Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Silphium reniforme
FAMILY
Asteraceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Ragged Rosinweed at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Silphium compositum var. reniforme
FAMILY
Asteraceae
INCLUDED WITHIN Flora of North America
Silphium compositum
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-54-002b:
Silphium compositum var. reniforme FAMILY Asteraceae
SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Silphium reniforme
COMMON NAME:
Ragged Rosinweed, Kidneyleaf Rosinweed
To see larger pictures, click or hover over the thumbnails.
Will Stuart wil_5984487318_1bf6dc0684
July Burke County NC
Table Rock
These basal leaves are huge, unlobed, and more than 25cm across. — Will Stuart
Will Stuart wil_5984487650_b0764288c
July Burke County NC
Table Rock
Heads relatively small (disk 8-15 mm wide), with 6-12 ray flowers, per Weakley's Flora.
JK Marlow jkm151024_573
October Greenville County SC
Blue Wall Preserve
Leaves unlobed, coarsely dentate, often to 40cm wide, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
JK Marlow jkm151024_576
October Greenville County SC
Blue Wall Preserve
Bracts wide, usually squarrose, acute or obtuse, glabrous, ciliate or erose, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
COMPARE
involucral bracts of Silphium
JK Marlow jkm151024_578
October Greenville County SC
Blue Wall Preserve
Leaves usually as wide as long or wider, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
JK Marlow jkm151030_640b
October Greenville County SC
Blue Wall Preserve
Leaves usually pubescent, at least beneath, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Silphium reniforme
FAMILY
Asteraceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Silphium compositum var. reniforme
FAMILY
Asteraceae
INCLUDED WITHIN
Flora of North America
Silphium compositum
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-54-002b:
Silphium compositum var. reniforme
FAMILY
Asteraceae
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Silphium reniforme