Triphora yucatanensis Ames
Rickett's Noddingcaps
Facts About
Accepted Synonyms: Pogonia yucatanensis, Triphora rickettii
Triphora yucatanensis, commonly known as Rickett's Noddingcaps, is one of three orchids in this genus endemic to Florida. This orchid is 8-20 cm tall and produces 5-10 dark green leaves that alternate on a green, suffused with purple stem. The inflorescence develops in July through October and has 1-8 pale greenish-yellow flowers that never fully open. Restricted to a few sites in central Florida, this orchid grows in deciduous and mixed damp woodlands. Its primary habitat has been heavily impacted by agriculture and development.
Triphora yucatanensis is considered critically imperiled.
Ecosystem Type
Forests, shrublands or thickets, woodlands
Characteristics
- Habitat:
- terrestrial
- Leaf arrangement:
- alternate
- Number of leaves on stem:
-
- five
- six
- seven or more
- Form of the labellum:
- the labellum is not pouch-like
- Labellum outline:
- the labellum is lobed
- Main color of labellum:
- yellow
- Nectar spur:
- absent
- Inflorescence type:
- the inflorescence is a raceme
- Labellum characteristics:
- the labellum is lobed
- Labellum length:
- Up to 6 mm
- Sepal length:
- Up to 8 mm
- Plant height:
- 8–20 cm
-
Flowers
- Flower petal color:
- yellow
- Flower symmetry:
- the flower is zygomorphic
- Flowering date:
-
- July
- August
- September
- October
- Flowers per inflorescence:
- 1–8
- 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 is lobed
- Labellum length:
- Up to 6 mm
- Labellum outline:
- the labellum is lobed
- Labellum position:
- the flowers are non-resupinate
- Length of narrowed base of lower petal:
- Up to 4 mm
- Lower petal strongly red-veined:
- no
- Main color of labellum:
- yellow
- Nectar spur:
- absent
- Number of stamens:
- 1
- Orientation of side petals:
- the lateral petals are ascending
- Self-pollinating flowers:
- there are no cleistogamous flowers
- Sepal length:
- Up to 8 mm
- Sepals fused only to sepals:
- the sepals are separate from one another
- Spots on labellum:
- no
-
Fruits or seeds
- Fruit length:
- Up to 15 mm
- Fruit width:
- Up to 8 mm
- Seed capsule orientation:
- the capsule points upwards or outwards
-
Growth form
- Plant height:
- 8–20 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:
- bracts may be variable, both longer and shorter than the flower
- Leaf arrangement:
- alternate
- Leaf blade edges:
- the leaf edges are entire
- Leaf blade length:
- 10–20 mm
- Leaf blade length to width ratio:
- Up to 1
- Leaf blade shape:
- ovate
- Leaf blade tip:
- the tip of the leaf blade is acuminate
- Leaf blade width:
- 10–20 mm
- Leaves during flowering:
- leaves are present during flowering
- Number of leaves on stem:
-
- five
- six
- seven or more
-
Place
- Ecosystem type:
-
- forests
- shrublands or thickets
- woodlands
- Habitat:
- terrestrial
- Location:
- Florida
-
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: Florida | |
---|---|
Global Rank | Critically Imperiled |
US Status | N/A |
Florida Rank | Highly State Rare |
Florida Status | N/A |
Canadian Status | N/A |
Wetland Status | N/A |