prairie fleabane
Family
AsteraceaeScientific Name
Erigeron strigosus
Other Common Names:
rough fleebane
daisy fleabane
Habit
Rough fleabane is a summer annual that flowers from April to October. It is often found on roadsides and in old fields.
Leaves
Leaves are linear-lanceolate and pointed at the tip. The lower ones tend to be toothed, and the higher ones may be hairy. They are alternate in arrangement and are non-clasping.
Identifying Characteristics
Rough fleabane is identified by its flowers and linear leaves that are larger near the base. It is distinguished by being shorter in height and having fewer leaves than annual fleabane.
Flower Seed Head
Rough fleabane flowers from April to October. It has small flowers, under 1 inch in diameter. They are often referred to as daisy-like, due to their yellow center and white petals.
Seed Fruit
Rough fleabane has seeds that are called achenes. They are pale brown and shiny and about 1/20 of an inch in length. They are hairy and have white tufts.
Where Found
Rough fleabane is most often found in the Northwestern regions of North America, especially in the United States.
Growth Habit
upright and nonwoody
Thorns or Spines
not present
Approximate Flower Diameter
Varies:
pencil,
dime
Dominant Flower Color
Varies:
white,
yellow
Flower Symmetry
radial symmetery
Leaf Hairs
Varies:
has hairs,
no hairs
Leaf Shape
Varies:
lance,
oval
Leaf Arrangement
alternate
Leaf Margin
Varies:
entire,
serrated
Leaf Structure
simple
Leaf Stalk
Varies:
none,
shorter than leaf,
longer than leaf
Stem Hairs
has hairs
Stem Cross Section
round or oval
Milky Sap
not present
Root Structure
Varies:
fibrous,
taproot
Life Cycle
summer annual
Ochrea
not present
Plant Type
Herb