Southern Slender Ladies Tresses Spiranthes lacera var. gracilis
Other Common Name(s):
- Phonetic Spelling
- spy-RAN-theez LASS-er-a
- Description
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Spiranthes lacera var. gracilis, or Southern Slender Ladies Tresses, is a herbaceous, perennial, wildflower in the orchid family. The plant is native to Eastern North America, but has a widespread range and is found in a variety of open habitats, both natural and disturbed. It produces a spiral of white flowers in the summer and into the fall. Spiranthes lacera var. gracillis is one of two varieties. S. lacera var. gracillis, or Southern Slender Ladies Tresses, has dense flowers arranged in a spiral and blooming later in the season. This plant is hairless and leaves are absent at flowering. The other variety, S. lacera var. lacera, or Northern Slender Ladies Tresses has a looser spiral arrangement of flowers, blooms earlier, is hairy, and the leaves are present at flowering.
Southern Slender Ladies' Tresses produces 2-4 basal leaves which usually wither before or at the time of flowering in the summer or fall. It bears an inflorescence of up to 40 small white flowers arranged in a tight spiral. It can be distinguished from other species of Spiranthes by the distinctive green spot on its labellum and the edges are somewhat crenulate and rolled inward. It can be found in moist to dry meadows, fields, prairies, open woods, and disturbed areas such as along roadsides and in lawns. This orchid is pollinated by a variety of long tongued bees.
Insects, Diseases, and Other Plant Problems:
There are no known problems with this plant.
- See this plant in the following landscape:
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- Cultivars / Varieties:
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Attributes:
- Genus:
- Spiranthes
- Species:
- lacera
- Family:
- Orchidaceae
- Life Cycle:
- Perennial
- Recommended Propagation Strategy:
- Division
- Country Or Region Of Origin:
- Southern Ontario to Central & Eastern U.S.A
- Wildlife Value:
- bees suck nectar, while butterflies & skippers suck nectar and are non-pollinating
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Whole Plant Traits:
- Plant Type:
- Herbaceous Perennial
- Native Plant
- Wildflower
- Habit/Form:
- Erect
- Growth Rate:
- Slow
- Maintenance:
- Medium
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Cultural Conditions:
- Light:
- Full sun (6 or more hours of direct sunlight a day)
- Partial Shade (Direct sunlight only part of the day, 2-6 hours)
- Soil Texture:
- Loam (Silt)
- Sand
- Soil Drainage:
- Good Drainage
- Moist
- Occasionally Dry
- NC Region:
- Coastal
- Mountains
- Piedmont
- USDA Plant Hardiness Zone:
- 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
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Fruit:
- Display/Harvest Time:
- Winter
- Fruit Type:
- Capsule
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Flowers:
- Flower Color:
- Green
- White
- Flower Inflorescence:
- Spike
- Flower Value To Gardener:
- Long Bloom Season
- Showy
- Flower Bloom Time:
- Fall
- Summer
- Flower Shape:
- Lipped
- Flower Petals:
- 2-3 rays/petals
- Colored Sepals
- Flower Size:
- < 1 inch
- Flower Description:
- Small white flowers on a tight, single spiral that blossom from July to October. Flower lip has a green stripe.
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Leaves:
- Leaf Color:
- Green
- Deciduous Leaf Fall Color:
- Insignificant
- Leaf Type:
- Simple
- Leaf Shape:
- Ovate
- Leaf Margin:
- Crenulate
- Hairs Present:
- No
- Leaf Description:
- Three to five basal leaves often wither and are absent at flowering.
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Stem:
- Stem Is Aromatic:
- No
- Stem Bud Terminal:
- Cluster of terminal buds
- Stem Cross Section:
- Round
- Stem Form:
- Straight
- Stem Surface:
- Smooth (glabrous)
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Landscape:
- Landscape Location:
- Meadow
- Landscape Theme:
- Native Garden
- Design Feature:
- Specimen
- Attracts:
- Bees