White Flowered Forbs

White Flowered Forbs
African rue
Broadleaved pepperweed
Field bindweed
Hary whitetop
Horehound
Lens-podded hoarycress
Onionweed
Oxeye daisy
Poison hemlock
White clover
White sweetclover
Whitetop

 

Oxeye Daisy
Leucanthemum vulgare Lam. (Aster family, Asteraceae)
 

Description

Prostrate, shallow-rooted, perennial forb with stems that sprout laterally from creeping root stock; when in flower, height ranges from 12 to 36 inches tall and little branched. The root system is densely fibrous and forms offsets from short rhizomes.

Leaves: The central stem is glabrous to slightly hairy and often angular or furrowed; small tuft of basal leaves develops at the base of the plant, spatula-shaped, broadly toothed, and 2 to 5 inches long and 2 inches wide; while alternate leaves occur sparingly along the central stem, up to 5 inches long and 3/4 inch wide, becoming smaller as they ascend the stem, dark green on both sides, smooth, and glossy; lower leaves are often oblanceolate with slender petioles, while the middle to upper leaves are more oblong and often clasp the stem. Their margins are coarsely dentate, and some of the alternate leaves are often pinnatifid toward the base.

Flowers: Flowers May to August; 1 to 40, nearly naked stems end in a single daisy-like flower head, 1 to 2 inches across, with 15 to 35 white, oblong petalled ray flowers surrounding numerous tiny yellow, 5-lobed disk flowers; flower head receptacle noticeably flattened; at base of the flower head are several series of green floral bracts with membranous, brown margins that are brown and membranous.

Fruit: Fruit is a dark, oblong achene with 10 lighter colored ribs, less than 1/16 inch long; pappus lacking.

Habitat

Cultivated and disturbed or degraded sites on well-drained, but moist soils in meadows, grassland, woodland, and forest communities, and roadsides within elevations that generally range from 5,000 to 9,500 feet.

Propagation/Phenology

Reproduces both vegetatively and by seed; some estimates of total seed production per plant range from 1,300 to 4,000.

Comments

Native to Eurasia where it is allowed to grow undisturbed; oxeye daisy often forms dense colonies. This species generally occurs as a weed in wildland areas of the Southwestern Region rather than as an invasive plant.

Collage of images of Oxeye Daisy

 
Forest Service Shield
Invasive plants and weeds of the national forests and grasslands in the southwestern region
Oxeye daisy plants Oxeye daisy flower heads Oxeye daisy roots Oxeye diasy upper stems and foliage