Carnegiea gigantea, Giant Saguaro

Southwest Desert Flora

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

Cirsium ochrocentrum, Yellowspine Thistle

Porophyllum gracile, Slender Poreleaf

Porophyllum gracile, Slender PoreleafPorophyllum gracile, Slender PoreleafPorophyllum gracile, Slender PoreleafPorophyllum gracile, Slender PoreleafPorophyllum gracile, Slender Poreleaf

Scientific Name: Porophyllum gracile
Common Name: Slender Poreleaf
Also called: Odora and Yerba del Venadov (Spanish: Hierba del Venado)
Family: Asteraceae, Sunflower Family
Synonyms: (Porophyllum caesium P. junciforme, P. nodosum, P. putidum, P. vaseyi)
Status: Native
Duration: Perennial
Size: 18 inches
Growth Form: Subshrub; base may be suffrutescent or woody, erect with multiply stems, ascending; glaucous, and glandular.
Leaves: Light green; glaucous; leaf blades narrowly linear or thread-like (filiform); glandular.
Flower Color: White or purplish; flower heads narrow; disk flowers only, numerous 20 to 30, a distinctive curling style extends from the corolla tube; phyllaries or bracts subtending flower heads are waxy with visible dot/dash like glands, fruit is an achene.
Flowering Season: October to June.
Elevation: Up to 4,000 feet.

Habitat Preferences: Dry rocky slopes, canyons, sandy and gravelly soils.

Recorded Range: Southwest United States, AZ, CA, NM, NV, TX and UT. Also native to Baja California and Mexico. Southeast and western 23 of Arizona.

North America & US Counties Distribution Map for Porophyllum gracile.

U.S. Weed Information: No information available.
Invasive/Noxious Weed Information: No information available.
Wetland Indicator: No information available.
Threatened/Endangered Information: No information available.

Genus Information: 6 species in Porophyllum in southwestern United States. 2 species native to Arizona.

Comments: Slender Poreleaf or Odora has a strong mostly unpleasant scent. It is well represented in both the Sonoran and Mojave deserts. The Spanish name, Yerba de Venado, translates to "Grass of the Deer".

A related species, Yerba Porosa, Porophyllum ruderale, is found in southern Arizona.

Slender Poreleaf was commonly used by Native-Americans in a decoction s for pain and aches and rubbed in as a liniment. See a full species account from Native American Ethnobotany, University of Michigan, Dearborn.

Date Profile Completed: 7/3/2012; Updated, 07/26/2015, updated format 10/10/2017
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: Fri Aug 3 14:10:19 2012
John L. Strother, Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. 16+ vols. New York and Oxford. (accessed 07/03/2012)
SEINet for synonyms, scientific names and recorded geographic locations,