Check out EDDMapS.org to see where this has been reported.
Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA (11/30/12):
Centaurea stoebe ssp. micranthos
FAMILY
Asteraceae__
(?)
PLANTS NATIONAL DATABASE:
Centaurea stoebe ssp. micranthos
FAMILY
Asteraceae__
SYNONYMOUS WITH (MISAPPLIED)
VASCULAR FLORA OF THE CAROLINAS (1968) 179-24-003:
Centaurea maculosa
FAMILY
Asteraceae__
SYNONYMOUS WITH
Synthesis of the North American Flora (Kartesz, 1999)
Centaurea biebersteinii
COMMON NAME:
Spotted Knapweed, Bushy Knapweed
Click or hover over the thumbnails to see larger pictures.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_cema4_001_lvd
)
JK Marlow jkm140623_191b
June Greenville County SC
Swamp Rabbit Trail
Outer involucral bracts w pectinate (comb-like), scarious, blackish apices, per Vascular Flora of the Carolinas.
COMPARE
involucral bracts of Centaurea
)
JK Marlow jkm140623_199
June Greenville County SC
Swamp Rabbit Trail
)
JK Marlow jkm100702_004
July Greenville County SC
Swamp Rabbit Trail
Heads are discoid, but the large outer florets simulate ray flowers, per Wildflowers of the Southern Mountains.
)
JK Marlow jkm100702_007
July Greenville County SC
Swamp Rabbit Trail
)
JK Marlow jkm100702_008
July Greenville County SC
Swamp Rabbit Trail
Involucres urn-shaped, ~ 0.5" high, bracts tipped with a blackish fringe, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.
)
JK Marlow jkm100702_009
July Greenville County SC
Swamp Rabbit Trail
Leaves pinnatifid with linear segments, downy-hairy, minutely roughened, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.
)
JK Marlow jkm100702_011
July Greenville County SC
Swamp Rabbit Trail
Perennial 40-100cm tall, spreading-ascending, cespitose (tufted in clumps), per Vascular Flora of the Carolinas.
)
JK Marlow jkm100702_018
July Greenville County SC
Swamp Rabbit Trail
Central flowers narrow, bisexual; marginal flowers enlarged, sterile, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.
)
JK Marlow jkm100702_050
July Greenville County SC
Swamp Rabbit Trail
)
JK Marlow jkm100702_052
July Greenville County SC
Swamp Rabbit Trail
)
JK Marlow jkm100702_064
July Greenville County SC
Swamp Rabbit Trail
The first year it has a basal rosette of deeply lobed leaves about 8" long, per Invasive Plants, Guide to Identification, Impacts and Control.
)
JK Marlow jkm130823_476
August Greenville County SC
Swamp Rabbit Trail
Stems floccose [bearing tufts of long soft tangled hairs], per Vascular Flora of the Carolinas.
)
JK Marlow jkm140831_142
August Greenville County SC
Swamp Rabbit Trail
)
Keith Bradley kab_c_stoebe_micran_78803
August Hamilton County NY
)
JK Marlow jkm121013_515516
October Greenville County SC
Swamp Rabbit Trail
)
Cindy Roche, Bugwood.org bug_1350048
Month Unknown
)
Ken Chamberlain, The Ohio State University, Bugwood.org bug_1553216
Month Unknown
)
John Cardina, The Ohio State University, Bugwood.org bug_1557011
Month Unknown
)
Montana Statewide Noxious Weed Awareness and Education Program Archive, Montana bug_2153083
Month Unknown
)
Leslie J. Mehrhoff, University of Connecticut, Bugwood.org bug_5271008
Month Unknown
)
Joseph M. DiTomaso, University of California - Davis, Bugwood.org bug_5374337
Month Unknown