• Photo of Amianthium muscitoxicum (Amianthium muscitoxicums)

Plant Profile: Amianthium muscitoxicum

Taxonomy: Amianthium muscitoxicum

Names

Crow Poison, Fly Poison, Stagger Grass

  • Photo of Amianthium muscitoxicum (Amianthium muscitoxicums)

Phonetic Spelling:am-ee-AN-thee-um mus-kai-TOKS-ee-kum

Genus:Amianthium

Species:muscitoxicum

Family:Melanthiaceae

The plant commonly referred to as "fly poison" derives its name from its intended use: to eliminate flies by grinding certain parts of the plant—primarily the bulb—and mixing it with sugar. However, this plant, including its bulb, is toxic not only to flies but also to humans and animals, particularly livestock. The bulb of Amianthium muscitoxicum is highly poisonous, as all parts of the plant contain harmful alkaloids. The species name "muscitoxicum" is derived from Latin, meaning "flies" and "poison" (from muscae and toxicum). This plant can be propagated either by dividing its roots or by seeds, with root division being the simpler method.

Another name for this plant, "Stagger Grass," reflects the staggering effect it can have on cattle after ingestion, which can even lead to their death.

Visually, it resembles Xerophyllum asphodeloides, Xerophyllum tenax, hyacinths, and the flowers of the butterfly bush.

This plant thrives in moist woodlands, particularly in oak forests, bogs, low pinelands, savannas, meadows, and sandhills, preferring a few hours of sunlight each day.

There are no notable issues with insects, diseases, or other plant-related problems affecting it.

Amianthium muscitoxicum Feature Summary

Amianthium muscitoxicum Image Gallery

Tags

#purple
#white
#poisonous
#drought tolerant
#cream
#white flowers
#green
#purple flowers
#green flowers
#NC native
#deer resistant
#cream flowers
#native wildflower
#wildflower garden
#native
#partial shade tolerant
#bog gardens
#meadows
#woodlands

Similar Plants

Amianthium muscitoxicum is often confused with:

Amianthium muscitoxicum Feature Summary

Attributes
E. Central & E. U.S.A
AL, AR, DE, FL, GA, KY, LA, MD, MO, MS, NC, NJ, NY, OK, PA, SC, TN, VA, WV
Some butterflies eat the nectar of the plant.
occassional flooding, deer resistant, partially drought tolerant
Not edible
Perennial
Attracts Pollinators
Textural
Attractive Flowers
Fruit
The plant has three-beaked, dark brown capsule containing red seeds. The fruit is bright orange.
Red/Burgundy
Brown/Copper
Orange
Flowers
The season is in the early summer. Flowers can feel sticky. The clusters of flowers as a whole can be anywhere from 2- 6 inches. The blossoms are white until they are pollinated when they turn pale green. They will bloom from April to June. The plant has a dense, cylindrical cluster of .5-in., creamy white flowers on top of a mostly leafless stem. The flowers persist and turn green to greenish-purple with age. There is a leafless flower stalk.
White
Green
Spring
Summer
6 petals/rays
< 1 inch
Leaves
The plant has 15 to 20 inches long, grasslike, veined, basal leaves with center rib and blunt tips.
Linear
Lanceolate
> 6 inches
Stem
The stem is erect and unbranched.
Smooth (glabrous)
Straight
Poisonous to Humans
CAN BE FATAL IF INGESTED! All parts of the plant, including the bulb, are poisonous. This tends to be a problem for livestock, although this plant is also poisonous to humans and other animals. Depending on how much is eaten and other factors, symptoms for livestock could include producing more saliva than normal, vomiting, being clumsy when trying to move, weakness, not being able to move well, struggling to breathe, having hemorrhages, or dying (generally because too much struggle breathing). Symptoms may last 2 days.
toxic alkaloids (similar to neurotoxins)
Seeds
Leaves
Stems
Flowers
Bark
Fruits
Roots
Whole Plant Traits
Perennial
Native Plant
Wildflower
Herb
Bulb
Cultural Conditions
Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Acid (<6.0)
Neutral (6.0-8.0)
Coastal
Mountains
Piedmont
4a
4b
5b
5a
6a
6b
7a
7b
8b
8a
9a
9b
Clay
Loam (Silt)
Sand
Landscape
Pollinator Garden
Native Garden
Border
Mass Planting
Accent
Woodland
Meadow
Naturalized Area
Pond
Butterflies
Hummingbirds
Poisonous to Humans
Problem for Cats
Problem for Dogs
Problem for Horses
Problem for Children

Amianthium muscitoxicum Attributes

Amianthium muscitoxicum: Country Or Region Of Origin

E. Central & E. U.S.A

Amianthium muscitoxicum: Distribution

AL, AR, DE, FL, GA, KY, LA, MD, MO, MS, NC, NJ, NY, OK, PA, SC, TN, VA, WV

Amianthium muscitoxicum: Wildlife Value

Some butterflies eat the nectar of the plant.

