Species Details

Arabis aculeolata

Waldo rockcress

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Photo by © 2020 John Doyen  max-height:128px; max-width:145px;
© 2020 John Doyen
Photo by © 2008 Keir Morse  max-height:128px; max-width:145px;
© 2008 Keir Morse
Photo by © 2021 Scot Loring  max-height:128px; max-width:145px;
© 2021 Scot Loring
Scientific Name:
Arabis aculeolata Greene
Common Name:
Waldo rockcress
Family: Brassicaceae
Element Code: PDBRA06010
USDA Plants Symbol: ARAC4
Synonyms/Other Names:
CA Rare Plant Rank: 2B.2
Fed List: None
State List: None
Global Rank: G4
State Rank:
S2
Other Status: SB_BerrySB
CRPR Changes:
changed from 2.2 to 2B.2 on 2012-04-11
Add Date: 1980-01-01
Date Edited: 2022-03-01
Lifeform: perennial herb
Blooming Period: Apr-Jun
Elevation:
410 - 1800 meters
1345 - 5905 feet
General Habitat:
  • Broadleafed upland forest
  • Lower montane coniferous forest
  • Upper montane coniferous forest
General Micro Habitat:
Micro Habitat:
  • Serpentinite
Notes:
On watch list in OR. 
Threats:
Threatened by logging and mining.
Taxonomy:
Not in TJM 2.
Other:
Total Occurrences: 8
Element Occurrence Ranks:
A B C D X U
0 0 0 0 0 8
Occurrence Status:
Historical >20 Years 6
Recent <=20 Years 2
Presence:
Presumed Extant 8
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA), Oregon (OR)
California Counties and Islands: Name (Code)
Del Norte (DNT), Siskiyou (SIS)
Quads: Name (Quad Code)
Broken Rib Mtn. (4112386), Clear Creek (4112364), Devils Punchbowl (4112376), Hamburg (4112371), High Divide (4112481), High Plateau Mtn. (4112388), Kangaroo Mtn. (4112382), Preston Peak (4112375), Shelly Creek Ridge (4112387)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Map

Presumed Extant
Counties   Quads