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Your search found 299 taxa.
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933)
Acanthoxanthium spinosum
INCLUDED WITHIN
Flora of Virginia (Weakley, Ludwig & Townsend, 2012)
Xanthium strumarium
INCLUDED WITHIN
Flora of Virginia (Weakley, Ludwig & Townsend, 2012)
Xanthium strumarium
Female flowers enclosed by the involucre, forming a bur w hooked bristles, per Wildflowers of the Eastern United States.
10-15 showy ray flowers, 0.2-0.4" long, surround 0.25" disk, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.
SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT)
Synthesis of the North American Flora (Kartesz, 1999)
Packera millefolia
Ray florets 8-10(-13); disc florets 35-50 or more, per Flora of North America.
SYNONYMOUS WITH
Vascular Flora of the Southeastern States (Cronquist 1980, Isely 1990)
Senecio anonymus
8-15 ray flowers, 0.2-0.3" long, surround a disk 0.2-0.3" wide, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.
Ray florets 10 or 13; disc florets 50-60 or more, per Flora of North America.
Heads few, generally 5-20, per Weakley's Flora.
INCLUDED WITHIN
Flora of North America
Packera paupercula
SYNONYMOUS WITH
Gray's Manual of Botany (Fernald, 1950)
Senecio crawfordii
INCLUDED WITHIN (MISAPPLIED TO OUR MATERIAL)
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Senecio plattensis
INCLUDED WITHIN (MISAPPLIED TO OUR MATERIAL) (?)
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Senecio plattensis
INCLUDED WITHIN (MISAPPLIED) (?)
Packera paupercula var. appalachiana
Ray florets 9-11, lemon yellow. Disc florets 18-20, lemon yellow, per Packera serpenticola, a New Species from North Carolina (Boufford et al., 2014).
SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT)
Segregates of Senecio & Cacalia in the flora of North America... (Barkley, 1999)
Packera schweinitzianus
SYNONYMOUS WITH
Vascular Flora of the Southeastern States (Cronquist 1980, Isely 1990)
Senecio schweinitzianus
Heads 8-20+ in loose, corymbiform arrays, per Flora of North America.
10-12 ray flowers, 0.25-0.5" long. Disk 0.2-0.5" wide, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.
8-10 irregularly spaced ray flowers. Disk yellow, 0.3-.6" across, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.
SYNONYMOUS WITH
Jacobaea vulgaris
A branched inflorescence has up to about 30 flower heads, each w 10-15 rays, per Atlantic Coastal Plain Wildflowers.
Flower heads grow singly, nodding at first, eventually erect, per Wildflowers of the Sandhills Region.
Ray flowers 5-lobed, 2.5-3.5cm long, lobes 5-12mm long, per Vascular Flora of the Carolinas.
SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT)
Vascular flora of Illinois (Mohlenbrock, 2014)
Centaurea monctonii
(?)
Flora of Virginia (Weakley, Ludwig & Townsend, 2012)
Centaurea debeauxii ssp. thuillieri
INCLUDING
PLANTS National Database
Centaurea transalpina
Outer flowers of the heads larger than others, per Wildflowers in the Field and Forest.
Usually 2-5 flower heads with 50-100 ray flowers terminating a hairy stem, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.
Heads 0.5-1.0" across, numerous, each w usually more than 150 ray flowers, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.
Similar to E. philadelphicus, but usualy shorter. Rays 100-150, only 3-5mm, per Wildflowers of the Eastern United States.
Flower heads 1/2 to 3/4" wide with 50 or many more white rays, per Wildflowers of the Southern Mountains.
INCLUDING
PLANTS National Database
Erigeron strigosus var. beyrichii
Flower heads several to many, each 1/2" wide or less, with 50-100 rays, per Wildflowers in the Field and Forest.
Flower heads with 20-30 white (rarely lavender) ray flowers, per Vascular Flora of the Carolinas.
INCLUDING
Manual of the Southeastern Flora (Small, 1933)
Leptilon bonariense
INCLUDING
Manual of the Southeastern Flora (Small, 1933)
Leptilon linifolium
SYNONYMOUS WITH
Gray's Manual of Botany (Fernald, 1950)
Erigeron canadensis
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933)
Leptilon canadense
The involucre is 1/8" high, and the whitish rays are narrow, short and erect, per Wildflowers of the Southern Mountains.
