Contains 11 accepted taxa overall.
Characteristics
Classification
Citation
PLATANTHERA Richard, Orchideis Eur. Annot. 20, 26, 35. 1817; Mem. Mus. Hist. Nat. 4: 42, 48, 57. 1818, nom. cons.
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TYPE: Platanthera bifolia (Linnaeus) Richard (Orchis bifolia Linnaeus)
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Platanthera blephariglottis var. conspicua | WHITE FRINGED ORCHID | Native Threatened-State FACW (NWPL) OBL (DEP) | ||
| Platanthera chapmanii | CHAPMAN'S FRINGED ORCHID | Native Endangered-State FACW (NWPL) OBL (DEP) | ||
| Platanthera ciliaris | YELLOW FRINGED ORCHID | Native Threatened-State FACW (NWPL) OBL (DEP) | ||
| Platanthera clavellata | GREEN WOOD ORCHID; GREEN REINORCHID | Native Endangered-State OBL (NWPL) OBL (DEP) | ||
| Platanthera cristata | CRESTED YELLOW ORCHID; CRESTED FRINGED ORCHID | Native Threatened-State OBL (NWPL) OBL (DEP) | ||
| Platanthera flava | SOUTHERN TUBERCLED ORCHID; PALEGREEN ORCHID; GYPSY-SPIKES | Native Threatened-State FACW (NWPL) OBL (DEP) | ||
| Platanthera integra | ORANGE REINORCHID; YELLOW FRINGELESS ORCHID | Native Endangered-State OBL (NWPL) OBL (DEP) | ||
| Platanthera nivea | SNOWY ORCHID | Native Threatened-State FACW (NWPL) OBL (DEP) | ||
| Platanthera x bicolor | Native OBL (DEP) | |||
| Platanthera x canbyi | Native OBL (DEP) | |||
| Platanthera x channellii | Native |
[Family identification key]
1. Lip entire, auriculate, lobed, or shallowly erose to lacerate
2
1. Lip margin strongly fimbriate
5
2. Lip at the upper part of the flower (resupinate); sepals and petals white; lip entire, unlobed
2. Lip at the lower part of the flower (not resupinate); sepals and petals XX; lip auriculate, lobed, or shallowly erose to lacerate
3
3. Inflorescence internodes obscured by the densely congested flowers; sepals and petals bright yellow to orange; lip shallowly erose to lacerate
3. Inflorescence internodes visible, the flowers sparse along the rachis; sepals and petals white, pale yellow, to greenish; lip auriculate or lobed
3
4. Lip without auricles or tubercles, apex shallowly 3-lobed
4. Lip with a basal pair of auricles or tubercles, apex rounded to emarginate
5. Sepals and petals white
5. Sepals and petals mostly or partly pale yellow to orange or off-white
6
6. Spur 20-35 mm long, exceeding the ovary; rostellum lobes triangular, apices directed forward (column appearing acute in lateral view)
6. Spur 4-17 mm long, subequal or shorter than the ovary; rostellum lobes slender, directed downward toward apices (column appearing truncate in lateral view), straight to distally retrorse
7
7. Spur 8–17 mm (subequal to the ovary), its mouth nearly circular; rostellum lobes strongly retrorsely curved toward apices; viscidia presented downward and approximately parallel to lip
7. Spur 4–10 mm (usually shorter than the ovary), its mouth triangular or keyhole-shaped; rostellum lobes scarcely to strongly curved; viscidia presented forward, nearly perpendicular to approximately parallel to lip
1. Hybrid taxa (blephariglottis x cristata; P. lueri)
2. (blephariglottis x chapmanii)
3. (blephariglottis x cristata; P. beckneri)
4. (ciliaris x cristata)
5. (chapmanii x cristata)
6. (chapmanii x ciliaris)
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| Blephariglotis | Blephariglotis Rafinesque, Fl. Tellur. 2: 38. 1837 ("1836"). | TYPE: Blephariglotis albiflora Rafinesque, nom. illegit. (Orchis blephariglottis Willdenow) Lectotypified by Britton & A. Brown, Ill. Fl. N. U.S., ed. 2. 1: 556. 1913. | |
| Conopsidium | Conopsidium Wallroth, Beitr. Bot. 101. 1842. | TYPE: = Platanthera Richard 1817. | |
| Denslovia | Denslovia Rydberg, Brittonia 1: 85. 1931. | TYPE: Denslovia clavellata (Michaux) Rydberg (Orchis clavellata Michaux) | |
| Gymnadeniopsis | Gymnadeniopsis Rydberg, in Britton, Man. Fl. N. States 293. 1901. | TYPE: Gymnadeniopsis nivea (Nuttall) Rydberg (Orchis nivea Nuttall) Lectotypified by Britton & A. Brown, Ill. Fl. N. U.S., ed. 2. 1: 552. 1913. | |
| Lysias | Lysias Salisbury ex Rydberg, Mem. New York Bot. Gard. 1: 103. 1900. | TYPE: = Platanthera Richard 1817. |