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NC Native Plant Society:
Plant Details

Eryngium yuccifolium

Rattlesnake-master, Button Eryngo

Scientific Name:

Eryngium yuccifolium

Genus:

Eryngium

Species Epithet:

yuccifolium

Common Name:

Rattlesnake-master, Button Eryngo

Plant Type

Herb/Wildflower

Life Cycle

Perennial

Plant Family

Apiaceae (Carrot Family)

Native/Alien:

NC Native

Invasive Status:

(*Key)

Size:

1-3 ft., 3-6 ft.

Bloom Color(s):

White, Green

Light:

Sun - 6 or more hours of sun per day

Soil Moisture:

Dry, Moist

Bloom Time:

June, July, August

Growing Area:

Mountains, Piedmont, Sandhills, Coastal Plain

Habitat Description:

Var. synchaetum (Southern Rattlesnake-master): Wet savannas, especially those over calcareous clay soils; rare in NC coastal plain. NC Status W2, NC Rank S2, Global Rank G5T5.
Var. yuccifolium (Northern Rattlesnake-master): Diabase barrens and glades, olivine barrens, pine savannas, pine flatwoods over loamy or clay soils, prairies, other open sites with at least periodic moisture, generally in sites showing some prairie affinities; uncommon throughout NC.  NC Rank S5, Global Rank G5T5.

Leaf Arrangement:

Alternate

Leaf Retention:

Deciduous

Leaf Type:

Leaves veined, not needle-like or scale-like

Leaf Form:

Simple

Life Cycle:

Perennial

Wildlife Value:

Has some wildlife value

Landscape Value:

Suitable for home landscapes

State Rank:

S2: Imperiled, S5: Secure (*Key)

Global Rank:

G_T_: Subspecies or Variety Rank (add status to NOTES section) (*Key)

State Status:

No NC Status Listed, W2: Watch List: Rare but Questionable Taxonomy (*Key)

Notes:

Unusual and attractive foliage and flowers.
Eryngium yuccifolium var. synchaetum is listed by the NC Natural Heritage Program as NC Status W2, NC Rank S2, Global Rank G5T5.

Emerging inflorescence. Notice the yucca-like leaves.

Garden in Orange County, NC

The Scientific Name is Eryngium yuccifolium. You will likely hear them called Rattlesnake-master, Button Eryngo. This picture shows the Emerging inflorescence. Notice the yucca-like leaves. of Eryngium yuccifolium

Bettina Darveaux

Close-up of umbel with flowers in bud

Garden in Orange County, NC

The Scientific Name is Eryngium yuccifolium. You will likely hear them called Rattlesnake-master, Button Eryngo. This picture shows the Close-up of umbel with flowers in bud of Eryngium yuccifolium

Bettina Darveaux

Flowering in June

Garden in Orange County, NC

The Scientific Name is Eryngium yuccifolium. You will likely hear them called Rattlesnake-master, Button Eryngo. This picture shows the Flowering in June of Eryngium yuccifolium

Bettina Darveaux

Close-up of umbel with open flowers

Garden in Orange County, NC

The Scientific Name is Eryngium yuccifolium. You will likely hear them called Rattlesnake-master, Button Eryngo. This picture shows the Close-up of umbel with open flowers of Eryngium yuccifolium

Bettina Darveaux

End of the season flowering stalk with dried umbels.

Orange Co., NC.,-cultivated

The Scientific Name is Eryngium yuccifolium. You will likely hear them called Rattlesnake-master, Button Eryngo. This picture shows the End of the season flowering stalk with dried umbels. of Eryngium yuccifolium

Bettina Darveaux

Close-up of seeds (schizocarps).

Orange Co., NC., -cultivated

The Scientific Name is Eryngium yuccifolium. You will likely hear them called Rattlesnake-master, Button Eryngo. This picture shows the Close-up of seeds (schizocarps). of Eryngium yuccifolium

Bettina Darveaux

Links:

USDA PLANTS Database Record

https://auth1.dpr.ncparks.gov/flora/species_account.php
 

https://plants.ces.ncsu.edu/plants/eryngium-yuccifolium/
 

https://nc.audubon.org/700
 

https://gobotany.nativeplanttrust.org/species/eryngium/yuccifolium/
 



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