Rhaponticum repens: Country Or Region Of Origin
Eurasia
Plant Profile: Rhaponticum repens
Taxonomy: Rhaponticum repensNames
Russian Knapweed
Phonetic Spelling:ra-PON-ti-kum REE-penz
Genus:Rhaponticum
Species:repens
Family:Asteraceae
Russian Knapweed is a long-lasting weed belonging to the daisy family.
Rhaponticum repens Feature Summary
Rhaponticum repens Image Gallery
Tags
#weed
#weedy
#perennial weed
#problem for horses
#non-toxic for dogs
#non-toxic for cats
Similar Plants
Rhaponticum repens Feature Summary
Attributes
Eurasia
Perennial
Fruit
Ivory colred achene with tufts of hair that fall off as fruits mature.
Achene
Cream/Tan
Flowers
Pink to purple blooms from summer through fall, as they mature they turn a straw color. The head-inflorecese is urn-shaped and 1/2"
Pink
Purple/Lavender
Summer
Fall
< 1 inch
Leaves
Basal rosette of leaves 2"-4" lobed or unlobed. Stem leaves oblong, pinnately lobed to entire and up to 6" long they get smaller and less lobed toward the top of the stem.
Green
Simple
Rosulate
Entire
Lobed
3-6 inches
Whole Plant Traits
Perennial
Weed
Stem
Landscape
Problem for Horses
Rhaponticum repens Image Gallery
Rhaponticum repens Attributes
Rhaponticum repens: Life Cycle
Annual
Biennial
Bulb
Perennial
Woody
Rhaponticum repens Fruit
Rhaponticum repens: Fruit Description
Ivory colred achene with tufts of hair that fall off as fruits mature.
Rhaponticum repens: Fruit Type
Achene
Aggregate
Berry
Capsule
Caryopsis
Drupe
Follicle
Legume
Nut
Pome
Samara
Schizocarp
Siliqua
Rhaponticum repens: Fruit Color
Cream/Tan
Rhaponticum repens Flowers
Rhaponticum repens: Flower Description
Pink to purple blooms from summer through fall, as they mature they turn a straw color. The head-inflorecese is urn-shaped and 1/2"
Rhaponticum repens: Flower Color
Pink
Purple/Lavender
Rhaponticum repens: Flower Inflorescence
Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel
Rhaponticum repens: Flower Bloom Time
Winter
Spring
Summer
Fall
Rhaponticum repens: Flower Shape
Bell
Cross
Crown
Cup
Dome
Funnel
Irregular
Lipped
Radial
Saucer
Star
Trumpet
Tubular
Urn
Wheel
Rhaponticum repens: Flower Size
1-3 inches
3-6 inches
< 1 inch
> 6 inches
Rhaponticum repens Leaves
Rhaponticum repens: Leaf Description
Basal rosette of leaves 2"-4" lobed or unlobed. Stem leaves oblong, pinnately lobed to entire and up to 6" long they get smaller and less lobed toward the top of the stem.
Rhaponticum repens: Leaf Color
Green
Rhaponticum repens: Leaf Type
Compound (Pinnately , Bipinnately, Palmately)
Fronds
Needles
Sheath
Simple
Rhaponticum repens: Leaf Arrangement
Alternate
Opposite
Other/more complex
Rosulate
Whorled
Rhaponticum repens: Leaf Margin
Crenate
Crenulate
Dentate
Denticulate
Doubly Crenate
Doubly Dentate
Doubly Serrate
Entire
Lobed
Serrate
Sinuate
Undulate
Rhaponticum repens: Hairs Present
No
Yes
Rhaponticum repens: Leaf Length
< 1 inch
1-3 inches
3-6 inches
> 6 inches
Rhaponticum repens Whole Plant Traits
Rhaponticum repens: Plant Type
Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower
Rhaponticum repens Stem
Rhaponticum repens: Stem Is Aromatic
No
Yes
Rhaponticum repens Landscape
Rhaponticum repens: Problems
Allelopathic
Contact Dermatitis
Frequent Disease Problems
Frequent Insect Problems
Invasive Species
Malodorous
Messy
Poisonous to Humans
Problem for Cats
Problem for Children
Problem for Dogs
Problem for Horses
Short-lived
Spines/Thorns
Weak Wood
Weedy
