CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-16sep 9-2-16
Status: record crataegus_castlegarensis - Sat, Oct. 22, 2016 04:54 ET c
Crataegus castlegarensis
common nameCastlegar hawthorne
CalPhotos image
more photos
© 2008 John Dittes  Follow image link for photo data.
life form deciduous shrub
CA Rare Plant Rank
List 3
LIST 3: We need more information about this plant (Review List).
state rank
S1S3      ranking system key
global rank
G5     G5: demonstrably secure to ineradicable
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (9):
Crescent Mills (605C) 4012018, Oak Run (646A) 4012261, Burney Mountain East (662D) 4012175, Devils Rock (664D) 4012271, Adin (676B) 4112028, Fall River Mills (678C) 4112114, Dana (679D) 4112115, Donica Mountain (694C) 4112132, Egg Lake (695D) 4112133
quad data info

Counties, states, regions:
Modoc (MOD), Shasta (SHA), Idaho (ID), Montana (MT), Oregon (OR), Utah (UT), Washington (WA), Wyoming (WY)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Riparian woodland (RpWld)moist rocky loam
blooming period May-Jun(Jul),   Months in parentheses are uncommon.
elevation range0 - 1455 meters
How rare is this species in CA? Need information on current status, rarity and threats. Possibly threatened by logging, grazing, and recreational activities. Not in TJM (1993). See Sida 20:121 (2002) for original description and Madrono 51:395 (2004) for information on first report in California. Apparently widespread outside of California where it is known from WA, OR, MT, ID, UT, WY, British Columbia and Alberta. Can be confused with C. douglasii and C. suksdorfii.
full nameCrataegus castlegarensis Phipps & R. O'Keenan
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym   Element Code  PDROS0H9E0
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
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Suggested citation: California Native Plant Society (CNPS). 2016. Inventory of Rare and Endangered Plants (online edition, v7-16sep). California Native Plant Society. Sacramento, CA. Accessed on Sat, Oct. 22, 2016 from

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