Pink, Rose, Red, or Purple Flowered Forbs

Pink, Rose, Red & Purple Flowered Forbs
Black henbane
Blue Mustard
Bull thistle
Canada thistle
Common burdock
Diffuse knapweed
Iberian knapweed
Meadow knapweed
Musk thistle
Purple loosestrife
Purple starthistle
Red clover
Redstem filaree
Russian knapweed
Scotch thistle
Spiny plumeless thistle
Spotted knapweed
Squarrose knapweed
Tall morning-glory


Redstem Filaree
Erodium cicutarium (L.) L’Hér. ex Ait. (Geranium family, Geraniaceae)


Spreading or erect, winter annual or biennial forb, 4 to 24 inches long, generally from a basal rosette; covered with partially glandular hairs; stems are often tinted red in color; small taproot with a fibrous root system; it often carpets large areas.

Leaves: Basal rosette leaves are up to 8 inches long and 2-1/2 inches across; odd-pinnate and have long petioles; both the central stalk of these compound leaves and their petioles are reddish green or reddish brown and covered with long white hairs, like the stems; hairy leaflets are up to 1 inch long and 1/2 inch wide, pinnately cleft with both shallow and deep lobes, margins ciliate; cauline leaves similar basal leaves, but smaller in size with shorter petioles; base of each cauline leaf, there is a pair of small stipules that are ovate in shape.

Flowers: Flowers February to May; stems bear 2 to 8 bright pink to purple, 5-petalled flowers, 1/2 inch wide, arranged in loose cluster of 2 to 12, usually with dark spots on the bases; each flower occurring on a relatively long flower stalk up to 1 foot tall.

Fruit: Each flower develops into a seed capsule in the form of a long narrow beak (stork’s bill) up to 2 inches long; at maturity, capsule splits apart into 5 narrow linear segments; each segment has a single seed at the bottom; seed linear in shape, somewhat broader at the top and tapering to a point at the bottom; as the attached segment dries, it forms an irregular spiral that can drill the seed into the ground.


Cultivated and disturbed or degraded sites in meadows, grassland and woodland communities, and roadsides; it grows in well-drained, clayey, loamy, or sandy soil within elevations that generally range from 3,000 to 8,100 feet.


Reproduces by seed; some estimates of total seed produced per plant are more than 5,000.


Native to Europe; redstem filaree colonizes easily and quickly forms dense monocultures on disturbed habitats. This species generally occurs as a weed in wildland areas of the Southwestern Region rather than as an invasive plant.

Collage of image for Redstem filaree


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Invasive plants and weeds of the national forests and grasslands in the southwestern region
Redstem filaree flowers and foliage Redstem filaree flowers and foliage Redstem filaree plants Redstem filaree flowers and fruit