Flowers with a hairy floral tube, 5 hairy sepals, 5 petals, 25 stamens; many pistils. Santiago Truck Trail, Cleveland National Forest, Orange Co., CA. 4-25-09. © Joan Avise

Sticky Cinquefoil

Potentilla (=Drymocallis) glandulosa

A 1-3 ft. erect perennial herb with a woody base, often reddish and branching above, with sticky, hairy foliage and abundant glandular hairs at the stem base.  It is occasional in coastal sage scrub, chaparral and oak woodland in moist areas of the San Joaquin Hills, southern foothills and Santa Ana Mountains (Roberts).  The fruit is an achene. Flowering Apr-July.

“Sticky” plants are thought to be protocarnivorous; i.e. capable of digesting arthropods or other organic material trapped on the surface and absorbing the breakdown products for use in the plant.

Two local subspecies, glandulosa and reflexa, the latter named Greene's Cinquefoil by Roberts. Roberts shows ssp. reflexa in Santa Ana Mountains only. 

Rosaceae

Back to Rosaceae of Orange County, California
Back to Eudicots of Orange County, California
Back to Natural History of Orange County, California


Flowers are in terminal clusters, cream to pale yellow. Nix Nature Center, Laguna Coast Wilderness Park, Laguna Beach, CA. 3-28-09. © Joan Avise

Nix Nature Center, Laguna Coast Wilderness Park, Laguna Beach, CA. 3-28-09. © Joan Avise

Nix Nature Center, Laguna Coast Wilderness Park, Laguna Beach, CA. 3-28-09. © Joan Avise

Nix Nature Center, Laguna Coast Wilderness Park, Laguna Beach, CA. 3-28-09. © Joan Avise

Leaves resemble those of strawberries, pinnately compound with three pairs of saw-toothed leaflets and well developed stipules. Santiago Truck Trail, Cleveland National Forest, Orange Co., CA. 4-25-09. © Joan Avise