Regularity: Regularly occurring
Localities documented in Tropicos sources
United States (North America)
Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
- Anonymous. 1986. List-Based Rec., Soil Conserv. Serv., U.S.D.A. Database of the U.S.D.A., Beltsville. http://www.tropicos.org/Reference/1103
- Munz, P. A. & D. D. Keck. 1959. Cal. Fl. 1–1681. University of California Press, Berkeley. http://www.tropicos.org/Reference/1717
- Munz, P. A. 1974. Fl. S. Calif. 1–1086. University of California Press, Berkeley. http://www.tropicos.org/Reference/1719
- Moran, R. 1943. A Revision of Dudleya, Subgenus Stylophyllum - ii. Desert Pl. Life 15: 9–14. http://www.tropicos.org/Reference/27842
Global Range: California endemic from near San Juan Capistrano, Orange Co., to near Oceanside, San Diego Co.
Comments: Grows in dry rocky places, below 1200 ft. elevation (Munz, 1959) in coastal sage scrub.
Life History and Behavior
Molecular Biology and Genetics
Barcode data: Dudleya viscida
Statistics of barcoding coverage: Dudleya viscida
Public Records: 2
Specimens with Barcodes: 2
Species With Barcodes: 1
National NatureServe Conservation Status
Rounded National Status Rank: N2 - Imperiled
NatureServe Conservation Status
Rounded Global Status Rank: G2 - Imperiled
Reasons: California endemic known from coastal areas in SW California, where threatened by urbanization.
Comments: Urbanization is this species' biggest threat.
This dudleya is endemic to southern California, where it is known from only about 20 occurrences in San Diego, Orange, and Riverside Counties. It is mainly found on coastal bluffs and inland chaparral rocky slopes.
The Dudleya viscida plant has a basal clump of erect fleshy, pointed leaves which are nearly cylindrical or most often elliptical in cross section. They are pale green to yellow-green or red in color and covered in a sticky, oily exudate which has a faintly resinous scent.
It grows erect stems with many-branched inflorescences, with each branch bearing up to 10 flowers. Each flower is pink to nearly white with red veining or streaks and protruding stamens between the pointed petals.