Flora of North America species comparison

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Goodyera oblongifolia

Orchidaceae subfam. orchidoideae

giant rattlesnake-plantain, goodyérie à feuilles oblongues, green-leaf rattlesnake-plantain, large-leaf rattlesnake orchid, Menzies' giant rattlesnake-plantain, Menzies' rattlesnake plantain, rattlesnake-plantain, western rattlesnake-plantain
Leaves

blade usually streaked with white only along midrib, sometimes with fine white lateral veins, especially near midrib, narrowly elliptic to ovate, 2.5–10.2 × 1.3–3.5 cm, apex acute.

Inflorescences

densely to loosely spiraled or secund, 10–48-flowered;

peduncle 7–38 cm.

Flowers

lateral sepals 5.7–7.8 mm;

petals connivent, hood 5–10 mm;

lip deeply concave, boat-shaped, 4.9–7.9 × 1.3–3.2 mm, margins upright or involute, apex spreading or slightly recurved, blunt, inner surface with 4 unequal rows of glandular papillae;

anther erect, base 1/3–1/2 immersed in cup-shaped clinandrium, apex acuminate;

pollinia acuminate;

rostellar beak 2-pronged, 2.3–3.6 mm, longer than body of stigma;

viscidium elongate.

2n

= 30.

Goodyera oblongifolia

Orchidaceae subfam. orchidoideae
Phenology Flowering mid Jul–mid Sep.
Habitat Moist or dry coniferous or mixed woods, in East infrequent in cedar swamps, in s Rocky Mountains confined to high elevation spruce-fir forests
Elevation 0–3400 m (0–11200 ft)
Distribution
from FNA
AK; AZ; CA; CO; ID; ME; MI; MT; NE; NM; OR; SD; UT; VT; WA; WI; WY; AB; BC; NB; NF; NS; ON; QC; SK; Mexico
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Discussion

In eastern North America, Goodyera oblongifolia is restricted to formerly glaciated areas.

Plants with leaves white-reticulate on the lateral veins have been described as Goodyera oblongifolia var. reticulata. This segregate, essentially coastal in distribution, occurs from northern California to southeastern Alaska and is less frequent inland from British Columbia to New Mexico and in Michigan and Wisconsin. Because garden transplant experiments (J. A. Calder and R. L. Taylor 1968, vol. 1) have shown that both reticulate and non-reticulate leaves are found within the same clone, varieties are not recognized.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 26, p. 515. FNA vol. 26.
Parent taxa Orchidaceae > subfam. Orchidoideae > tribe Cranichideae > subtribe Goodyerinae > Goodyera Orchidaceae
Sibling taxa
G. pubescens, G. repens, G. tesselata
Subordinate taxa
Synonyms G. decipiens, G. oblongifolia var. reticulata, Peramium decipiens
Name authority Rafinesque: Herb. Raf., 76. (1833) unknown
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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