Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Helianthus maximilianii
FAMILY
Asteraceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Maximilian Sunflower at Vascular Plants of North Carolina.
SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT)
PLANTS NATIONAL DATABASE:
Helianthus maximiliani
FAMILY
Asteraceae
SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) Flora of North America north of Mexico, vol. 19-20-21 (2006)
Helianthus maximiliani
SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-65-014:
Helianthus maximiliani FAMILY Asteraceae
SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT) Manual of the Southeastern Flora (Small, 1933, 1938)
Helianthus maximiliani
COMMON NAME:
Maximilian Sunflower
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_hema2_001_lvd
)
Richard and Teresa Ware rtw_h_maximilianii
August
The 10-25 ray flowers each 1.0-1.6" long. The disc yellow, 0.6-1.0" wide, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).
)
Richard and Teresa Ware rtw_h_maximilianii_2
August
Perennial 2-10' tall. The inflorescence tends to be long, with several heads, per Wildflowers of Tennessee (Carman, 2005).
)
Richard and Teresa Ware rtw_h_maximilianii_3
August
)
Richard and Teresa Ware rtw_h_maximilianii_3b
August
Leaves conduplicate & entire, usually with only a single prominent main vein, per Weakley's Flora (2012).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Helianthus maximilianii
FAMILY
Asteraceae
SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT)
PLANTS NATIONAL DATABASE:
Helianthus maximiliani
FAMILY
Asteraceae
SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT)
Flora of North America north of Mexico, vol. 19-20-21
Helianthus maximiliani
SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT)
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-65-014:
Helianthus maximiliani
FAMILY
Asteraceae
SYNONYMOUS WITH (ORTHOGRAPHIC VARIANT)
Manual of the Southeastern Flora (Small, 1933, 1938)
Helianthus maximiliani
3638
Forb
Perennial
Habitat: Moist roadsides and disturbed areas, per Weakley's Flora
Native: west of the Carolinas & Georgia
Uncommon (rare in Coastal Plain) (rare in GA Piedmont)
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Simple
Alternate, or the lowermost opposite
FLOWER:
Summer/Fall
Rays: Yellow
Disc: Yellow
Inferior ovary
Disc flowers bisexual & fertile/ Ray flowers pistillate but sterile
FRUIT:
Summer/Fall
Brown to black
Achene
TO LEARN MORE about this plant, look it up in a good book!
- Wildflowers of Tennessee (Carman, 2005) p303
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p352
If a search such as "Carex leptalea var. leptalea" doesn't deliver the results you want, try "Carex leptalea".
Or, to minimize chances of a misspelling, try just "Carex le".
Less is more: If "pencil flower" doesn't deliver the results you want, try "pencil".