Schiedeella arizonica P.M.Br.
Fallen Ladies' Tresses
Facts About
There are no synonyms for this orchid.
Schiedeella arizonica, the Fallen Ladies' Tresses, is widely distributed in the southwestern US and was originally identified as S. parasitica, an orchid now believed to be restricted to Mexico and Central America. S. arizonica has a basal rosette of 3-5 oval leaves that emerge after flowering and die-back before winter. The inflorescence is a terminal spike of translucent, tubular flowers that are white, rose or tan. The labellum has green stripes with a distinct red-orange spot in the center. This orchid may be found on the edge of meadows, but usually grows in heavy duff under dry coniferous forests, and among rocks and bare soil on hillsides.
Schiedeella arizonica is apparently secure and is widely scattered and locally common in parts of the southwest.
Pollination
Pollinator information for this orchid has not been reported.
Ecosystem Type
Forests, meadows, woodlands
Characteristics
- Habitat:
- terrestrial
- Leaf arrangement:
- basal
- Number of leaves on stem:
-
- two
- three
- four
- five
- Form of the labellum:
- the labellum is not pouch-like
- Labellum outline:
- the labellum is simple
- Main color of labellum:
- white
- Nectar spur:
- absent
- Inflorescence type:
- the inflorescence is a spike
- Labellum characteristics:
- the labellum is simple
- Labellum length:
- 5.5–8 mm
- Sepal length:
- 5–7 mm
- Plant height:
- 10–33 cm
-
Flowers
- Floral bract length:
- 6–10 mm
- Flower petal color:
-
- pink
- white
- Flower symmetry:
- the flower is zygomorphic
- Flowering date:
-
- May
- June
- July
- Flowers per inflorescence:
- 3–14
- Form of the labellum:
- the labellum is not pouch-like
- Inflorescence type:
- the inflorescence is a spike
- Labellum characteristics:
- the labellum is simple
- Labellum length:
- 5.5–8 mm
- Labellum outline:
- the labellum is simple
- Labellum position:
- the flowers are resupinate
- Lower petal strongly red-veined:
- no
- Main color of labellum:
- white
- Nectar spur:
- absent
- Number of stamens:
- 1
- Orientation of side petals:
- the lateral petals are ascending
- Sepal length:
- 5–7 mm
- Shape of viscidium:
- oval
- Spots on labellum:
- yes
-
Fruits or seeds
- Fruit length:
- Up to 8 mm
- Fruit width:
- Up to 2 mm
- Seed capsule orientation:
- the capsule points upwards or outwards
-
Growth form
- Plant height:
- 10–33 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
- Leaf arrangement:
- basal
- Leaf blade edges:
- the leaf edges are entire
- Leaf blade length:
- 15–30 mm
- Leaf blade shape:
-
- elliptic
- ovate
- Leaf blade width:
- Up to 60 mm
- Leaves during flowering:
- leaves are absent during flowering
- Number of leaves on stem:
-
- two
- three
- four
- five
-
Place
- Ecosystem type:
-
- forests
- meadows
- woodlands
- Habitat:
- terrestrial
- Location:
-
- Arizona
- New Mexico
- 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 | 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 | N/A |
Conservation status for: New Mexico | |
---|---|
Global Rank | Apparently Secure |
US Status | N/A |
New Mexico Rank | Watch List |
New Mexico Status | N/A |
Canadian Status | N/A |
Wetland Status | N/A |
Conservation status for: Texas | |
---|---|
Global Rank | Apparently Secure |
US Status | N/A |
Texas Rank | N/A |
Texas Status | N/A |
Canadian Status | N/A |
Wetland Status | N/A |