
Stream Orchid
epipactis gigantea
The Stream Orchid, also known as the giant helleborine, is an elegant and robust wild orchid native to western North America. It stands out in the plant kingdom due to its preference for damp, riparian environments, often gracing the edges of rushing mountain streams, bubbling springs, and wet meadows. Unlike many of its tropical, tree-dwelling relatives, this orchid is terrestrial, anchoring its roots deep into the wet soils and gravel banks of temperate zones.
生息地: Found in wet habitats such as stream banks, springs, seeps, wet meadows, and moist canyon walls, often growing in sandy or gravelly soil.
外見
This species is a tall, leafy perennial growing between 30 to 100 cm in height, featuring lance-shaped, parallel-veined bright green leaves that clasp the sturdy stem. Its flowers, measuring 2 to 3 cm across, hang like delicate lanterns in loose clusters. Each flower boasts a complex color scheme of greenish-yellow sepals and petals heavily veined with reddish-brown, contrasting with a distinct pouch-like, three-lobed lower lip marked with pinkish-purple stripes and a yellow center.

カテゴリ
植物レア度
Common
危険度
1/5 · 非常に低い
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おもしろい事実
It is one of the few orchid species native to the western United States that can successfully grow directly in active, wet gravel bars.
Its species name 'gigantea' refers to the plant's tall, robust growth form compared to other members of the helleborine genus.
The orchid's nectar is known to contain natural chemical compounds that have a mildly narcotic effect on wasps, making them sluggish and improving pollination success.
特殊能力
Rhizomatous Soil Binding
Utilizes a tough, creeping network of underground rhizomes to anchor itself firmly into unstable, waterlogged stream banks, preventing erosion.
Chemical Wasp Lure
Produces a specialized sweet nectar containing chemical compounds that mimic aphid alarm pheromones, successfully attracting predatory wasps for pollination.
Mycorrhizal Dependency
Forms vital subterranean partnerships with specialized soil fungi to assist its microscopic seeds in germinating and obtaining early nutrients.
サイズと詳細
- 長さ
- 30-100 cm
- 寿命
- 5-20 年
食性と食事
The Stream Orchid is a photosynthesizing plant that produces its own sugars from sunlight, water, and carbon dioxide, while absorbing minerals through its roots.
年齢による違い: Seedlings rely entirely on nutrients supplied by mycorrhizal fungi before developing green leaves to perform photosynthesis.
主な食物
- Sunlight
- Water
- Carbon Dioxide
- Nitrogen
- Phosphorus
- Potassium
採餌方法
- Photosynthesis
生態系とのつながり
Common Western Hoverfly
Syrphus opinator
Provides energy-rich nectar to adult hoverflies, which in turn transfer pollen packets between flowers.
Tulasnella Fungus
Tulasnella calospora
Assists the orchid seeds in germination and provides nutrients to the root system.
Mule Deer
Odocoileus hemionus
Occasionally grazes on the lush green leaves and juicy stems of the plant in riparian valleys.
特徴
このオブジェクトにはまだ特徴バッジが割り当てられていません。
別名
まだ別名はありません。
コレクション
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安全性
危険度
1/5 · 非常に低い
まだ特別な安全上の注意はありません。
よくある質問
Stream Orchidを見分けるには?
Stream Orchidを識別する最も簡単な方法は、Snappit自然識別アプリを使用することです。
Stream Orchidの長さは何ですか?
30-100 cm
Stream Orchidの寿命は何ですか?
5-20 年
Stream Orchidは何を食べますか?
The Stream Orchid is a photosynthesizing plant that produces its own sugars from sunlight, water, and carbon dioxide, while absorbing minerals through its roots.
Stream Orchidは通常どこに生息していますか?
Found in wet habitats such as stream banks, springs, seeps, wet meadows, and moist canyon walls, often growing in sandy or gravelly soil.
Stream Orchidはどのように狩りをしますか?
Photosynthesis
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