Arizona Wild Flowers
Wildflower Pictures And Photos

Yellowspine Thistle, Cirsium ochrocentrum

Yellowspine Thistle, Cirsium ochrocentrum Photos Taken September 23, 2006. Holbrook, Arizona.

Yellowspine Thistle Cirsium ochrocentrum	Yellowspine Thistle Cirsium ochrocentrum

Yellowspine Thistle Cirsium ochrocentrum, Sunflower or Aster Family ( Compositae ) or ( Asteraceae ), Yellowspine Thistle. Yellowspine Thistle is an biennial or perennial that spreads by roots or seeds. It blooms from April - August. Its flowers may be either white, pink or pale purple and are composed of only disc flowers. Its leaves, flowers and winged stems are covered with very sharp, stout spines. Small rosettes from creeping roots are seen in the late summer and fall. Height: Up To About 4 Feet Tall. Flowers: Color, red to pink or purple. Blooming Time: April - August. Fruit: The fruit is an achene with a bristly pappus 0.6 to 0.8 inch long. Leaves: The oblong - narrowly elliptic leaves are pinnately - lobed with pinate lobes. Found: Native to U.S A. Throughout Arizona. Normally in the high desert of Northern Arizona. Elevation: 3000 to 7000 feet. Habitat: Commonly found in sandy to gravelly washes. Miscellaneous: Flowering Photos Taken September 23, 2006. Holbrook, Arizona.