Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Pterocaulon pycnostachyum
FAMILY
Asteraceae__
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Black Snakeroot at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Pterocaulon pycnostachyum
FAMILY
Asteraceae__
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Pterocaulon pycnostachyum
SYNONYMOUS WITH Flora of North America north of Mexico, vol. 19-20-21 (2006)
Pterocaulon pycnostachyum
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-41-001:
Pterocaulon pycnostachyum FAMILY Asteraceae__
SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Pterocaulon undulatum
COMMON NAME:
Black Snakeroot, Dense-spike Blackroot, Pineland Wingstem
To see larger pictures, click or hover over the thumbnails.
)
Keith Bradley kab_p_pycnostachyum_6460
January Miami-Dade County FL
)
Keith Bradley kab_p_pycnostachyum_6474
January Miami-Dade County FL
)
Alan S. Weakley asw_995514165189641
April FL
Apalachicola National Forest
The stems and leaf undersurfaces creamy-white floccose-tomentose, per Weakley's Flora (2022).
)
JK Marlow jkm0505s_08
May Williamsburg County SC
)
JK Marlow jkm0505s_09
May Williamsburg County SC
)
JK Marlow jkm090516_219
May Charleston County SC
Francis Marion National Forest
)
Richard and Teresa Ware rtw_p_pycnostachyum_2
July
Leaf bases decurrent down the stem, per Weakley's Flora (2022).
)
Richard and Teresa Ware rtw_p_pycnostachyum_5
July
Heads in oblong, terminal spikes, per Weakley's Flora (2022).
)
JK Marlow jkm081009_085
October Dorchester County SC
)
JK Marlow jkm081009_088
October Dorchester County SC
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Pterocaulon pycnostachyum
FAMILY
Asteraceae__
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Pterocaulon pycnostachyum
FAMILY
Asteraceae__
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Pterocaulon pycnostachyum
SYNONYMOUS WITH
Flora of North America north of Mexico, vol. 19-20-21
Pterocaulon pycnostachyum
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-41-001:
Pterocaulon pycnostachyum
FAMILY
Asteraceae__
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Pterocaulon undulatum
1957
Forb
Perennial
Habitat: Longleaf pine sandhills, pine flatwoods, per Weakley's Flora
Native to the Carolinas & Georgia
Common in Coastal Plain
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)
LEAVES:
Simple
FLOWER:
Spring/Summer
Discoid flowers very small
Rays: Absent
Inferior ovary
Bisexual
FRUIT:
Spring/Summer
Reddish-brown
Achene
TO LEARN MORE about this plant, look it up in a good book!
- Guide to the Wildflowers of SC, 1st ed. (Porcher & Rayner, 2001) p248
- Guide to the Wildflowers of SC, 2nd ed. (McMillan, Porcher, Rayner, & White; 2022) p349
- Wildflowers of the Atlantic Southeast (Cotterman, Waitt, & Weakley, 2019) p180
- Wildflowers of the Carolina Lowcountry (Porcher, 1995) p166
- Field Guide to the Wildflowers of Georgia (Chafin, 2016) p109
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