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.

Lebensraum: Found in wet habitats such as stream banks, springs, seeps, wet meadows, and moist canyon walls, often growing in sandy or gravelly soil.

Aussehen

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.

ReichPlantaeStammTracheophytaKlasseLiliopsidaOrdnungAsparagalesFamilieOrchidaceaeGattungEpipactis

Stream Orchid

Kategorie

Pflanzen

Seltenheit

Common

Gefahr

1/5 · Sehr gering

Snaps

Mach den ersten Snap!

Interessante Fakten

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.

Besondere Fähigkeiten

Utilizes a tough, creeping network of underground rhizomes to anchor itself firmly into unstable, waterlogged stream banks, preventing erosion.

Produces a specialized sweet nectar containing chemical compounds that mimic aphid alarm pheromones, successfully attracting predatory wasps for pollination.

Forms vital subterranean partnerships with specialized soil fungi to assist its microscopic seeds in germinating and obtaining early nutrients.

Maße und Details

Länge: 30-100 cm
Lebenserwartung: 5-20 Jahre

Ernährung und Fütterung

The Stream Orchid is a photosynthesizing plant that produces its own sugars from sunlight, water, and carbon dioxide, while absorbing minerals through its roots.

Altersunterschiede: Seedlings rely entirely on nutrients supplied by mycorrhizal fungi before developing green leaves to perform photosynthesis.

Hauptnahrung

Sunlight
Water
Carbon Dioxide
Nitrogen
Phosphorus
Potassium

Nahrungssuche

Photosynthesis

Ökologische Zusammenhänge

mutualism

Common Western Hoverfly

Syrphus opinator

Provides energy-rich nectar to adult hoverflies, which in turn transfer pollen packets between flowers.

mutualism

Tulasnella Fungus

Tulasnella calospora

Assists the orchid seeds in germination and provides nutrients to the root system.

eaten by

Mule Deer

Odocoileus hemionus

Occasionally grazes on the lush green leaves and juicy stems of the plant in riparian valleys.

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Sicherheit

Gefahr

1/5 · Sehr gering

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Häufig gestellte Fragen

Wie identifiziert man Stream Orchid?

Der einfachste Weg, Stream Orchid zu bestimmen, ist die Verwendung der Naturführer-App Snappit.

Was ist der/die/das länge von Stream Orchid?

30-100 cm

Was ist der/die/das lebenserwartung von Stream Orchid?

5-20 Jahre

Was frisst Stream Orchid?

The Stream Orchid is a photosynthesizing plant that produces its own sugars from sunlight, water, and carbon dioxide, while absorbing minerals through its roots.

Wo findet man Stream Orchid normalerweise?

Found in wet habitats such as stream banks, springs, seeps, wet meadows, and moist canyon walls, often growing in sandy or gravelly soil.

Wie jagt Stream Orchid?

Photosynthesis