Species Details

Ivesia paniculata

Ash Creek ivesia

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Photo of Ivesia paniculata
© 2007 F. Gauna
Photo of Ivesia paniculata
© 2007 F. Gauna
Photo of Ivesia paniculata
© 2007 F. Gauna
Scientific Name:
Ivesia paniculata T.W. Nelson & J.P. Nelson
Common Name:
Ash Creek ivesia
Family: Rosaceae
Element Code: PDROS0X0S0
USDA Plants Symbol: IVPA
Synonyms/Other Names:
Lifeform: perennial herb
Blooming Period: May-Aug
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Elevation:
1500 - 1950 meters
4920 - 6400 feet
General Habitats:
  • Great Basin scrub
  • Pinyon and juniper woodland
  • Upper montane coniferous forest
Microhabitat Details:
Microhabitat:
  • Gravelly (sometimes)
  • Rocky (sometimes)
  • Volcanic
Notes:
Known only from the Ash Valley region. Protected in part at Ash Valley RNA (BLM).
Threats:

Threatened by road maintenance, logging, trampling, and grazing.

Taxonomy:

Previously included as I. corymbosa, a name that was never validly published.

Threat List Total: 7
Total EOs % of EOs
EOs with Threat Listed: 22 85 %
THREAT LIST:
Grazing 18 69%
Road/trail construction/maint. 8 30%
Logging 5 19%
Foot traffic/trampling 5 19%
ORV activity 4 15%
Total Occurrences: 26
Element Occurrence Ranks:
A B C D X U
6 12 0 0 1 7
Occurrence Status:
Historical >20 Years 20
Recent <=20 Years 6
Presence:
Presumed Extant 25
Possibly Extirpated 1
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Lassen (LAS), Modoc (MOD)
Quads: Name (Quad Code)
Ambrose Valley (4112027), Ash Valley (4112016), Lane Reservoir (4112017), Letterbox Hill (4112018), Said Valley (4012087), Whitinger Mtn. (4012086)
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.
Presumed Extant
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Original Description: Brittonia 33(2):165-167 (1981)
Species Account: Ivesia paniculata profile for potential Species of Conservation Concern evaluation (2018)
Other: USFS Potential Species of Conservation Concern Profile
Other: Fremontia 16(1):15-17 (1988) [BLM management plans]