Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Apiales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Eryngium yuccifolium var. yuccifolium
FAMILY
Apiaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Rattlesnake-master at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Eryngium yuccifolium var. yuccifolium
FAMILY
Apiaceae
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 140-04-003a:
Eryngium yuccifolium var. yuccifolium FAMILY Apiaceae
SYNONYMOUS WITH (MISAPPLIED) Manual of the Southeastern Flora (Small, 1933, 1938)
Eryngium aquaticum
COMMON NAME:
Northern Rattlesnake-master, Button Snakeroot
To see larger pictures, click or hover over the thumbnails.
)
JK Marlow jkm190414_7423
April Oconee County SC
)
Alan S. Weakley asw_622591142844468
May Granville County NC
)
JK Marlow jkm0505s_10
May Williamsburg County SC
Stiff, swordlike, spiny-margined, parallel-veined basal leaves, per Wildflowers of the Southern Mountains (Smith, 1998).
)
JK Marlow jkm0505s_11
May Williamsburg County SC
An anomaly in having elongate & parallel-veined leaves, like the monocots, per Wildflowers of the Southern Mountains (Smith, 1998).
)
JK Marlow jkm070505_011
May Mecklenburg County NC
Charlotte Mecklenburg McDowell Piedmont Prairie Restoration
)
JK Marlow jkm220527_8156
May Oconee County SC
)
Alan S. Weakley asw_10216397275900539
June
)
JK Marlow jkm0506j_11
June Oconee County SC
Bractlets ovate or broadly lanceolate, prominent, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow jkm140614_955
June Oconee County SC
)
JK Marlow jkm0307j_13
July Buncombe County NC
NC Arboretum
Newly-opened flowers shed pollen, later stigmas spread and become receptive, per Wildflowers & Plant Communities of the Southern Appalachian Mountains and Piedmont (Spira, 2011).
)
JK Marlow jkm0507l_21
July Oconee County SC
Tiny flowers in spherical heads almost 1" across, in wide-branching umbels, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).
)
JK Marlow jkm150712_485
July Pickens County SC
Table Rock State Park
)
JK Marlow jkm150712_488
July Pickens County SC
Table Rock State Park
)
JK Marlow jkm150712_489
July Pickens County SC
Table Rock State Park
)
JK Marlow jkm220702_8874
July Oconee County SC
)
JK Marlow jkm210806_2433
August Spartanburg County SC
)
Richard and Teresa Ware rtw_eryngium_yuccifolium
August
)
Sam Pratt sbp_3395
September Spartanburg County SC
In cultivation
Larger leaves > 1.5 cm wide; marginal bristles of leaves solitary, per Weakley's Flora (2023).
)
Sam Pratt sbp_3398
September Spartanburg County SC
In cultivation
)
Patrick D. McMillan pdmeyuccifolium_scotts
Month Unknown Williamsburg County SC
Bracts & bractlets lanceolate, sharp, not extending beyond flower heads, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Eryngium yuccifolium var. yuccifolium
FAMILY
Apiaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Eryngium yuccifolium var. yuccifolium
FAMILY
Apiaceae
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 140-04-003a:
Eryngium yuccifolium var. yuccifolium
FAMILY
Apiaceae
SYNONYMOUS WITH (MISAPPLIED)
Manual of the Southeastern Flora (Small, 1933, 1938)
Eryngium aquaticum
1871
Forb
Perennial
Habitat: diabase barrens and glades, olivine barrens, pine savannas, pine flatwoods over loamy or clay soils, wet to dry prairies, other open sites with at least periodic moisture, generally in sites showing some prairie affinities, per Weakley's Flora
Native to the Carolinas & Georgia
Uncommon
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
IS THE PLANT "ARMED"?
Leaf margins weakly spinose
LEAVES:
Simple
Alternate
FLOWER:
Summer
White/ Greenish
5-merous
Inferior ovary
Flowers in compact heads
FRUIT:
Summer
Schizocarp of two mericarps
TO LEARN MORE about this plant, look it up in a good book!
- All About South Carolina Wildflowers (Midgley, 1999) p149
- Gardening with the Native Plants of Tennessee (Hunter, 2002) p127
- Guide to the Wildflowers of SC, 2nd ed. (McMillan, Porcher, Rayner, & White; 2022) p265
- Newcomb's Wildflower Guide (Newcomb, 1977) p418
- Wildflowers of the Atlantic Southeast (Cotterman, Waitt, & Weakley, 2019) p182
- Wildflowers of the Carolina Lowcountry (Porcher, 1995) p168
- Wildflowers of the Eastern United States (Duncan & Duncan, 1999) p059
- Wild Flowers of NC, 2nd edition (Justice, Bell, & Lindsey, 2005) p165
- Field Guide to the Wildflowers of Georgia (Chafin, 2016) p034
- Wildflowers of Tennessee (Carman, 2005) p178
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p214
- Wildflowers & Plant Communities of the Southern Appalachian Mountains and Piedmont (Spira, 2011) p370
- Wildflowers of the Southern Mountains (Smith, 1998) p112
- Wildflowers of the Sandhills Region (Sorrie, 2011) p052
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