 mm
- Fruit width:
- Up to 4 mm
- Seed capsule orientation:
- the capsule points upwards or outwards
-
Growth form
- Plant height:
- 17–90 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:
- bracts may be variable, both longer and shorter than the flower
- Leaf arrangement:
- alternate
- Leaf blade length:
- 30–310 mm
- Leaf blade length to width ratio:
- 10–15.5
- Leaf blade shape:
-
- lanceolate
- linear
- Leaf blade tip:
- the tip of the leaf blade is acute
- Leaf blade width:
- 3–20 mm
- Leaves during flowering:
- leaves are absent during flowering
- Number of leaves on stem:
-
- one
- two
- three
-
Place
- Ecosystem type:
-
- bogs
- fens
- floodplains
- meadows
- swamps
- woodlands
- Habitat:
- terrestrial
- Location:
-
- Alabama
- Arkansas
- Delaware
- Florida
- Georgia
- Louisiana
- Mississippi
- New Jersey
- North Carolina
- South Carolina
- Tennessee
- 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 | Secure |
US Status | N/A |
Canadian Status | N/A |
Conservation status for: Alabama | |
---|---|
Global Rank | Secure |
US Status | N/A |
Alabama Rank | State Rare |
Alabama Status | N/A |
Canadian Status | N/A |
Wetland Status | Facultative Wetland |
Conservation status for: Arkansas | |
---|---|
Global Rank | Secure |
US Status | N/A |
Arkansas Rank | Possible Extirpated |
Arkansas Status | Endangered |
Canadian Status | N/A |
Wetland Status | Facultative Wetland |
Conservation status for: Delaware | |
---|---|
Global Rank | Secure |
US Status | N/A |
Delaware Rank | N/A |
Delaware Status | N/A |
Canadian Status | N/A |
Wetland Status | Facultative Wetland |
Conservation status for: Florida | |
---|---|
Global Rank | Secure |
US Status | N/A |
Florida Rank | Watch List |
Florida Status | N/A |
Canadian Status | N/A |
Wetland Status | Facultative Wetland |
Conservation status for: Georgia | |
---|---|
Global Rank | Secure |
US Status | N/A |
Georgia Rank | State Rare |
Georgia Status | N/A |
Canadian Status | N/A |
Wetland Status | Facultative Wetland |
Conservation status for: Louisiana | |
---|---|
Global Rank | Secure |
US Status | N/A |
Louisiana Rank | N/A |
Louisiana Status | N/A |
Canadian Status | N/A |
Wetland Status | Facultative Wetland |
Conservation status for: Mississippi | |
---|---|
Global Rank | Secure |
US Status | N/A |
Mississippi Rank | N/A |
Mississippi Status | N/A |
Canadian Status | N/A |
Wetland Status | Facultative Wetland |
Conservation status for: North Carolina | |
---|---|
Global Rank | Secure |
US Status | N/A |
North Carolina Rank | Highly State Rare |
North Carolina Status | Threatened |
Canadian Status | N/A |
Wetland Status | Facultative Wetland |
Conservation status for: New Jersey | |
---|---|
Global Rank | Secure |
US Status | N/A |
New Jersey Rank | Highly State Rare |
New Jersey Status | Endangered |
Canadian Status | N/A |
Wetland Status | Facultative Wetland |
Conservation status for: South Carolina | |
---|---|
Global Rank | Secure |
US Status | N/A |
South Carolina Rank | N/A |
South Carolina Status | N/A |
Canadian Status | N/A |
Wetland Status | Facultative Wetland |
Conservation status for: Tennessee | |
---|---|
Global Rank | Secure |
US Status | N/A |
Tennessee Rank | Highly State Rare |
Tennessee Status | Endangered |
Canadian Status | N/A |
Wetland Status | Facultative Wetland |
Conservation status for: Texas | |
---|---|
Global Rank | Secure |
US Status | N/A |
Texas Rank | N/A |
Texas Status | N/A |
Canadian Status | N/A |
Wetland Status | Facultative Wetland |