Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Helianthus pauciflorus ssp. pauciflorus
FAMILY
Asteraceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Helianthus pauciflorus ssp. pauciflorus
FAMILY
Asteraceae
SYNONYMOUS WITH Flora of North America north of Mexico, vol. 19-20-21 (2006)
Helianthus pauciflorus ssp. pauciflorus
INCLUDING Gray's Manual of Botany (Fernald, 1950)
Helianthus laetiflorus var. rigidus
INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Helianthus rigidus
COMMON NAME:
Stiff Sunflower
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_helar_001_lvd
)
Richard and Teresa Ware rtw_h_pauciflorus_4
August
Lvs usually lanceolate to lance-ovate or rhombic-ovate, petiole usually <1cm, per Weakley's Flora (2012).
)
Richard and Teresa Ware rtw_h_pauciflorus_7
August
A perennial sunflower with leafy stems and red disk flowers, per Weakley's Flora (2012).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Helianthus pauciflorus ssp. pauciflorus
FAMILY
Asteraceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Helianthus pauciflorus ssp. pauciflorus
FAMILY
Asteraceae
SYNONYMOUS WITH
Flora of North America north of Mexico, vol. 19-20-21
Helianthus pauciflorus ssp. pauciflorus
INCLUDING
Gray's Manual of Botany (Fernald, 1950)
Helianthus laetiflorus var. rigidus
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Helianthus rigidus
3639
Forb
Perennial
Habitat: Prairies, disturbed areas, per Weakley's Flora
Native: northwest of the Carolinas & Georgia
Waif(s)
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Simple
Basal & opposite, or upper alternate
FLOWER:
Summer/Fall
Rays: Yellow
Disc: Reddish
Inferior ovary
Disc flowers bisexual & fertile/ Ray flowers pistillate but sterile
FRUIT:
Summer/Fall
Brown
Achene
TO LEARN MORE about this plant, look it up in a good book!
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".