Ibidium strictum (Rydb.) House
Spiranthes stricta Rydb.
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Spiranthes romanzoffiana Cham. Hooded ladies’-tresses
Hooded ladies’-tresses are North American natives, found through much of the northern United States and Canada. They also occur in England and Ireland. They like open wet areas, including moist meadows, fens, marshes, bogs and prairies. They are often found nestled among sphagnum mosses. Plants: 2½-16″ (7-40 cm) high. Leaves: 2 to 3, rarely up to 5 Basal leaves are 2½-8″ (7-20 cm) × ⅛-⅜″ (6-12 mm). Leaves are linear or lanceolate. Flowers: Up to 40 flowers are arranged spirally around a nearly hairless spike ¾-6″ (2-14 cm) high. Sepals and petals are fused together, and ¼-⅜″ (8-12 mm) long. They appear from May to September. Sepals are broad and white. Here are some similar species: |
7/13/2015 · Mt. Mansfield, Stowe/Cambridge, Vermont · ≈ 6 × 9″ (16 × 23 cm)
7/13/2015 · Mt. Mansfield, Stowe/Cambridge, Vermont · ≈ 7 × 10″ (16 × 25 cm) |
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Spiranthes cernua |
You are here Spiranthes romanzoffiana |
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| Plant | Up to 1′ (40 cm) tall, though most of this height is the flower stalk. | 2½-16″ (7-40 cm) high. | |||||||||||||||||||||||||||
| Flowers | The raceme (flowerhead) is up to 4½″ (12 cm) high, roughly cone-shaped, on a single stem well above the leaves. Tiny white flowers about ⅜″ (1 cm) long spiral around the spike. Flowers are tubular in shape, yellow in the center, with small sharp-tipped petals. Flowers appear between August and November. | Up to 40 flowers are arranged spirally around a nearly hairless spike ¾-6″ (2-14 cm) high. Sepals and petals are fused together, and ¼-⅜″ (8-12 mm) long. They appear from May to September. Sepals are broad and white | |||||||||||||||||||||||||||
| Leaves | A few long, narrow leaves occur, mostly at the base of the plant; they are 4-8″ (10-20 cm) long and ⅛-¾″ (5-20 mm) wide. | 2 to 3, rarely up to 5 Basal leaves are 2½-8″ (7-20 cm) × ⅛-⅜″ (6-12 mm). Leaves are linear or lanceolate. | |||||||||||||||||||||||||||
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| Type | Wild | Wild | |||||||||||||||||||||||||||
Online References:
Goorchids.northamericanorchidcenter.org
References:
Clemants, Steven; Gracie, Carol, Wildflowers in the Field and Forest, Oxford University Press, 2006, p. 380
7/13/2015 · Mt. Mansfield, Stowe/Cambridge, Vermont · ≈ 7 × 10″ (16 × 25 cm) 
Spiranthes romanzoffiana description by Thomas H. Kent, last updated 31 Aug 2021.
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