Cercocarpus montanus



INTRODUCTORY


 

1988 R. B. Shaw

AUTHORSHIP AND CITATION:
Gucker, Corey L. 2006. Cercocarpus montanus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/ [].

FEIS ABBREVIATION:
CERMON

SYNONYMS:
Cercocarpus argenteus Rydb.
    = C. montanus var. argenteus (Rydb.) Martin [132]

C. betuloides Nutt. [43,50,107,112,134,321]
    = C. m. var. glaber (Wats.) Martin [132]

C. b. var. betuloides Torrey & Gray [112]
    = C. m. var. glaber (Wats.) Martin [132]

C. b. var. blancheae (Schneid.) Little [112]
    = C. m. var. blancheae (Schneid.) Martin [132]

C. b. ssp. macrourus
    = C. montanus Raf. [47,132]

C. b. var. macrourus (Rydb.) Jepson [107,112]
   = C. m. var. macrourus (Rydb.) Jepson [132]

C. breviflorus Gray [134]
    = C. m. var. paucidentatus (Wats.) Martin [132]

C. b. var. eximius (Schneid.) [134]
    = C. m. var. paucidentatus (Wats.) Martin [132]

C. minutiflorus Abrams
    = C. montanus var. minutiflorus (Abrams) Martin [132]

C. m. var. flabellifolius (Rydb.) Kearney, Peebles [134]
    = C. m. var. montanus Raf. [132]

NRCS PLANT CODE [292]:
CEMO2

COMMON NAMES:
true mountain-mahogany
alderleaf mountain-mahogany
Arizona mountain-mahogany
birchleaf mountain-mahogany
California mountain-mahogany
hairy mountain-mahogany
island mountain-mahogany
Klamath mountain-mahogany
shaggy mountain-mahogany
silverleaf mountain-mahogany
smooth mountain-mahogany
true mountainmahogany
true mountain mahogany
western mountain-mahogany

TAXONOMY:
The scientific name of true mountain-mahogany is Cercocarpus montanus Raf. (Rosaceae) [30,47,64,115,132,133,313,317].

Many varieties are recognized. Throughout this review, varieties will be identified using their scientific names.

C. m. var. argenteus (Rydb.) Martin [86,178,223], silverleaf mountain-mahogany
C. m. var. blancheae (Schneider) Martin [177], island mountain-mahogany
C. m. var. glaber (Wats.) Martin [86,114,115,133,223], birchleaf mountain-mahogany
C. m. var. macrourus (Rydb.) Martin [177], Klamath mountain-mahogany
C. m. var. minutiflorus (Abrams) Martin [177], true mountain-mahogany
C. m. var. montanus [47,178], alderleaf mountain-mahogany
C. m. var. paucidentatus (Wats.) Martin [178,223], shaggy mountain-mahogany

True mountain-mahogany hybridizes with curlleaf mountain-mahogany (C. ledifolius) and littleleaf mountain-mahogany (C. intricatus) where populations overlap [222,274,313]. Hybrids of true mountain mahogany and Catalina Island mountain-mahogany (C. traskiea), an extremely rare species in California, were found on Los Angeles County's Santa Catalina Island. Researchers are managing for the recovery of pure Catalina Island mountain-mahogany stands [235].

LIFE FORM:
Shrub-tree

FEDERAL LEGAL STATUS:
No special status

OTHER STATUS:
Information on state-level protected status of plants in the United States is available at Plants Database.


DISTRIBUTION AND OCCURRENCE

SPECIES: Cercocarpus montanus
GENERAL DISTRIBUTION:
True mountain-mahogany occurs over a large portion of the western United States and northern Mexico. True mountain-mahogany's distribution extends from southern Montana west to southwestern Oregon south to Baja California Norte and northern Mexico and north through the Texas panhandle, extreme western portions of Nebraska, and South Dakota [86,262]. True mountain-mahogany is uncommon in Nevada and Idaho [124,133,260] and occurs only in the easternmost Great Basin ranges [47]. Only a single record exists for true mountain-mahogany in Kansas [262].

Distribution of varieties: Of the true mountain-mahogany varieties, C. m. var. montanus is the most widespread [151]. Cercocarpus montanus var. blancheae occurs on the Channel Islands and in the Western Traverse Range in California and is considered rare [112,177]. Plants Database provides a distributional map of true mountain-mahogany and its varieties. See Powell [223] for descriptions of the distributions of C. m. var. paucidentatus, C. m. var. glaber, and C. m. var. argenteus in the Trans-Pecos region of Texas. Kearney and Peebles [134] provide information on the distributions of C. m. var. paucidentatus and C. m. var. montanus in Arizona.

