Description
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Plants 18–45 cm. Leaves 2, in subequal basal pair, spreading-ascending or lying on ground; bracts 0(–1, very rarely); blade orbiculate, broadly elliptic, or obovate, 5–17 × 4–13 cm. Spikes lax. Flowers resupinate, not showy; calyx green; corolla commonly yellowish green; lateral sepals reflexed; petals narrowly lanceolate-falcate, margins entire; lip projecting to porrect, lanceolate to narrowly lance-rhombic, without basal thickening, 8–23 × 1–6 mm, margins entire; spur slenderly conic, 11–27 mm; rostellum lobes very wide-spreading, angular; pollinaria nearly straight; pollinia remaining enclosed in anther sacs; viscidia suborbiculate; ovary slender to rather stout, mostly 8–20 mm. 2n = 42.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Distribution
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Man., N.B., Nfld. and Labr. (Nfld.), N.S., Ont., P.E.I., Que.; Conn., Ill., Ind., Iowa, Maine, Mass., Mich., Minn., Ohio, Pa., N.H., N.J., N.Y., R.I., Vt., Wis.
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Flowering/Fruiting
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Flowering May--Aug.
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Habitat
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Dry to mesic coniferous and deciduous forest; mostly 0--500m.
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Synonym
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Habenaria hookeri Torrey ex A. Gray, Ann. Lyceum Nat. Hist. New York 3(first printing): 228. 1835; H. hookeri var. abbreviata Fernald; Platanthera hookeri var. abbreviata (Fernald) W. J. Schrenk
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Platanthera hookeri
provided by wikipedia EN
Platanthera hookeri, otherwise known as Hooker's orchid or Hooker's bog orchid, is a perennial wildflower in the genus Platanthera that can be found in temperate regions of North America ranging from Iowa to Newfoundland.[2]
Characteristics
Hooker's orchid prefers partial shade and is found in dry or mesic forests and either deciduous or coniferous woodlands.[2]
Leaf structure
Basal and opposite, the two leaves for this orchid are found nearly flat on the ground. The leaves are round in shape with the edges and surface being smooth but wrinkled.[2]
Pollination and flowers
Hooker's orchid flowers take bloom in June and July and are pollinated by skippers and nocturnal moths.[3][4] Though the flowers are hook-like in shape, the plant is actually named after William Jackson Hooker (1785-1865).[5] The plant typically has between 6 and 25 yellow-green, bractless flowers with the lateral petals and the dorsal sepal converging towards each other while the labellum curves upward.[2][3]
Uses
The roots of Platanthera hookeri are used to calm the nerves, to relieve urinary and gastric issues, and as a stimulant.[1]
References
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Platanthera hookeri: Brief Summary
provided by wikipedia EN
Platanthera hookeri, otherwise known as Hooker's orchid or Hooker's bog orchid, is a perennial wildflower in the genus Platanthera that can be found in temperate regions of North America ranging from Iowa to Newfoundland.
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