Isotria verticillata
Common Name(s):
- Phonetic Spelling
- eye-SOH-tree-uh ver-ti-si-LAH-tuh
- Description
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Isotria verticillata, commonly known as the large whorled pogonia, is a terrestrial flowering plant in the Orchidaceae family. Five wide stalkless leaves at the end of a stem growing up to 15 inches tall surround the flower. The large whorled pogonia produces green or yellow blooms with three long madder-purple sepals during late spring and early summer. This plant can mainly be found in dry areas of rich acidic soils including forests, woodlands, and occasionally in bogs where it can grow in sun, part shade and shade. Native to Canada and the United States its range spans south from Nova Scotia into the middle and eastern United States to Texas and Florida in the suitable woodland conditions.
- See this plant in the following landscape:
- Cultivars / Varieties:
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- Tags:
- Cultivars / Varieties:
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- Tags:
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Attributes:
- Genus:
- Isotria
- Species:
- verticillata
- Family:
- Orchidaceae
- Life Cycle:
- Perennial
- Country Or Region Of Origin:
- South East Ontario to Central & Eastern U.S.A
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Whole Plant Traits:
- Plant Type:
- Native Plant
- Perennial
- Wildflower
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Cultural Conditions:
- Light:
- Deep shade (Less than 2 hours to no direct sunlight)
- Full sun (6 or more hours of direct sunlight a day)
- Partial Shade (Direct sunlight only part of the day, 2-6 hours)
- NC Region:
- Mountains
- Piedmont
- USDA Plant Hardiness Zone:
- 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b
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Flowers:
- Flower Color:
- Gold/Yellow
- Green
- Flower Bloom Time:
- Spring
- Summer
- Flower Shape:
- Lipped
- Flower Petals:
- Colored Sepals
- Flower Size:
- 1-3 inches
- Flower Description:
- Single, lipped, greenish yellow flower with three long madder-purple sepals; 1.5-2.5 in. long; arise from center of the leaf whorl from late spring to early summer.
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Leaves:
- Leaf Color:
- Green
- Leaf Arrangement:
- Whorled
- Leaf Shape:
- Elliptical
- Lanceolate
- Obovate
- Hairs Present:
- No
- Leaf Length:
- 1-3 inches
- Leaf Description:
- Whorl of five wide stalkless leaves at end of a 4-12 in. stem; parallel veins
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Stem:
- Stem Is Aromatic:
- No
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Landscape:
- Landscape Location:
- Woodland
- Landscape Theme:
- Native Garden
- Shade Garden
