Savanna Camas Stenanthium densum
Other Common Name(s):
Previously known as:
- Tracyanthus angustifolius
- Zigadenus densus
- Phonetic Spelling
- sten-ANTH-ee-um DEN-sum
- This plant has high severity poison characteristics.
- See below
- Description
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Crow-poisoon or Osceola's plume is an herbaceous perennial wildflower in the trillium family (Melanthiaceae). The species epithet means "dense." The common name of Osceola's Plume refers to its plume of flowers. Another common name, crow-poison, is derived from its poisonous nature. This native plant can be found growing throughout a large portion of the Southeastern Coastal Plains in moist open savannas, wet flat woods, bogs, and pinelands. In North Carolina, it occurs throughout the southern and central Coastal Plain.
This long-lived native perennial wildflower naturalizes easily in its native habitat. It's a wild species that may be difficult to find in cultivation. Unlike other plants of this species that bloom in the summer, this plant blooms in the spring months.
The showy flowers begin forming and blooming near the bottom of the stem, working their way upwards. Older flowers may turn a rich rose-red to purple as they age. From a distance, the closely held flowers appear as a fluffy plume. Following a fire, this plant can be more noticeable and does favor locations where prescribed burns have been completed.
This plant belongs to a group of plants known as 'death camas'. It is said to be the most toxic. The foliage can cause death to livestock that graze on this plant. The bulb, which resembles an onion, is also toxic, and can cause death if ingested. Caution should be used when grazing animals or family pets are in the vicinity of these plants.
It dies to the ground in the winter months, then come springtime, a whirl of long, thin leaves emerges. From the leaves a mostly leafless stem grows up to 5' tall.
Insects, Diseases, and Other Plant Problems: If ingested, the foliage and bulbs are both toxic to grazing animals and family pets.
- 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:
- Stenanthium
- Species:
- densum
- Family:
- Melanthiaceae
- Uses (Ethnobotany):
- Wildflower
- Life Cycle:
- Perennial
- Recommended Propagation Strategy:
- Division
- Seed
- Country Or Region Of Origin:
- Southeastern and central U.S.A.
- Distribution:
- AL, FL, GA, MS, NC, SC, TX, VA
- Wildlife Value:
- Pollinators are attracted to the flowers.
- Play Value:
- Attractive Flowers
- Attracts Pollinators
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Whole Plant Traits:
- Plant Type:
- Herbaceous Perennial
- Native Plant
- Poisonous
- Wildflower
- Woody Plant Leaf Characteristics:
- Deciduous
- Habit/Form:
- Dense
- Erect
- Maintenance:
- Medium
- Texture:
- 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:
- Sand
- Soil pH:
- Acid (<6.0)
- Soil Drainage:
- Good Drainage
- Moist
- Occasionally Wet
- Available Space To Plant:
- 12 inches-3 feet
- NC Region:
- Coastal
- USDA Plant Hardiness Zone:
- 8b, 9a, 9b, 10a, 10b, 11a, 11b
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Fruit:
- Fruit Color:
- Brown/Copper
- Display/Harvest Time:
- Summer
- Fruit Type:
- Capsule
- Fruit Description:
- Dark brown capsules display from May to July, attracting pollinators.
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Flowers:
- Flower Color:
- Green
- White
- Flower Inflorescence:
- Raceme
- Spike
- Flower Value To Gardener:
- Showy
- Flower Bloom Time:
- Spring
- Summer
- Flower Shape:
- Star
- Flower Petals:
- 6 petals/rays
- Flower Size:
- < 1 inch
- Flower Description:
- Creating a fluffy plume, small white 6-petaled flowers are attached to a 3'-5' stalk. They bloom from April to June. Flowering will begin at the bottom of the stalk going upwards.
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Leaves:
- Woody Plant Leaf Characteristics:
- Deciduous
- Leaf Color:
- Green
- Leaf Type:
- Simple
- Leaf Arrangement:
- Alternate
- Leaf Shape:
- Lanceolate
- Linear
- Hairs Present:
- No
- Leaf Length:
- > 6 inches
- Leaf Width:
- < 1 inch
- Leaf Description:
- The basal leaves are the prominent leaves and are needle or grass like. Other leaves appear along the stem are few and far between.
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Stem:
- Stem Is Aromatic:
- No
- Stem Form:
- Straight
- Stem Surface:
- Smooth (glabrous)
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Landscape:
- Landscape Location:
- Naturalized Area
- Landscape Theme:
- Native Garden
- Pollinator Garden
- Rain Garden
- Water Garden
- Attracts:
- Pollinators
- Problems:
- Poisonous to Humans
- Problem for Cats
- Problem for Children
- Problem for Dogs
- Problem for Horses
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Poisonous to Humans:
- Poison Severity:
- High
- Poison Symptoms:
- Onion-like bulbs may cause death in humans and are likely to cause death in livestock and pets. Symptoms may include nausea, vomiting, muscle spasms, and irregular heartbeat. It can also cause a coma.
- Poison Toxic Principle:
- Alkaloids, namely zygacine, which interfere with the function of sodium channels
- Causes Contact Dermatitis:
- No
- Poison Part:
- Roots