Flower Color

• Yellow
• Blue-purple
• Purple
• White
• Multi-colored

Inflorescence Type (How the flowers are arranged on the plant)

• Solitary, axillary

Number of Petals

• 4 petals

Petal Separation

• United from 25% - 75% length
• United > 75% of length

Petal Tip

• Rounded

Flower Symmetry

• Flowers strongly irregular

Flower Length (Head length in the Asteraceae)

• 5 mm (.20 inch)
• 6 mm (.24 inch)
• 7 mm (.28 inch)
• 8 mm (.32 inch)
• 9 mm (.36 inch)

Flower Width (Head width in the Asteraceae)

• 6 mm (.24 inch)
• 7 mm (.28 inch)
• 8 mm (.32 inch)
• 9 mm (.36 inch)
• 1.0 cm (.40 inch)

Number of Sepals

• 5 sepals

Sepal Separation

• United at base < 25% length

Sepal Tip

• Pointed

Flower Sex

• Bisexual (perfect)

Number of Styles

• 1 style

Number of Stamens

• 4 stamens

Stamens Attached to the Petals

• Stamens attached to the petals

Stamens Connate (united)

• Filaments or anthers NOT united

Carpel Separation

• Carpels united (or one)

Number of Carpels

• 2 carpels

Ovary Position

• Superior (hypogynous)

Fruit Type

• Capsule, 2-celled

Fruit Length at Maturity

• 2 mm (.08 inch)
• 3 mm (.12 inch)
• 4 mm (.16 inch)

Fruit Width at Maturity

• 2 mm (.08 inch)
• 3 mm (.12 inch)
• 4 mm (.16 inch)

Burs

• Fruit or seed NOT bur-like

Leaf Arrangement

• Alternate

Leaf Type

• Simple (including lobed leaves)

Stipules

• Lacking

Tendrils

• Tendrils absent

Venation

• Palmate

Petiole (leaf stem) Blade Ratio

• Petiole 25% - 75% total length

Leaf Length (blade PLUS petiole)

• 1 - 2 cm (.40 - .80 inch)
• 2 - 4 cm (.80 - 1.60 inches)
• 4 - 10 cm (1.60 - 4.0 inches)

Leaf Width

• 1 - 2 cm (.40 - .80 inch)
• 2 - 4 cm (.80 - 1.6 inches)

Leaf Shape (simple leaves only)

• Orbicular (round)
• Palmately 4 - 5 lobed
• Palmately > 5 lobed
• Reniform (kidney)

Leaf or Leaflet Margin

• Lobed

Leaf or Leaflet Blade Base

• Cordate

Leaf or Leaflet Tip

• Acute
• Rounded (obtuse)

Leaf or Leaflet Blade Surface

• Glabrous (NO hairs)

Succulence

• Not succulent

Milky Juice

• Juice NOT milky (watery)

Woodiness

• Herbaceous

Spines or Thorns

• Spines or Thorns ABSENT

Aromatic (vegetative structures)

• Not aromatic

Life Cycle

• Annual

Growth Habit (while flowering)

• Prostrate
• Climbing vine

Plant Height at Maturity

• 1 - 5 cm (.40 - 2.0 inches)
• 5 - 10 cm (2.0 - 4.0 inches)

Wind Dissemination

• Not wind disseminated

Moisture Regime

• Seasonally saturated
• Mesic

Chlorophyll

• Present

Stem Cross Section

• Round

Flowering Stem Leaves

• Stem uniformly leafy

Main Stem Branches

• Main stem branched

Root or Vegetative Propagule

• Fibrous

US State

• Arkansas
• Connecticut
• Delaware
• Illinois
• Kentucky
• Massachusetts
• Michigan
• Missouri
• North Carolina
• New Jersey
• New York
• Ohio
• Pennsylvania
• South Carolina
• Tennessee
• Virginia
• Wisconsin
• West Virginia
• Hawaii
• Indiana
• Maryland
• Rhode Island
• Vermont
• California
• Colorado
• Oregon
• South Dakota
• Utah
• Washington
• Nebraska

Canadian Province or Territory

• British Columbia
• New Brunswick
• Nova Scotia
• Ontario
• Quebec
• Manitoba

• How to Know the Weeds, 1972, (ISBN# 0-697-04880-2) See page: 141
• Weeds, 1955 (1980) Walter Conrad Muenscher, ISBN# 0-8014-1266-8 See page: 391, 392
• Listed as a `Weed` by the Biota of North America Program, 2008 X
• Listed in the WSSA Composite List of Weeds X