Carnegiea gigantea, Giant Saguaro

Southwest Desert Flora

Home to the plants of the Sonoran, Chihuahuan and Mojave Deserts

Cirsium ochrocentrum, Yellowspine Thistle

Cirsium ochrocentrum, Yellowspine Thistle

Cirsium ochrocentrum, Yellowspine Thistle, Southwest Desert Flora Cirsium ochrocentrum, Yellowspine Thistle, Southwest Desert Flora Cirsium ochrocentrum, Yellowspine Thistle, Southwest Desert Flora     Cirsium ochrocentrum, Yellowspine Thistle, Southwest Desert Flora Cirsium ochrocentrum, Yellowspine Thistle, Southwest Desert Flora     Cirsium ochrocentrum, Yellowspine Thistle


Scientific Name: Cirsium ochrocentrum
Common Name: Yellowspine Thistle
Also Called: Thistle (Spanish: Cardo)
Family: Asteraceae, Sunflower Family
Synonyms: (Cnicus ochrocentrus)
Status: Native
Duration: Biennial or perennial.
Size: Up to 3 feet.
Growth Form: Forb/herb; 1 or several stems, stems erect or ascending, white tomentose or covered with dense grayish-white matted hair.
Leaves: Grayish-white tomentose; alternate, leaves elliptic or oblanceolate, lower part of leaf with spiny margined wings, deeply pinnately lobed, margins with coarse teeth, tips of lobes with sharp yellow spines.
Flower Color: Pink, variable from purple, white or lavender; heads solitary or few, flowering stalk (peduncle) or not; bracts or phyllaries subtend flower heads linear or lanceolate always with sharp yellow spines; fruit an achene; pappus light brown bristles.
Flowering Season: May to October.
Elevation: 4,500 to 8,000 feet.

Habitat Preferences: Disturbed areas, pinyon-juniper communities, open areas, fields, roadsides.

Recorded Range: Yellowspine Thistle is found mostly in the southern half of the western United States in AZ, CA, CO, KS, NE, NM, OK, SD, TX, UT and WY. It may also be found in northern Mexico. In Arizona, Yellowspine Thistle is found in the northern and southern parts of the state and in Graham County.

North America & US County Distribution Map for Cirsium ochrocentrum.

U.S. Weed Information: Cirsium ochrocentrum is listed in: Weeds of Nebraska and the Great Plains, Weeds of the United States and Canada, and Weeds of the West. Plants included here may become weedy or invasive.
Invasive/Noxious Weed Information: Cirsium ochrocentrum is listed as a Noxious Weed by the States of Arkansas, California and Iowa. Plants included here are invasive or noxious.
Wetland Indicator: No data available.
Threatened/Endangered Information: No data available

Genus Information: 95 species in Cirsium throughout all of North America. 19 species are found in Arizona. There are 2 subspecies of Yellowspine Thistle, both found in Arizona; Cirsium ochrocentrum ssp. martinii is found only in Arizona and New Mexico and Cirsium ochrocentrum ssp. ochrocentrum, Yellowspine thistle found in the localities noted above.

Comments: Yellowspine Thistle is a common upland thistle is Arizona at elevations above 4,500 feet. As with most thistles it readily attracts bees, wasps and butterflies.

In Southwest Desert Flora also see; Arizona Thistle, Cirsium arizonicum, Graham's Thistle
Cirsium grahamii and New Mexico Thistle, Cirsium neomexicanum.

Yellowspine Thistle was used as a treatment by the Zuni as a diuretic. View see the full species account from Native American Ethnobotany, University of Michigan, Dearborn.

Date Profile Completed: 9/29/2012; Updated, 07/25/2015, updated format 10/10/2017
References:
U.S. Dept. of Agriculture, Natural Resources Conservation Service on-line database
Arizona Flora, Kearney, Thomas H., Peebles, Robert H., 1960, University of California Press, Berkley and Los Angeles
The Jepson Manual, Citation: http://ucjeps.berkeley.edu/interchange/I_treat_indexes.html Sat Sep 29 07:01:09 2012
David J. Keil, FNA | Family List | FNA Vol. 19, 20 and 21 | Asteraceae | Cirsium, Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 16+ vols. New York and Oxford. (accessed 09/29/2012)
SEINet for synonyms, scientific names and recorded geographic locations, http://swbiodiversity.org/seinet/