Rubus lasiococcus

Rubus lasiococcus is a species of wild blackberry known by the common names roughfruit berry and dwarf bramble. It is native to western North America from British Columbia to northern California, where it grows in mountain forests.[2][3][4] In the southern half of its range the plant is commonly found in a plant community in the understory of mountain hemlock (Tsuga mertensiana) and Shasta red fir (Abies magnifica var. shastensis).[5]

Rubus lasiococcus
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rosaceae
Genus: Rubus
Species:
R. lasiococcus
Binomial name
Rubus lasiococcus
A.Gray 1882
Synonyms[1]
  • Comarobatia lasiococca (A.Gray) Greene

Rubus lasiococcus is a tangling, prostrate shrub with very slender stolons spreading along the ground and rooting where their nodes come in contact with moist substrate, forming a mat. Some stems grow erect to bear flowers. The leaves are each deeply divided into three lobes, or compound into three toothed leaflets, borne on a petiole a few centimeters long. The inflorescence is a solitary flower or a pair of flowers with five reflexed sepals and five white petals each just under a centimeter (0.4 inch) long. The fruit is a densely hairy red aggregate less than a centimeter (<0.4 inch) wide.[6]

References
  1. The Plant List, Rubus lasiococcus A.Gray
  2. Biota of North America Program 2014 county distribution map
  3. Calflora taxon report, University of California, Rubus lasiococcus A. Gray, rough fruit berry, roughfruit berry
  4. Turner Photographics, Rubus lasiococcus - Wildflowers of the Pacific Northwest includes description, photos, distribution map
  5. US Forest Service Plant Communities
  6. Flora of North America, Rubus lasiococcus A. Gray, 1882. Roughfruit berry
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