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northwestern twayblade

Habit Herbs 10–30 cm tall.
Leaves

ovate to elliptic, 2.5–5 × 2–4 cm.

Inflorescences

loosely 5–20-flowered.

Flowers

sepals lanceolate, approximately 4 × 1 mm; yellowish green, widely spreading to reflexed;

petals linear, 3 × 0.5 mm; yellowish green, widely spreading to reflexed;

lip ovate, 6 × 4 mm; yellowish green; horizontal;

basal discs or glands 2; each with a small forward-thrust horn;

apex rounded or shallowly cleft;

margin entire.

Neottia banksiana

Orchidaceae tribe Neottieae subtribe Limodorinae

Distribution
[WildflowerSearch map]
Discussion

Coniferous forests, sheltered edges of meadows, roadsides. Flowering May–Sep. 100–2200m. BW, Casc, CR, Est, Sisk, WV. CA, ID, WA; north to AK, east to WY. Native.

This species has long been known by the specific epithet caurina, published by Piper in 1898; however, the epithet banksiana was published by Lindley in 1840 and therefore has priority.

Source Flora of Oregon, volume 1, page 324
James Riser
Sibling taxa
N. banksiana, N. borealis, N. convallarioides, N. cordata
Synonyms Listera banksiana, Listera caurina, Ophrys caurina
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