Porophyllum 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)
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 2⁄3 of Arizona.
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.
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.