Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA (4/24/22):
Lactuca biennis
FAMILY
Asteraceae_
NEW! Click to go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Tall Blue Lettuce at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Lactuca biennis
FAMILY
Asteraceae_
SYNONYMOUS WITH
Flora of North America
Lactuca biennis
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-07-006:
Lactuca biennis
FAMILY
Asteraceae_
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Mulgedium spicatum var. integrifolium
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Mulgedium spicatum var. spicatum
COMMON NAME:
Tall Blue Lettuce, Blue Wood Lettuce
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_lasp4_001_lvd
)
Bruce A. Sorrie bas_lactuca_biennis1
August Moore County NC
Flowers typically blue, but yellow in one form. Panicle branches short, per Wildflowers of the Southern Mountains.
WEAKLEY'S FLORA (4/24/22):
Lactuca biennis
FAMILY
Asteraceae_
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Lactuca biennis
FAMILY
Asteraceae_
SYNONYMOUS WITH
Flora of North America
Lactuca biennis
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-07-006:
Lactuca biennis
FAMILY
Asteraceae_
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Mulgedium spicatum var. integrifolium
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Mulgedium spicatum var. spicatum
1892
Forb
Biennial
Native to the Carolinas & Georgia
Common in NC (rare elsewhere in GA & SC)
Habitat: Pastures, roadsides, forest edges, thickets, per Weakley's Flora
NEW! Click here to see a map from Weakley's Flora of the Southeastern US showing range and abundance.
Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)
DOES THE PLANT HAVE "MILKY SAP"?
Has milky sap (latex)
LEAVES:
Simple
Alternate
FLOWER:
Summer/Fall
Rays: Blue or yellow
Disc: Absent
Ray flowers bisexual
Inferior ovary
FRUIT:
Summer/Fall
Brown
Achene
TO LEARN MORE about this plant, look it up in a good book!
- Newcomb's Wildflower Guide p384
- Wildflowers of the Atlantic Southeast p441
- Wildflowers of the Southern Mountains p174