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Montana Field Guides

Cascara False Buckthorn - Frangula purshiana
Other Names:  Rhamnus purshiana


Global Rank: G4G5
State Rank: S4
* (see State Rank Reason below)

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 6

External Links






State Rank Reason (see State Rank above)
Of regular occurence along rivers, forest margins and edges of marshes. Widespread in NW counties.
 
General Description
Shrub or small tree, sometimes monoecious. Stems erect, 2–4 m; twigs, petioles and veins brown-puberulent. Leaves alternate, 4–12 cm long, serrulate; petioles 5–20 mm long. Inflorescence several-flowered, axillary umbels. Flowers perfect or unisexual, 5-merous; sepals 1–2 mm long, puberulent; petals minute; stigmas 2–3. Drupe 2- to 3-seeded, 6–9 mm across (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Lesica (2012) treats this species in the genus Rhamnus.

Species Range
Present
 


Range Comments
BC, MT south to CA and ID (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 5

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat

References
  • Additional ReferencesLegend:   View Online Publication
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    • 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.
    • BCDA. 1941. Propagation of the cascara tree, a conservation measure. Department of Agriculture of British Columbia [BCDA] Bulletin No. 108. 9 pp.
    • Booth, W. E. and J. C. Wright. 1966. Flora of Montana. Part II. Dicotyledons. MSU Dept. Bot. & Microb.
    • Clay-Poole, S.T. 1999. Ethnobotany and cultural resources of the Washington State Department of Transportation. WSDOT Environmental Affairs Office, Cultural Resources.
    • Collingwood, G.H., and W.D. Brush. 1965. Knowing your trees. Revised and edited by D. Butcher. American Forestry Association, Washington, D.C. 349 pp.
    • Collingwood, G.H., and Warren Brush. 1964. Knowing Your Trees. The American Forestry Association, Washington, D.C. 349 p.
    • Cronquist, A., N. H. Holmgren, and P. K. Holmgren. 1997. Intermountain flora: Vascular plants of the Intermountain West, USA. Volume 3, Part A, subclass Rosidae (except Fabeles). New York Botanical Garden, Bronx, NY. 446 pp.
    • Davis, R. J. 1952. Flora of Idaho. W.C. Brown Co., Dubuque, Iowa. 828 pp.
    • Dirr, M.A., and C.W. Heuser Jr. 1987. The reference manual of woody plant propagation. Varsity Press, Athens, Georgia. 239 pp.
    • Dorn, R. D. 1984. Vascular Plants of Montana. Cheyenne, WY: Mountain West Publishing. 276 pp.
    • Douglas, G. W., G. B. Straley, and D. Meidinger (eds.). 1991. The vascular plants of British Columbia. Part 3 - Dicotyledons (Primulaceae through Zygophyllaceae and Pteridophytes). Ministry of Forests, Victoria, BC. 170 pp.
    • Elias, T. B. 1980. The complete trees of North America, field guide and natural history. Book Division, Times Mirror Magazines, Inc. 948 pp.
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    • Habeck, R.J. 1992. Rhamnus purshiana. In W.C. Fischer, compiler, The Fire Effects Information System (database), USDA Forest Service, Intermountain Research Station, Intermountain Fire Sciences Laboratory, Missoula, Montana.
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    • 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: J.T. Kartesz, and C.A. Meacham, eds. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, NC.
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    • Lesica, P., M. T. Lavin, and P. F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
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    • Small, E., and P.M. Catling. 1996. Poorly known economic plants of Canada - 11. Cascara, Rhamnus purshianus DC. Bull. Can. Bot. Assoc. 29: 58-59.
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    • Turner, N.J. 1997. Traditional ecological knowledge. Pages 275-298 in P.K. Schoonmaker, B. von Hagen and E.C. Wolf, eds., The rain forests of home: Profile of a North American bioregion. Island Press, Washington, D.C.
    • Tyler, V.E. 1995. Plant drugs, healing herbs, and phytomedicinals. In HerbalGram No. 33.
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Cascara False Buckthorn — Frangula purshiana.  Montana Field Guide.  .  Retrieved on , from