Heterotaxis sessilis (Sw.) F.Barros
False Butterfly Orchid
Facts About
Accepted Synonyms: Dicrypta baueri, Epidendrum sessile, Maxillaria crassifolia
Heterotaxis sessilis, the False Butterfly Orchid or Hidden Orchid, is widely distributed throughout the Caribbean and Mexico and occurs in the Fakahatchee Swamp in south Florida. The growth habitat is pendulous, with the orchid hanging downward from fibrous roots attached to trunks and large branches of trees. Plants can reach a length of 30 cm. Leaves are thick and leathery, forming a fan-shaped array above the small, flattened pseudobulbs. The single, yellow flower emerges from the folded base of the leaves in autumn and flowering may continue through January. This orchid often grows on hammocks, rocks, and tree trunks in cypress swamps.
Heterotaxis sessilis is endangered in Florida although it is apparently secure across its broad range.
Pollination
This orchid is autogamous but the yellow and red flowers produce trichomes that are collected by the meliponine bees which may also pollinate the flowers.
Ecosystem Type
Swamps, woodlands
Characteristics
- Habitat:
- epiphyte
- Number of leaves on stem:
-
- 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 has one flower or a pair of flowers
- Labellum characteristics:
- the labellum is lobed
- Labellum length:
- 12–15 mm
- Sepal length:
- Up to 15 mm
- Plant height:
- Up to 30 cm
-
Flowers
- Floral bract length:
- Up to 10 mm
- Flower petal color:
- yellow
- Flower symmetry:
- the flower is zygomorphic
- Flowering date:
-
- January
- September
- October
- November
- December
- Flowers per inflorescence:
- 1–3
- Form of the labellum:
- the labellum is not pouch-like
- Hairs on inflorescence axis:
- the inflorescence stem is hairless
- Inflorescence type:
- the inflorescence has one flower or a pair of flowers
- Labellum characteristics:
- the labellum is lobed
- Labellum length:
- 12–15 mm
- Labellum outline:
- the labellum is lobed
- Labellum position:
- the flowers are resupinate
- 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 declined
- Self-pollinating flowers:
- there are cleistogamous flowers
- Sepal length:
- Up to 15 mm
- Sepals fused only to sepals:
- the sepals are separate from one another
- Spots on labellum:
- no
-
Fruits or seeds
- Fruit length:
- 25–30 mm
- Fruit width:
- Up to 8 mm
- Seed capsule orientation:
- the capsule points upwards or outwards
-
Growth form
- Epiphyte form:
- pseudobulb
- Plant height:
- Up to 30 cm
- Pseudobulb leaves:
- leaves attached to the bottom of the pseudobulb
- Pseudobulb shape:
- small and flattened, usually obscured by dried sheaths
- Pseudobulb size:
- Up to 2.5 cm
- Roots:
- the rhizomes are non-coralloid
- myco-heterotrophic or not:
- the plant is chlorophyllous
-
Leaves
- Bract relative length:
- the bract is shorter than the associated flower
- Features of leaves:
- the leaf is pleated along its length
- Leaf blade edges:
- the leaf edges are entire
- Leaf blade length:
- 30–300 mm
- Leaf blade length to width ratio:
- 3–10
- Leaf blade shape:
- linear
- Leaf blade tip:
- the tip of the leaf blade is acute
- Leaf blade width:
- 10–30 mm
- Leaves during flowering:
- leaves are present during flowering
- Number of leaves on stem:
-
- six
- seven or more
-
Place
- Ecosystem type:
-
- swamps
- woodlands
- Habitat:
- epiphyte
- 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 | Apparently Secure |
US Status | N/A |
Canadian Status | N/A |
Conservation status for: Florida | |
---|---|
Global Rank | Apparently Secure |
US Status | N/A |
Florida Rank | Highly State Rare |
Florida Status | Endangered |
Canadian Status | N/A |
Wetland Status | N/A |