White Bog-Orchid (Bruce Peninsula Orchids)

White Bog-Orchid

Platanthera dilatata

Description ⁶

Plants 11–130 cm or more. Leaves few–several, ascending to recurved-spreading, scattered along stem, gradually reduced to bracts distally; blade linear, linear-lanceolate, oblong, or oblanceolate, 3.5–32 × 0.3–7 cm. Spikes very lax to very dense. Flowers resupinate, rather showy, conspicuous, white; lateral sepals spreading to reflexed; petals ovate- to linear-lance-falcate, margins entire; lip descending or apex adhering to dorsal sepal and petal apices, linear-lanceolate to lanceolate, without basal thickening, 4–11 × 2–5 mm, base slightly rounded-dilated to orbiculate, rarely rhombic, margins entire; rostellum lobes parallel to slightly divergent, directed downward, very small, obscure, rounded; pollinaria straight; pollinia remaining enclosed in anther sacs; ovary rather slender to stout, 5–15 mm. 2n = 42.

National distribution ⁷

Canada

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Sources and Credits

(c) Ken-ichi Ueda, some rights reserved (CC BY), http://www.flickr.com/photos/18024068@N00/4762822113
(c) Stephan Summerer, some rights reserved (CC BY-NC-SA), https://www.flickr.com/photos/somebodysavedme/9373838352/
(c) Andrey Zharkikh, some rights reserved (CC BY), https://www.flickr.com/photos/zharkikh/6896357195/
(c) Andrey Zharkikh, some rights reserved (CC BY), https://www.flickr.com/photos/zharkikh/6896364633/
(c) Joshua Mayer, some rights reserved (CC BY-SA), https://www.flickr.com/photos/wackybadger/27950866605/
(c) Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/5019025
(c) NatureServe, some rights reserved (CC BY-NC), http://eol.org/data_objects/29032345

More Info

Range Map

iNat Map

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