Amianthium muscitoxicum: Particularly Resistant To (Insects/Diseases/Other Problems)

occassional flooding, deer resistant, partially drought tolerant

Amianthium muscitoxicum: Edibility

Not edible

Amianthium muscitoxicum: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Amianthium muscitoxicum: Recommended Propagation Strategy

Division
Grafting
Layering
Leaf Cutting
Root Cutting
Seed
Stem Cutting

Amianthium muscitoxicum: Play Value

Attractive Flowers
Attracts Pollinators
Buffer
Colorful
Defines Paths
Easy to Grow
Edible fruit
Fragrance
Pieces Used in Games
Screening
Shade
Sound
Textural
Wildlife Cover/Habitat
Wildlife Food Source
Wildlife Larval Host
Wildlife Nesting
Wind Break
Wind Shimmer

Amianthium muscitoxicum Fruit

Amianthium muscitoxicum: Fruit Description

The plant has three-beaked, dark brown capsule containing red seeds. The fruit is bright orange.

Amianthium muscitoxicum: Fruit Type

Achene
Aggregate
Berry
Capsule
Caryopsis
Drupe
Follicle
Legume
Nut
Pome
Samara
Schizocarp
Siliqua

Amianthium muscitoxicum: Fruit Color

grass
Brown/Copper
grass
Orange
grass
Red/Burgundy

Amianthium muscitoxicum: Fruit Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long Bloom Season
Long-lasting
Showy

Amianthium muscitoxicum Flowers

Amianthium muscitoxicum: Flower Description

The season is in the early summer. Flowers can feel sticky. The clusters of flowers as a whole can be anywhere from 2- 6 inches. The blossoms are white until they are pollinated when they turn pale green. They will bloom from April to June. The plant has a dense, cylindrical cluster of .5-in., creamy white flowers on top of a mostly leafless stem. The flowers persist and turn green to greenish-purple with age. There is a leafless flower stalk.

Amianthium muscitoxicum: Flower Color

filter_vintage
Green
filter_vintage
White

Amianthium muscitoxicum: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Amianthium muscitoxicum: Flower Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long Bloom Season
Long-lasting
Showy

Amianthium muscitoxicum: Flower Bloom Time

Winter
Spring
Summer
Fall

Amianthium muscitoxicum: Flower Petals

2-3 rays/petals
4-5 petals/rays
6 petals/rays
7 - 20 petals/rays
asymmetrical petals
Bracts
Colored Sepals
fused petals
more than 20 petals/rays
Tepals

Amianthium muscitoxicum: Flower Shape

Bell
Cross
Crown
Cup
Dome
Funnel
Irregular
Lipped
Radial
Saucer
Star
Trumpet
Tubular
Urn
Wheel

Amianthium muscitoxicum: Flower Size

1-3 inches
3-6 inches
< 1 inch
> 6 inches

Amianthium muscitoxicum Leaves

Amianthium muscitoxicum: Leaf Description

The plant has 15 to 20 inches long, grasslike, veined, basal leaves with center rib and blunt tips.

Amianthium muscitoxicum: Leaf Color

spa
Green

Amianthium muscitoxicum: Leaf Type

Compound (Pinnately , Bipinnately, Palmately)
Fronds
Needles
Sheath
Simple

Amianthium muscitoxicum: Leaf Shape

Acicular
Auriculate
Cordate
Cuneate
Deltoid
Elliptical
Filiform
Lanceolate
Linear
Oblanceolate
Oblong
Obovate
Obtuse
Orbicular
Ovate
Palmasect
Palmatifid
Peltate
Pinnatifid
Pinnatisect
Reniform
Rhomboidal
Spatulate
Subcordate
Subulate

Amianthium muscitoxicum: Hairs Present

No
Yes

Amianthium muscitoxicum: Leaf Length

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Amianthium muscitoxicum: Leaf Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long-lasting
Showy

Amianthium muscitoxicum Stem

Amianthium muscitoxicum: Stem Description

The stem is erect and unbranched.

