Flower Color

• Red (or pink)
• Yellow-green
• Green
• Multi-colored

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

• Axillary cluster
• Axillary spikes
• Internodal cluster
• Catkin (ament, cone)

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

• 5 sepals
• 6 sepals

Sepal Separation

• United from 25% - 75% length

Sepal Tip

• Pointed
• Rounded

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

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

• Inferior (epigynous)

Fruit Length at Maturity

• 2.0 cm (.80 inch)
• 2.5 cm (1.0 inch)
• 3.0 cm (1.2 inches)
• 3.5 cm (1.4 inches)
• 4.0 cm (1.6 inches)

Fruit Width at Maturity

• 2.0 cm (.80 inch)
• 2.5 cm (1.0 inch)
• 3.0 cm (1.2 inches)
• 3.5 cm (1.4 inches)
• 4.0 cm (1.8 inches)
• more than 4.0 cm (> 1.8 inches)

Burs

• Fruit or seed NOT bur-like
• Fruit or seed bur-like

Fruit Type

• Nut

Leaf Arrangement

• Alternate

Leaf Type

• Simple (including lobed leaves)

Stipules

• Foliaceous < 2 mm (< .08 inch) long
• Lacking

Tendrils

• Tendrils absent

Venation

• Pinnate

Petiole (leaf stem) Blade Ratio

• Petiole < 25% total length

Leaf Length (blade PLUS petiole)

• 1 - 2 dm (4.0 - 8.0 inches)
• 2 - 4 dm (8.0 - 16.0 inches)

Leaf Width

• 4 - 10 cm (1.6 - 4.0 inches)
• 1 - 2 dm (4.0 - 8.0 inches)

Leaf Shape (simple leaves only)

• Lyrate
• Obovate
• Pinnately lobed

Leaf or Leaflet Margin

• Lobed
• Parted

Leaf or Leaflet Blade Base

• Acute (cuneate)
• Oblique

Leaf or Leaflet Tip

• Rounded (obtuse)

Leaf or Leaflet Blade Surface

• Glabrous (NO hairs)
• Lower leaf surface more hairy
• Pubescent
• Stellate (star shaped)

Succulence

• Not succulent

Milky Juice

• Juice NOT milky (watery)

Woodiness

• Woody

Spines or Thorns

• Spines or Thorns ABSENT

Aromatic (vegetative structures)

• Not aromatic

Life Cycle

• Perennial

Growth Habit (while flowering)

• Erect, spherical (bushy)

Plant Height at Maturity

• 2.5 - 5 meters (8.3 - 16.6 feet)
• more than 5.0 meters (16.6 33 feet)

Wind Dissemination

• Not wind disseminated

Moisture Regime

• Mesic

Chlorophyll

• Present

Stem Cross Section

• Round

Flowering Stem Leaves

• Stem uniformly leafy

Main Stem Branches

• Main stem branched

Root or Vegetative Propagule

• Tap Root

US State

• Alabama
• Arkansas
• Connecticut
• Delaware
• Illinois
• Kansas
• Kentucky
• Louisiana
• Massachusetts
• Maine
• Michigan
• Missouri
• Mississippi
• New Hampshire
• New Jersey
• New York
• Ohio
• Pennsylvania
• Tennessee
• Texas
• Virginia
• Wisconsin
• West Virginia
• Indiana
• Maryland
• Rhode Island
• Vermont
• Iowa
• Minnesota
• Montana
• North Dakota
• New Mexico
• Oklahoma
• South Dakota
• Wyoming
• Nebraska

Other

• District of Columbia

Canadian Province or Territory

• New Brunswick
• Ontario
• Quebec
• Alberta
• Manitoba
• Saskatchewan

• Weeds and Poisonous Plants of Wyoming and Utah 1987 (ISBN 0-941570-06-1) See page: 222
• Listed as a `Weed` by the Biota of North America Program, 2008 x