Flower Color

• White

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

• Axillary cluster
• Panicle

Number of Petals

• 4 petals

Petal Separation

• Completely free to base
• United from 25% - 75% length

Petal Tip

• Pointed

Flower Symmetry

• Flowers regular

Flower Length (Head length in the Asteraceae)

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

Flower Width (Head width in the Asteraceae)

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

Number of Sepals

• sepals lacking
• 4 sepals

Sepal Separation

• Completely free to base
• United from 25% - 75% 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

• Inferior (epigynous)

Fruit Type

• Schizocarp

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

• Whorled 5 - 8 per node

Leaf Type

• 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)

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

Leaf Width

• 1 - 5 mm (.04 - .20 inch)
• 5 - 10 mm (.20 - .40 inch)

Leaf Shape (simple leaves only)

• Linear or filiform
• Oblanceolate

Leaf or Leaflet Margin

• Entire
• Serrate

Leaf or Leaflet Blade Base

• Acute (cuneate)

Leaf or Leaflet Tip

• Acuminate (attenuate)
• Acute

Leaf or Leaflet Blade Surface

• Antrorsely pubescent
• Glabrous (NO hairs)
• Scabrous (like sand paper)

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

• Perennial

Growth Habit (while flowering)

• Spreading ascending
• Erect, spherical (bushy)

Plant Height at Maturity

• 2 - 4 dm (8.0 - 16.0 inches)
• 4 - 6 dm (1.3 - 2.0 feet)
• 6 - 8 dm (2.0 - 2.6 feet)
• 8 - 10 dm (2.6 - 3.3 feet)
• 1 - 1.5 meters (3.3 - 5.0 feet)

Wind Dissemination

• Not wind disseminated

Moisture Regime

• Mesic

Chlorophyll

• Present

Stem Cross Section

• Ridged
• Square

Flowering Stem Leaves

• Stem uniformly leafy

Main Stem Branches

• Main stem unbranched
• Main stem branched

Root or Vegetative Propagule

• Rhizomatous

US State

• Connecticut
• Delaware
• Georgia
• Illinois
• Kentucky
• Massachusetts
• Maine
• Michigan
• Mississippi
• North Carolina
• New Hampshire
• New Jersey
• New York
• Ohio
• Pennsylvania
• Tennessee
• Virginia
• Wisconsin
• West Virginia
• Indiana
• Maryland
• Rhode Island
• Vermont
• California
• Iowa
• Idaho
• Minnesota
• Montana
• Oregon
• Utah
• Washington
• Wyoming

Canadian Province or Territory

• British Columbia
• New Brunswick
• Nova Scotia
• Ontario
• Prince Edward Island
• Quebec
• Newfoundland

Other

• District of Columbia
• St. Pierre and Miquelon
• Labrador
• Greenland

• The Biology of Canadian Weeds: Canadian Journal of Plant Science Vol:83Pg.453
• Common Weeds of the United States, 1971 (ISBN 0-486-20504-5) See page: 354
• Ontario Weeds, 1992 Agdex 640, Publication #505 See page: 201
• Weeds, 1955 (1980) Walter Conrad Muenscher, ISBN# 0-8014-1266-8 See page: 412, 413
• Weeds of California and other Western States, 2007 (ISBN 13: 978-1-879906-69-3) See Page: 1441
• Weeds of the Midwestern United States & Central Canada, University of Georgia 2010, ISBN#0-8203-3506-1 See page: 281
• Weeds of the Northeast, 1956, Univ. of Delaware Field Manual #1 See species #: 62
• Weeds of the Northeast, 1997 Cornell University ISBN# 0-8014-8334-4 See page: 88,302
• Weeds of the Northern United States and Canada, 1964 Montgomery See page: 157
• Listed as a `Weed` by the Biota of North America Program, 2008 x
• Listed in the WSSA Composite List of Weeds X