ECOSYSTEMS [77]:
FRES20 Douglas-fir
FRES21 Ponderosa pine
FRES28 Western hardwoods
FRES29 Sagebrush
FRES32 Texas savanna
FRES33 Southwestern shrubsteppe
FRES34 Chaparral-mountain shrub
FRES35 Pinyon-juniper
FRES36 Mountain grasslands
FRES38 Plains grasslands

STATES/PROVINCES: (key to state/province abbreviations)
UNITED STATES

AZ CA CO ID KS
MT NE NV NM OK
OR SD TX UT WY

MEXICO
B.C.N. Chih. Coah. Hgo. S.L.P.
Son.

BLM PHYSIOGRAPHIC REGIONS [23]:
1 Northern Pacific Border
3 Southern Pacific Border
4 Sierra Mountains
5 Columbia Plateau
6 Upper Basin and Range
7 Lower Basin and Range
9 Middle Rocky Mountains
10 Wyoming Basin
11 Southern Rocky Mountains
12 Colorado Plateau
13 Rocky Mountain Piedmont
14 Great Plains
15 Black Hills Uplift
16 Upper Missouri Basin and Broken Lands

KUCHLER [160] PLANT ASSOCIATIONS:
K005 Mixed conifer forest
K009 Pine-cypress forest
K010 Ponderosa shrub forest
K011 Western ponderosa forest
K012 Douglas-fir forest
K016 Eastern ponderosa forest
K017 Black Hills pine forest
K018 Pine-Douglas-fir forest
K019 Arizona pine forest
K022 Great Basin pine forest
K023 Juniper-pinyon woodland
K024 Juniper steppe woodland
K026 Oregon oakwoods
K030 California oakwoods
K031 Oak-juniper woodland
K032 Transition between K031 and K037
K033 Chaparral
K034 Montane chaparral
K035 Coastal sagebrush
K036 Mosaic of K030 and K035
K037 Mountain-mahogany-oak scrub
K038 Great Basin sagebrush
K055 Sagebrush steppe
K069 Bluestem-grama prairie
K086 Juniper-oak savanna

SAF COVER TYPES [69]:
66 Ashe juniper-redberry (Pinchot) juniper
209 Bristlecone pine
210 Interior Douglas-fir
219 Limber pine
220 Rocky Mountain juniper
233 Oregon white oak
237 Interior ponderosa pine
238 Western juniper
239 Pinyon-juniper
240 Arizona cypress
243 Sierra Nevada mixed conifer
246 California black oak
249 Canyon live oak
250 Blue oak-foothills pine
255 California coast live oak

SRM (RANGELAND) COVER TYPES [252]:
101 Bluebunch wheatgrass
102 Idaho fescue
104 Antelope bitterbrush-bluebunch wheatgrass
105 Antelope bitterbrush-Idaho fescue
109 Ponderosa pine shrubland
110 Ponderosa pine-grassland
201 Blue oak woodland
202 Coast live oak woodland
204 North coastal shrub
205 Coastal sage shrub
206 Chamise chaparral
207 Scrub oak mixed chaparral
208 Ceanothus mixed chaparral
209 Montane shrubland
210 Bitterbrush
304 Idaho fescue-bluebunch wheatgrass
314 Big sagebrush-bluebunch wheatgrass
315 Big sagebrush-Idaho fescue
317 Bitterbrush-bluebunch wheatgrass
318 Bitterbrush-Idaho fescue
322 Curlleaf mountain-mahogany-bluebunch wheatgrass
403 Wyoming big sagebrush
412 Juniper-pinyon woodland
413 Gambel oak
415 Curlleaf mountain-mahogany
416 True mountain-mahogany
417 Littleleaf mountain-mahogany
421 Chokecherry-serviceberry-rose
503 Arizona chaparral
504 Juniper-pinyon pine woodland
509 Transition between oak-juniper woodland and mahogany-oak association
601 Bluestem prairie
604 Bluestem-grama prairie
612 Sagebrush-grass
613 Fescue grassland
709 Bluestem-grama
714 Grama-bluestem
721 Sand bluestem-little bluestem (plains)
735 Sideoats grama-sumac-juniper

HABITAT TYPES AND PLANT COMMUNITIES:
True mountain-mahogany is a dominant species in the following vegetation classifications:

General/Southwest:

Arizona:

California:

Colorado:

Idaho:

Montana:

Nebraska:

Nevada:

New Mexico:

Oklahoma:

Oregon:

South Dakota:

Texas:

Utah:

Wyoming:

Mexico:
Baja California Norte: