Bletia colemanii (Catling) Sosa & M.W. Chase
Coleman's Coral Root
Facts About
Accepted Synonyms: Hexalectris colemanii, Hexalectris revoluta var. colemanii
Bletia colemanii, Coleman's Coral Root, is a rare species believed to be endemic to southern Arizona until populations were recently discovered along the border in southwestern New Mexico. This leafless orchid has rolled back sepals and lateral petals that closely resemble B. revoluta and was formerly considered a variety of this species, until DNA analysis demonstrated a separate species designation is warranted. B. colemanii grows in oak woodlands on the edge of canyon bottoms and on slopes leading up from the canyon.
Bletia colemanii is considered imperiled. Mining, livestock grazing, nonnative invasive plant species, wildfire, drought, and climate change have been identified as potential threats to this orchid. The U.S. Fish and Wildlife Service has reviewed its status and determined that listing B. colemanii as threatened or endangered under the Endangered Species Act is not warranted at this time.
Ecosystem Type
Woodlands
Characteristics
- Habitat:
- terrestrial
- Leaf arrangement:
- this plant has no leaves
- Form of the labellum:
- the labellum is not pouch-like
- Main color of labellum:
-
- other
- white
- Nectar spur:
- absent
- Inflorescence type:
- the inflorescence is a raceme
- Labellum characteristics:
- the labellum is lobed
- Labellum length:
- Up to 15 mm
-
Flowers
- Floral bract length:
- Up to 8 mm
- Flower petal color:
-
- brown
- white
- Flower symmetry:
- the flower is zygomorphic
- Flowering date:
-
- May
- June
- Flowers per inflorescence:
- 10–20
- Form of the labellum:
- the labellum is not pouch-like
- Hairs on inflorescence axis:
- the inflorescence stem is hairless
- Inflorescence type:
- the inflorescence is a raceme
- Labellum characteristics:
- the labellum is lobed
- Labellum length:
- Up to 15 mm
- Labellum position:
- the flowers are resupinate
- Main color of labellum:
-
- other
- white
- Nectar spur:
- absent
- Number of stamens:
- 1
- Orientation of side petals:
- the lateral petals are spreading
- Self-pollinating flowers:
- there are no cleistogamous flowers
- Sepals fused only to sepals:
- the sepals are separate from one another
-
Fruits or seeds
- Seed capsule orientation:
- the capsule bends downwards
-
Growth form
- Roots:
- the rhizomes are non-coralloid
- Underground organs:
- this plant has a rhizome
- myco-heterotrophic or not:
- the plant is achlorophyllous
-
Leaves
- Leaf arrangement:
- this plant has no leaves
-
Place
- Ecosystem type:
- woodlands
- 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 | Imperiled |
US Status | N/A |
Canadian Status | N/A |
Conservation status for: Arizona | |
---|---|
Global Rank | Imperiled |
US Status | N/A |
Arizona Rank | State Rare |
Arizona Status | N/A |
Canadian Status | N/A |
Wetland Status | N/A |
Conservation status for: New Mexico | |
---|---|
Global Rank | Imperiled |
US Status | N/A |
New Mexico Rank | N/A |
New Mexico Status | N/A |
Canadian Status | N/A |
Wetland Status | N/A |