Comments
provided by eFloras
Isotria verticillata frequently forms extensive clones with hundreds of stems. It is pollinated by solitary bees of the Andrenidae, Anthophoridae, and Halictidae; plants are apparently self-compatible (L. A. Mehrhoff 1983). Nonflowering plants only rarely have a white, arrested floral bud (1–2 mm).
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Description
provided by eFloras
Herbs, clonal, rhizomatous, 4–40 cm. Stems purplish to brownish green, glaucous; scales 2–4, typically below soil line, purplish. Leaves green adaxially; blade oblong-lanceolate, obovate, or elliptic, 25–100 × 10–53 mm, apex obtuse to acuminate, sometimes glaucous abaxially. Flowers pedunculate, showy, sweetly fragrant, without nectar; sepals spreading, purplish brown, narrowly lanceolate, 34–67 × 2–4 mm; petals yellowish green, elliptic-obovate to elliptic-lanceolate, 15–25 × 3–7 mm; lip yellowish green to white, streaked with purple, oblong, 15–25 × 8–9 mm, lateral lobes streaked with purple, margins involute, middle lobe rounded, margins revolute, undulate; callus green, longitudinal, fleshy; column 8–12 mm; ovary 20–30 mm; rostellar flap prominent. Capsules 20–42 × 5–10 mm; pedicel of mature capsule elongating to 20–55 mm. 2n = 18.
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Distribution
provided by eFloras
Ont.; Ala., Ark., Conn., Del., Fla., Ga., Ill., Ind., Ky., La., Maine, Md., Mass., Mich., Miss., Mo., N.H., N.J., N.Y., N.C., Ohio, Okla., Pa., R.I., S.C., Tenn., Tex., Vt., Va., W.Va.
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Flowering/Fruiting
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Flowering Apr--Jun.
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Habitat
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Acidic soils, in dry to mesic forests, seeps, sphagnum bogs; 10--2000m.
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Synonym
provided by eFloras
Arethusa verticillata Muhlenberg ex Willdenow, Sp. Pl. 4(1): 81. 1805; Pogonia verticillata (Muhlenberg ex Willdenow) Nuttall
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Isotria verticillata
provided by wikipedia EN
Isotria verticillata, commonly known as the large whorled pogonia and purple fiveleaf orchid, is an orchid species native to eastern North America.
Distribution
The orchid's native range is across the Eastern United States in the Appalachian Mountains, the central and eastern Great Lakes region, and elsewhere from Maine south to Florida, and westward from Michigan south to Texas. It is also native to Ontario, Canada.
It grows in acidic soils in forests and in peat bogs.[1]
Description
Isotria verticillata is a terrestrial orchid spreading by underground rhizomes.
Its leaves are green above, waxy and a bit whitened below.
The flowers are yellowish-green, up to 110 mm (4.3 inches) across.[1]
References
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Isotria verticillata: Brief Summary
provided by wikipedia EN
Isotria verticillata, commonly known as the large whorled pogonia and purple fiveleaf orchid, is an orchid species native to eastern North America.
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