rattlesnake master
ExplorePlants
rattlesnake master
Eryngium yuccifolium
Rattlesnake master is a unique plant with spiky, green leaves and round, blue flowers. It grows tall and is often found in prairies and open fields, making it a special sight in nature.
Habitat: Prairies and open fields
Appearance
The rattlesnake master has stiff, sword-like blue-green leaves resembling a yucca plant. Its unique, spherical flower heads are greenish-white, covered in small, spiky bracts, making it stand out in prairies and savannas. The overall appearance is architectural and tough.
KingdomPlantaePhylumTracheophytaClassMagnoliopsidaOrderApialesFamilyApiaceaeGenusEryngium
Category
PlantsRarity
Common
Danger
1/5 · Very low
Snaps
10
Interesting facts
Despite its fearsome name, this plant has no direct connection to rattlesnakes, only old folklore!
Its scientific name, Eryngium yuccifolium, means 'yucca-leaved thistle' even though it's not a true thistle!
Native Americans historically used its fibrous leaves to weave ropes and mats, showing great resourcefulness!
The plant's deep root system can extend over 15 feet underground, helping it find water in dry seasons!
Special abilities
Ability
Root Power
Rattlesnake master has incredibly tough, extensive roots that anchor it firmly, helping it withstand strong winds in open habitats.
Ability
Spiky Shield
Its stiff, pointy leaves act like a spiky shield, helping to deter hungry animals from nibbling on the plant.
Ability
Pollinator Magnet
The unique, globe-like, thistle-esque flower heads attract a wide variety of bees, wasps, and butterflies for pollination.
Measurements & details
- Height
- 50-200 cm
- Spread
- 30-60 cm
- Flower Size
- 1-2 cm
- Bloom Season
- Summer
- Edible
- No
- Toxicity
- None
- Lifecycle
- Perennial
- Pollination Method
- Insect
Ecological connections
pollinates
Monarch butterfly
Danaus plexippus
Monarch butterflies visit its flowers for nectar.
pollinates
Honey bee
Apis mellifera
Honey bees are frequent visitors to its nectar-rich blooms.
eaten by
White-tailed deer
Odocoileus virginianus
Deer occasionally browse its foliage, especially new growth.
pollinates
Scoliid wasp
Scolia dubia
These beneficial wasps gather nectar and pollen from the flowers.
Traits
Flowering
Flowering plants are any plants that produce flowers as part of their reproductive cycle.
Summer Blooming
Summer blooming plants produce their flowers during the summer season, often providing vibrant color when many other plants have finished.
Medicinal
Medicinal plants possess chemical compounds that can be used for therapeutic purposes to treat illnesses or maintain health.
Drought Tolerant
Drought-tolerant plants can survive and flourish in conditions with limited water availability.
Grassland
Grassland habitats are terrestrial biomes dominated by grasses and herbaceous plants, supporting a variety of grazing animals.
Pollinator Magnet
Describes plants that are particularly attractive and beneficial to a wide range of pollinating organisms.
Spiky/Thorny
Possessing sharp, pointed projections or spines on the body or surface.
Also known as
No aliases listed yet.
Collections
Safety
Danger
1/5 · Very low
Always look but don't touch the sharp leaves to stay safe.
Frequently Asked Questions
How to identify rattlesnake master?
The easiest way to identify rattlesnake master is to use the Snappit nature identifier app.
How tall is rattlesnake master?
50-200 cm
How wide does rattlesnake master spread?
30-60 cm
How big are the flowers on rattlesnake master?
1-2 cm
When does rattlesnake master bloom?
Summer
Is rattlesnake master edible?
No
Is rattlesnake master toxic?
None
What is rattlesnake master's lifecycle?
Perennial
Snap Map
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Recent Snaps
Jun 19, 2026
Shaw Nature Reservei
Photo attribution
(c) Laurie, some rights reserved (CC BY)
License: CC BY 4.0 ↗
Image may be shown cropped inside the card frame.
Where to spot
Park39 sightings50 species
Illinois, US
Gensburg-Markham Prairie
You might spot Viceroy, Common Wood-Nymph, and Acadian Hairstreak.
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Park44 sightings50 species
Georgia, US
Hartwell Commercial Historic District
You might spot Joro Spider, American Sweetgum, and American Tuliptree.
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Park36 sightings50 species
Missouri, US
Shaw Nature Reserve
You might spot Painted-Cup Paintbrush and Great Spangled Fritillary.
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Park25 sightings12 species
Wisconsin, US
Black Earth Rettenmund Prairie State Natural Area
You might spot Green Comet Milkweed, Wood Lily, and Flowering Spurge.
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Park30 sightings12 species
Ohio, US
Center Street Historic District
You might spot Eastern Gray Squirrel and Common Jewelweed.
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Park28 sightings12 species
Illinois, US
Haight Village Historic District
You might spot Common Eastern Bumble Bee and Brown-Belted Bumble Bee.
View guide →
