E-Flora BC: Electronic Atlas of the Flora of British Columbia

Platanthera elongata
tall rein orchid
Orchidaceae (Orchid family)

Introduction to Vascular Plants

© Mark Gardiner  Email the photographer   (Photo ID #56210)

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Distribution of Platanthera elongata
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Species Information

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Perennial herb from tubers, 1-4 cm long, with a few fibrous roots; stems 20-100 cm tall.
Basal 2 to 5, oblanceolate, 6-30 cm long, 1-6.5 cm wide, blunt-tipped; stem leaves bractlike.
Inflorescence a terminal, spikelike raceme, 15-30 cm long, open to densely-flowered, the flowers small, green, not scented; sepals 2-5.5 mm long, lanceolate, the upper sepal more or less erect, the lateral somewhat bent back; petals 2-5.5 mm long, sickle-shaped, usually erect; lip 2-5.5 mm long, triangular, bent back; spur 6.5-15 mm long, slender, commonly pointed downward; column oblong, about twice as long as wide.
Capsules, ascending to erect.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry forests, forest margins and shrublands in the lowland to montane zones; infrequent in S BC; S to ID, MT, OR and CA.

Source: The Illustrated Flora of British Columbia

Synonyms and Alternate Names

Piperia elongata Rydb.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References