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Rhamnus pilosa

(Trelease ex Curran) Abrams

Redberry Buckthorn

G2Imperiled (G2G3) Found in 3 roadless areas NatureServe Explorer →
G2ImperiledGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.156142
Element CodePDRHA0C065
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicoccurs (regularly, as a native taxon) in multiple nations
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderRhamnales
FamilyRhamnaceae
GenusRhamnus
Synonyms
Rhamnus crocea ssp. pilosa(Trel.) C.B. WolfRhamnus crocea var. pilosaTrel. ex Curran
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Taxonomic Comments
Flora of North America Editorial Committee (2016) treat Rhamnus crocea, R. ilicifolia, R. pilosa as distinct species, also mentioning the Mexico endemic R. insula, which was treated by Wolf (1938) as R. crocea ssp. insula. In contrast, Kartesz (1994) recognized the taxa in the flora area as subspecies: R. crocea ssp. crocea, R. crocea ssp. ilicifolia, and R. crocea ssp. pilosa.
Conservation Status
Review Date2000-11-22
Change Date2000-11-22
Edition Date2000-11-22
Edition AuthorsMacBryde, Bruce
Rank Reasons
Rhamnus crocea ssp. pilosa is considered to be in southern California (300-700 meters) in San Diego County and northern Baja California (Mexico), and perhaps Arizona; it has been considered somewhat uncommon (Hickman 1993; Skinner and Pavlik 1994).
Ecology & Habitat
Other Nations (1)
United StatesN2
ProvinceRankNative
CaliforniaSNRYes
ArizonaSNRYes
Plant Characteristics
Economic Value (Genus)No
Roadless Areas (3)
California (3)
AreaForestAcres
Eagle PeakCleveland National Forest6,481
No NameCleveland National Forest4,897
Pine CreekCleveland National Forest503
References (11)
  1. Abrams, L. 1951. Illustrated flora of the Pacific states: Washington, Oregon, and California. Vol. 3. Geraniaceae to Scrophulariaceae. Stanford Univ. Press, Stanford, California. 866 pp.
  2. Beauchamp, R.M. 1986. A flora of San Diego County, California. Sweetwater River Press, California. 241 pp.
  3. Flora of North America Editorial Committee (FNA). 2016. Flora of North America north of Mexico. Vol. 12. Magnoliophyta: Vitaceae to Garryaceae. Oxford Univ. Press, New York. xxiv + 603 pp.
  4. Hickman, J. C., ed. 1993. The Jepson manual: Higher plants of California. University of California Press, Berkeley, CA. 1400 pp.
  5. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
  6. Kartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.
  7. Munz, P.A. 1974. A flora of southern California. Univ. California Press, Berkeley. 1086 pp.
  8. Munz, P.A., with D.D. Keck. 1959. A California flora. Univ. California Press, Berkeley. 1681 pp.
  9. Skinner, M.W., and B.M. Pavlik, eds. 1994. California Native Plant Society's Inventory of rare and endangered vascular plants of California. 5th edition. California Native Plant Society, Sacramento. 338 pp.
  10. USDA, Natural Resources Conservation Service, PLANTS Database [USDA PLANTS]. http://plants.usda.gov/. Accessed 2015.
  11. Wolf, C.B. 1938. The North American Species of <i>Rhamnus</i>. Rancho Santa Ana Bot. Gard. Monogr., Bot. Ser. 1: 1-136.