Platanthera elongata (Rydb.) R.M. Bateman
Dense Flowered Rein Orchid, Long Spurred Piperia
Facts About
Accepted Synonyms: Habenaria elegans var. elata, Habenaria longispica, Habenaria unalascensis subsp. elata, Piperia elegans var. elata, Piperia elongata
Platanthera elongata, commonly called the Dense Flowered Rein Orchid, is found across the west coast and north-western U.S. from California to Montana and in British Columbia. It flowers from May to September, producing up to 100 small green flowers per inflorescence that are lightly fragrant in the evening. It is generally found in dry pine forests and in open coastal scrub. On the California Channel Islands, Platanthera elongata tends to be smaller and to flower earlier than on the mainland.
Platanthera elongata is apparently secure globally.
Pollination
Pollinator information for this orchid has not been reported although this orchid is self-compatible.
Ecosystem Type
Forests, shrublands or thickets, woodlands
Characteristics
- Habitat:
- terrestrial
- Form of the labellum:
- the labellum is not pouch-like
- Labellum outline:
- the labellum is simple
- Main color of labellum:
- green to brown
- Nectar spur:
- present
- Inflorescence type:
- the inflorescence is a raceme
- Labellum characteristics:
- the labellum is simple
- Labellum length:
- 2.1–5 mm
- Sepal length:
- 2.4–6 mm
- Plant height:
- 14–130 cm
-
Flowers
- Flower petal color:
- green
- Flower symmetry:
- the flower is zygomorphic
- Flowering date:
-
- May
- June
- July
- August
- September
- Flowers per inflorescence:
- 1–100
- Form of the labellum:
- the labellum is not pouch-like
- Inflorescence length:
- 3.5–70 mm
- Inflorescence type:
- the inflorescence is a raceme
- Labellum characteristics:
- the labellum is simple
- Labellum length:
- 2.1–5 mm
- Labellum outline:
- the labellum is simple
- Labellum position:
- the flowers are resupinate
- Lower petal strongly red-veined:
- no
- Main color of labellum:
- green to brown
- Nectar spur:
- present
- Nectar spur length:
- 9–15 mm
- Number of stamens:
- 1
- Orientation of side petals:
-
- the lateral petals are erect
- the lateral petals are spreading
- Sepal length:
- 2.4–6 mm
- Sepals fused only to sepals:
- the sepals are separate from one another
- Shape of viscidium:
- oval
- Spots on labellum:
- no
-
Growth form
- Plant height:
- 14–130 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:
- no bract associated with flower is present
- Leaf blade length:
- 75–320 mm
- Leaf blade width:
- 10–84 mm
-
Place
- Ecosystem type:
-
- forests
- shrublands or thickets
- woodlands
- Habitat:
- terrestrial
- Location:
-
- British Columbia
- California
- Idaho
- Montana
- Oregon
- Washington
-
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 |