SYNONYMOUS WITH
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Conyza canadensis var. pusilla
SYNONYMOUS WITH
Gray's Manual of Botany (Fernald, 1950)
Erigeron pusillus
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933)
Leptilon pusillum
The involucre is 1/8" high, and the whitish rays are narrow, short and erect, per Wildflowers of the Southern Mountains.
Ray florets 25-36, corollas white to lilac, laminae 3-7.5mm, per Flora of North America.
Ray florets 20-40, corollas white to lilac, laminae 3-6.3mm, per Flora of North America.
Ray florets 20-60; corollas white to lilac, laminae 5-13mm, per Flora of North America.
SYNONYMOUS WITH
Manual of Vascular Plants of NE US & Adjacent Canada (Gleason & Cronquist,1991)
Astranthium integrifolium var. integrifolium
Flower heads from 0.7-1.4" wide, with 8-30 white rays tinged with lavender, per Wildflowers of Tennessee.
The so-called White-topped Asters have about 5 rays and creamy-white disks, per Wildflowers of the Southern Mountains.
Ray flowers white to pink, 3-6, narrow, 0.2-0.4" long; disk flowers cream, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933)
Sericocarpus bifoliatus
Bracts at base of flowerheads distinctly green-tipped; 2-5 white ray flowers, per Wildflowers of the Sandhills Region.
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933)
Aster mirabilis
Rays 12-20, bluish-lavender to white, 1.5-2cm long; disc flowers yellow, per Vascular Flora of the Carolinas.
Rays 12-20, white to lavender, 1.5-2cm long; disc flowers yellow to red, per Vascular Flora of the Carolinas.
The inflorescence is corymbiform; flowers have 5-10 white rays, per Wildflowers of the Southern Mountains.
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933)
Aster chlorolepis
Rays white, usually 10 or more, 1.5-2cm long, disc flowers yellow or red, per Vascular Flora of the Carolinas.
INCLUDED WITHIN
Flora of North America
Symphyotrichum cordifolium
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933)
Aster cordifolius
Ray florets (8)10-16(20). Disc florets cream or light yellow becoming purple, per Flora of North America.
INCLUDED WITHIN
Flora of North America
Symphyotrichum cordifolium
SYNONYMOUS WITH
Vascular Flora of the Southeastern States (Cronquist 1980, Isely 1990)
Aster lowrieanus
Flower heads in ~ densely paniculiform arrays, per Flora of North America.
(?)
Review of the taxonomy of Aster... emphasizing New World species (Nesom, 1994)
Symphyotrichum sagittifolium
Loose panicles of blue to violet flowers, rays 12-20. Ron Lance
INCLUDING
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Aster patens var. patens
The 1" heads have ~ 20 blue or violet rays & yellow or reddish disk flowers, per Wildflowers of the Southern Mountains.
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933)
Aster georgianus
Disc florets white w purplish lobes. Anthers purplish, pollen white, per Weakley's Flora.
SYNONYMOUS WITH
Vascular Flora of the Southeastern States (Cronquist 1980, Isely 1990)
Aster patens var. phlogifolius
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933)
Aster phlogifolius
Flower heads in an open corymb, with ~ 15 white rays & a yellow or red disk, per Wildflowers of the Southern Mountains.
Flowers in a corymbiform cluster, each with 15-30 violet rays, per Wildflowers of the Southern Mountains.
Ray flowers 15-35, per Weakley's Flora.
Ray florets (5)8-14; corollas blue-violet to rose-purple or bluish, often pale, per Flora of North America.
Rays 14-30, blue to violet, 1.5-2cm long, per Vascular Flora of the Carolinas.
Well over 50 ray flowers in each 1-2" head; their color is intense, per Wildflowers of the Southern Mountains.
A many-headed panicle with numerous small bracteal leaves. Heads w 20-30 rays, per Vascular Flora of the Carolinas.
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933)
Aster walteri
Rays 11-26, corollas bluish-purple. Corollas of disc florets yellow, per Flora of North America.
Numerous light blue or lavender rays; disk flowers pale yellow or red, per Wildflowers of the Southern Mountains.
SYNONYMOUS WITH
Aster puniceus var. elliottii
Similar to S. puniceum but that has auriculate leaf bases, per Guide to the Wildflowers of SC.