Flora of North America species comparison

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Pogonia ophioglossoides

Adder's-mouth, pogonie langue-de-serpent, rose pogonia, Snake mouth orchid
Habit Plants 4–70 cm.
Leaves

blade elliptic, narrowly lanceolate, lance-ovate, or oblong, 14–120 × 4–32 mm.
Inflorescences

floral bracts conspicuous, foliaceous, 7–37 × 2–12 mm.
Flowers

solitary or 2-flowered raceme, pink or rarely white or bluish, gaping, showy;

sepals oblong, oblong-elliptic, or narrowly lanceolate, 14–23 × 3–7 mm;

petals elliptic to lance-obovate, 13–25 × 3–11 mm;

lip spatulate, 12–25 × 4–10 mm, margins involute, lacerate;

crest often white, yellow, or green toward base.
Capsules

erect, ellipsoid, 14–30 × 4–8 mm.
2n

= 18.

Pogonia ophioglossoides
Phenology Flowering spring–summer.
Habitat Sphagnum bogs, poor fens, moist acidic sandy meadows and prairies, open wet woods, wet pine flatwoods, pine savannas, cypress swamps, sandy-peaty stream banks, seepage slopes, ditches, roadcuts, rarely calcareous fens
Elevation 0–1100 m (0–3600 ft)
Distribution
from FNA
AL; AR; CT; DC; DE; FL; GA; IL; IN; LA; MA; MD; ME; MI; MN; MO; MS; NC; ND; NH; NJ; NY; OH; OK; PA; RI; SC; TN; TX; VA; VT; WI; WV; MB; NB; NF; NS; ON; PE; QC; SPM
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 26, p. 514.
Parent taxa Orchidaceae > subfam. Vanilloideae > tribe Vanilleae > subtribe Pogoniinae > Pogonia
Synonyms Arethusa ophioglossoides, P. ophioglossoides var. brachypogon
Name authority (Linnaeus) Ker Gawler: Bot. Reg. 2: plate 148. (1816)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

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