Amianthium muscitoxicum: Stem Color

grass
Green

Amianthium muscitoxicum: Stem Is Aromatic

No
Yes

Amianthium muscitoxicum: Stem Surface

Corky Ridges
Covered with a powdery bloom (glaucous)
Dull
Hairy (pubescent)
Polished
Smooth (glabrous)

Amianthium muscitoxicum: Stem Form

Straight
Zig Zags

Amianthium muscitoxicum Poisonous to Humans

Amianthium muscitoxicum: Poison Symptoms

CAN BE FATAL IF INGESTED! All parts of the plant, including the bulb, are poisonous. This tends to be a problem for livestock, although this plant is also poisonous to humans and other animals. Depending on how much is eaten and other factors, symptoms for livestock could include producing more saliva than normal, vomiting, being clumsy when trying to move, weakness, not being able to move well, struggling to breathe, having hemorrhages, or dying (generally because too much struggle breathing). Symptoms may last 2 days.

Amianthium muscitoxicum: Poison Toxic Principle

toxic alkaloids (similar to neurotoxins)

Amianthium muscitoxicum: Poison Severity

High
Low
Medium

Amianthium muscitoxicum: Causes Contact Dermatitis

No
Yes

Amianthium muscitoxicum: Poison Part

Bark
Flowers
Fruits
Leaves
Roots
Sap/Juice
Seeds
Stems

Amianthium muscitoxicum Whole Plant Traits

Amianthium muscitoxicum: Plant Type

Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower

Amianthium muscitoxicum: Habit/Form

Arching
Ascending
Broad
Cascading
Climbing
Clumping
Columnar
Conical
Creeping
Dense
Erect
Horizontal
Irregular
Mounding
Multi-stemmed
Multi-trunked
Open
Oval
Prostrate
Pyramidal
Rounded
Spreading
Vase
Weeping

Amianthium muscitoxicum Cultural Conditions

Amianthium muscitoxicum: Light

Dappled Sunlight (Shade through upper canopy all day)
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)

Amianthium muscitoxicum: Soil pH

Acid (<6.0)
Alkaline (>8.0)
Neutral (6.0-8.0)

Amianthium muscitoxicum: Soil Drainage

Frequent Standing Water
Good Drainage
Moist
Occasional Flooding
Occasionally Dry
Occasionally Wet
Very Dry

Amianthium muscitoxicum: Available Space To Plant

12 inches-3 feet
12-24 feet
24-60 feet
3 feet-6 feet
6-feet-12 feet
Less than 12 inches
more than 60 feet

Amianthium muscitoxicum: NC Region

Coastal
Mountains
Piedmont

Amianthium muscitoxicum: USDA Plant Hardiness Zone

thermostat
4a
thermostat
4b
thermostat
5a
thermostat
5b
thermostat
6a
thermostat
6b
thermostat
7a
thermostat
7b
thermostat
8a
thermostat
8b
thermostat
9a
thermostat
9b

Amianthium muscitoxicum: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Amianthium muscitoxicum Landscape

Amianthium muscitoxicum: Landscape Theme

Asian Garden
Butterfly Garden
Children's Garden
Cottage Garden
Cutting Garden
Drought Tolerant Garden
Edible Garden
English Garden
Fairy Garden
Garden for the Blind
Native Garden
Nighttime Garden
Pollinator Garden
Rain Garden
Rock Garden
Shade Garden
Water Garden
Winter Garden

Amianthium muscitoxicum: Design Feature

Accent
Barrier
Border
Flowering Tree
Foundation Planting
Hedge
Mass Planting
Screen/Privacy
Security
Shade Tree
Small groups
Small Tree
Specimen
Street Tree
Understory Tree

Amianthium muscitoxicum: Resistance To Challenges

Black Walnut
Compaction
Deer
Diseases
Drought
Dry Soil
Erosion
Fire
Foot Traffic
Heat
Heavy Shade
Humidity
Insect Pests
Pollution
Poor Soil
Rabbits
Salt
Slugs
Squirrels
Storm damage
Urban Conditions
Voles
Wet Soil
Wind

Amianthium muscitoxicum: Landscape Location

Coastal
Container
Hanging Baskets
Houseplants
Lawn
Meadow
Naturalized Area
Near Septic
Patio
Pond
Pool/Hardscape
Recreational Play Area
Riparian
Rock Wall
Slope/Bank
Small Space
Vertical Spaces
Walkways
Woodland

Amianthium muscitoxicum: Attracts

Bats
Bees
Butterflies
Frogs
Hummingbirds
Moths
Pollinators
Predatory Insects
Reptiles
Small Mammals
Songbirds
Specialized Bees

Amianthium muscitoxicum: Problems

Allelopathic
Contact Dermatitis
Frequent Disease Problems
Frequent Insect Problems
Invasive Species
Malodorous
Messy
Poisonous to Humans
Problem for Cats
Problem for Children
Problem for Dogs
Problem for Horses
Short-lived
Spines/Thorns
Weak Wood
Weedy