Flower Color

• Green
• White

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

• Axillary cluster
• Solitary, axillary

Number of Petals

• 0 (no petals)

Flower Symmetry

• Flowers regular

Flower Length (Head length in the Asteraceae)

• 1 mm (.04 inch)
• 2 mm (.08 inch)
• 3 mm (.12 inch)

Flower Width (Head width in the Asteraceae)

• 1 mm (.04 inch)
• 2 mm (.08 inch)
• 3 mm (.12 inch)

Number of Sepals

• sepals lacking

Flower Sex

• Unisexual (monoecious or dioecious)

Number of Styles

• Styles lacking (male flowers only)
• 3 styles

Number of Stamens

• stamens lacking (female flowers only)
• 5 stamens
• 6 stamens
• 7 stamens
• 8 stamens
• 9 stamens
• 10 stamens
• more than 10 stamens

Stamens Attached to the Petals

• Stamens NOT attached to the petals

Stamens Connate (united)

• Filaments or anthers NOT united

Carpel Separation

• Carpels united (or one)

Number of Carpels

• 0 (male flowers only or plants producing spores)
• 3 carpels

Ovary Position

• Superior (hypogynous)

Fruit Type

• Capsule, 3-celled

Fruit Length at Maturity

• 2 mm (.08 inch)
• 3 mm (.12 inch)

Fruit Width at Maturity

• 2 mm (.08 inch)
• 3 mm (.12 inch)

Burs

• Fruit or seed NOT bur-like

Leaf Arrangement

• Alternate
• Opposite

Leaf Type

• Compound even pinnate < 9 leaflets
• Compound even pinnate > 9 leaflets
• Simple (including lobed leaves)

Stipules

• Lacking

Tendrils

• Tendrils absent

Venation

• Pinnate

Petiole (leaf stem) Blade Ratio

• Petiole absent (leaf sessile)

Leaf Length (blade PLUS petiole)

• 5 - 10 mm (.20 - .40 inch)
• 1 - 2 cm (.40 - .80 inch)
• 2 - 4 cm (.80 - 1.60 inches)
• 4 - 10 cm (1.60 - 4.0 inches)
• 1 - 2 dm (4.0 - 8.0 inches)

Leaf Width

• 1 - 5 mm (.04 - .20 inch)
• 5 - 10 mm (.20 - .40 inch)
• 1 - 2 cm (.40 - .80 inch)
• 2 - 4 cm (.80 - 1.6 inches)
• 4 - 10 cm (1.6 - 4.0 inches)

Leaf Shape (simple leaves only)

• Obovate

Succulence

• Succulent
• Not succulent

Leaf or Leaflet Margin

• Entire

Leaf or Leaflet Blade Base

• Oblique
• Rounded
• Truncate

Leaf or Leaflet Tip

• Rounded (obtuse)
• Truncate

Leaf or Leaflet Blade Surface

• Glabrous (NO hairs)

Milky Juice

• Juice milky

Woodiness

• Herbaceous

Spines or Thorns

• Spines or Thorns ABSENT

Aromatic (vegetative structures)

• Not aromatic

Life Cycle

• Annual

Growth Habit (while flowering)

• Spreading ascending
• Erect, columnar (narrow)
• Erect, spherical (bushy)

Plant Height at Maturity

• 5 - 10 cm (2.0 - 4.0 inches)
• 1 - 2 dm (4.0 - 8.0 inches)
• 2 - 4 dm (8.0 - 16.0 inches)
• 4 - 6 dm (1.3 - 2.0 feet)

Wind Dissemination

• Not wind disseminated

Moisture Regime

• Seasonally saturated
• Mesic

Chlorophyll

• Present

Stem Cross Section

• Ridged
• Round

Flowering Stem Leaves

• Stem uniformly leafy

Main Stem Branches

• Main stem unbranched
• Main stem branched

Root or Vegetative Propagule

• Tap Root

US State

• Alabama
• Arkansas
• Florida
• Georgia
• Illinois
• Kansas
• Louisiana
• Mississippi
• North Carolina
• South Carolina
• Tennessee
• Texas
• Virginia

Other

• Puerto Rico

• S.W.S.S. Weed ID Guide, 1993 Section Number and Five letter code: 7 PYLUR
• Weeds of Southern Turfgrasses, 1992 Univ. of Florida, Gainesville Publication # SP-79, See page: 127
• Weeds of the South, University of Georgia 2009, ISBN#0-8203-3046-9 See page: 196
• Listed as a `Weed` by the Biota of North America Program, 2008 x