Arizona Wild Flowers
Wildflower Pictures And Photos

Thread - Leaf Groundsel
Senicio flaccidus var. douglasii

Thread - Leaf Groundsel, Senicio flaccidus var. douglasii

Thread - Leaf Groundsel Senicio flaccidus var. douglasii	Thread - Leaf Groundsel Senicio flaccidus var. douglasii

Thread - Leaf Groundsel Senicio flaccidus var. douglasii, Aster Family: ( Asteraceae ), Thread - Leaf Groundsel. Also called: Creek Senecio, Shrubby Butterweed, or Smooth Threadleaf Ragwort. These plants are dicots of the Asteraceae family growing as a subshrub - shrub. This plant is considered Native to the United States of America.. Bushy perennial, 3 feet tall or more, 2 1/2 feet spread; glabrous leaves, 1 to 4 inches long, with 5 to 9 needle-like lobes. Threadleaf groundsel is a many-stemmed evergreen composite. The stems and leaves are gray-green. The leaves are divided into three to seven segments and may be hairy or nearly smooth. The stems are herbaceous, although somewhat woody at the base, and may have variable hairiness. Showy yellow flowers emerge from March through November. Threadleaf groundsel is a common range plant in Colorado and Utah, and south to Texas and Mexico. It is common in the grassland areas of western Texas. Disturbance and overgrazing cause it to increase in abundance. Hummingbirds, bees, butterflies and other insects collect nectar from the flowers. Seed eaters eat the seeds. Height: Growing about 18 to 48 inches tall. Flowers: Flowerheads 3 - 4 inches across; yellow ray florets and purplish brown disk florets. Eight - Thirteen Rays. The ray florets are sterile, and only the disk florets produce seeds. Blooming Time: March - May, then again in the fall months of August - October.. Leaves: The leaves are pinnate with narrow, thread-like lobes. Found: Found throughout Southwestern USA, and northwestern Mexico, up to about 6,000 feet elevation. Elevation: 0 - 6,000 Feet. Habitat: Alkaline, well-drained/light soils. Dry slopes, stream beds, roadsides, and washes. Miscellaneous: Flowering Photos Taken September 23, 2006. Cherry Road.