Weed Information: Erodium moschatum (filaree, whitestem)
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Erodium moschatum (filaree, whitestem)

Family: Geraniaceae

Description

The leaves divided into entire leaflets with a toothed or shallowly lobed margin. This characteristic distinguishes the species from Erodium cicutarium and Erodium botrys.

Characteristics

Flower Color
  • Red (or pink)
  • Purple
  • Red-purple
Inflorescence Type (How the flowers are arranged on the plant)
  • Axillary umbel
  • Simple umbel
Number of Petals
  • 5 petals
Petal Separation
  • Completely free to base
Petal Tip
  • Rounded
Flower Symmetry
  • Flowers regular
Flower Length (Head length in the Asteraceae)
  • 7 mm (.28 inch)
  • 8 mm (.32 inch)
  • 9 mm (.36 inch)
  • 1.0 cm (.40 inch)
Flower Width (Head width in the Asteraceae)
  • 8 mm (.32 inch)
  • 9 mm (.36 inch)
  • 1.0 cm (.40 inch)
  • 1.5 cm (.60 inch)
Number of Sepals
  • 5 sepals
Sepal Separation
  • Completely free to base
Sepal Tip
  • Pointed
Flower Sex
  • Bisexual (perfect)
Number of Styles
  • 5 styles
Number of Stamens
  • 5 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
  • 5 carpels
Ovary Position
  • Superior (hypogynous)
Fruit Type
  • Schizocarp
Fruit Length at Maturity
  • 2.5 cm (1.0 inch)
  • 3.0 cm (1.2 inches)
  • 3.5 cm (1.4 inches)
  • 4.0 cm (1.6 inches)
  • 4.5 cm (1.8 inches)
  • 5.0 cm (2.0 inches)
Fruit Width at Maturity
  • 1 mm (.04 inch) or less
  • 2 mm (.08 inch)
Burs
  • Fruit or seed NOT bur-like
  • Fruit or seed bur-like

Leaf Arrangement
  • Opposite
Leaf Type
  • Compound odd pinnate > 8 leaflets
  • Pinnately dissected
Stipules
  • Foliaceous 2-4 mm (.08 - .16 in) long
  • Foliaceous 4-10 mm (.16 - .40 in) long
Tendrils
  • Tendrils absent
Venation
  • Pinnate
Petiole (leaf stem) Blade Ratio
  • Petiole < 25% total length
  • Petiole 25% - 75% 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
  • 2 - 4 cm (.80 - 1.6 inches)
  • 4 - 10 cm (1.6 - 4.0 inches)
Leaf or Leaflet Margin
  • Dentate
  • Parted
  • Serrate
  • Serrate, doubly
Leaf or Leaflet Blade Base
  • Cordate
  • Rounded
  • Truncate
Leaf or Leaflet Tip
  • Acute
  • Rounded (obtuse)
Leaf or Leaflet Blade Surface
  • Glabrous (NO hairs)
  • Glandular
  • Pubescent
Succulence
  • Not succulent

Milky Juice
  • Juice NOT milky (watery)
Woodiness
  • Herbaceous
Spines or Thorns
  • Spines or Thorns ABSENT
Aromatic (vegetative structures)
  • Not aromatic
  • Aromatic
Life Cycle
  • Annual
Growth Habit (while flowering)
  • Prostrate
  • Spreading ascending
  • 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)
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
  • Connecticut
  • Delaware
  • Massachusetts
  • Maine
  • New Jersey
  • New York
  • Pennsylvania
  • South Carolina
  • Vermont
  • Arizona
  • California
  • Oregon
  • Washington
Canadian Province or Territory
  • British Columbia
  • Ontario
  • Quebec

  • California Growers Weed Identification Handbook, 1968 - 1998 University of California Publication # 4030-1, See page: 110
  • Garden Weeds of Southern California, 1981, See page: 68
  • Weeds of California, 1970, State of California Publications and Documents. See page: 275, 276
  • Weeds of California and other Western States, 2007 (ISBN 13: 978-1-879906-69-3) See Page: 835
  • Weeds of the Northeast, 1997 Cornell University ISBN# 0-8014-8334-4 See page: 242
  • Listed as a `Weed` by the Biota of North America Program, 2008 x
  • Listed in the WSSA Composite List of Weeds X
  • Eruca vesicaria ssp. sativa / Brassicaceae / garden-rocket
  • Weeds, 1955 (1980) Walter Conrad Muenscher, ISBN# 0-8014-1266-8 See page: 244, 245
  • Weeds of California, 1970, State of California Publications and Documents. See page: 210, 211
  • Weeds of the Northern U.S, and Canada, 1999 Royer and Dickinson, (ISBN# 1-55105-221-0) See page: 279
  • Listed as a `Weed` by the Biota of North America Program, 2008 x
  • Listed in the WSSA Composite List of Weeds X
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