Goodyera tesselata |
Goodyera oblongifolia |
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checkered rattlesnake-plantain, goodyérie panachée |
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 |
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Leaves | blade with lateral veins and sometimes midrib prominently to faintly bordered with bands of white, gray, or paler green tissue frequently merging, giving leaf rather blotched appearance, especially near margins and apex where veins are closer together, infrequently uniformly green or with only midrib whitened, narrowly elliptic to ovate, 1.4–5.5 × 0.9–2.6 cm, apex usually acute. |
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, 5–72-flowered; peduncle 6–23 cm. |
densely to loosely spiraled or secund, 10–48-flowered; peduncle 7–38 cm. |
Flowers | lateral sepals 3.8–6 mm; petals connivent; hood 3.9–7.1 mm; lip deeply concave to saccate, 3–5.5 × 1.2–3.1 mm, apex spreading or recurved, blunt or acute, inner surface with 2 or 4 unequal rows of glandular papillae; anther erect, base 0–1/3 immersed in shallowly concave to cup-shaped clinandrium, apex apiculate to acuminate; pollinia acute or short-acuminate; rostellar beak 2-pronged, 0.6–1.7 mm, equal to or longer than body of stigma; viscidium elliptic. |
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 | = 45, 60. |
= 30. |
Goodyera tesselata |
Goodyera oblongifolia |
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Phenology | Flowering mid Jul–early Sep. | Flowering mid Jul–mid Sep. |
Habitat | More common in dry or moist, upland, coniferous or mixed woods, less frequent in white-cedar swamps, margins of spruce-tamarack bogs | 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 | 0–300 m (0–1000 ft) | 0–3400 m (0–11200 ft) |
Distribution |
CT; MA; MD; ME; MI; MN; NH; NJ; NY; OH; PA; RI; VT; WI; MB; NB; NF; NS; ON; PE; QC
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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 | Goodyera tesselata is almost completely restricted to once-glaciated areas in the Great Lakes region, the northeastern United States, and adjacent Canada. Goodyera tesselata tends to be taller and to have larger leaves, more cauline bracts, more flowers, and longer perianths than Goodyera repens. Although overlap exists in any count or measurement, the two are, for the most part, easily distinguishable. Some of the difficulty in identifying ambiguous specimens is explained by the hypothesis (J. A. Kallunki 1976) that G. tesselata itself is intermediate between and a probable allotetraploid of G. repens with white-reticulate leaves and G. oblongifolia. Because the tetraploids and the triploid hybrids (2n = ca. 45) cannot be distinguished with certainty by their morphology, the description here includes individuals of both tetraploid and triploid individuals. In the extreme, individuals of G. tesselata (in the broad sense) approach G. repens more often than G. oblongifolia, and it is sometimes impossible to distinguish some triploids from G. repens with white-reticulate leaves. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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. 516. | FNA vol. 26, p. 515. |
Parent taxa | Orchidaceae > subfam. Orchidoideae > tribe Cranichideae > subtribe Goodyerinae > Goodyera | Orchidaceae > subfam. Orchidoideae > tribe Cranichideae > subtribe Goodyerinae > Goodyera |
Sibling taxa | ||
Synonyms | Peramium tesselatum | G. decipiens, G. oblongifolia var. reticulata, Peramium decipiens |
Name authority | Loddiges: Bot. Cab. 10: plate 952. (1824) | Rafinesque: Herb. Raf., 76. (1833) |
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