Species Details

Smilax jamesii

English Peak greenbrier

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Photo of Smilax jamesii
Sheli Wingo 2004
Photo of Smilax jamesii
Gladys Lucille Smith 1999
Photo of Smilax jamesii
Neal Kramer 2010
Scientific Name:
Smilax jamesii G.A. Wallace
Common Name:
English Peak greenbrier
Family: Smilacaceae
Element Code: PMSMI010D0
USDA Plants Symbol: SMJA
Synonyms/Other Names:
CA Rare Plant Rank: 4.2
Fed List: None
State List: None
Global Rank: G3G4
State Rank:
Other Status:
CRPR Changes:
changed from 1B.3 to 4.2 on 2016-08-26
changed from 1B.3 to 4.2 on 2016-07-11
Add Date: 1980-01-01
Date Edited: 2022-06-08
Lifeform: perennial rhizomatous herb
Blooming Period: May-Jul(Aug-Oct)
505 - 1975 meters
1655 - 6480 feet
General Habitat:
  • Broadleafed upland forest
  • Lower montane coniferous forest
  • Marshes and swamps
  • North Coast coniferous forest
  • Upper montane coniferous forest
General Micro Habitat: sometimes mesic depressions
Micro Habitat:
  • Lake Margins
  • Mesic (sometimes)
  • Streambanks
Previously CRPR 1B.3; more common than originally known. Potentially threatened by logging and associated road usage. Possibly threatened by vehicles, recreational activities, foot traffic, grazing, trampling, alteration of fire regimes, hydrological alterations, and non-native plants. See Brittonia 31:416-421 (1979) for original description.
Total Occurrences: 158
Element Occurrence Ranks:
6 57 58 13 0 24
Occurrence Status:
Historical >20 Years 22
Recent <=20 Years 136
Presumed Extant 158
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Del Norte (DNT), Shasta (SHA), Siskiyou (SIS), Trinity (TRI), Yuba (YUB)
Quads: Name (Quad Code)
Big Bend (4112118), Boulder Peak (4112351), Burney (4012186), Burney Mtn. West (4012176), Caribou Lake (4112218), Carrville (4112216), Chalk Mtn. (4012187), Chimney Rock (4112356), Covington Mill (4012287), Damnation Peak (4012285), Dead Horse Summit (4112127), English Peak (4112342), Goose Gap (4012281), Greenview (4112258), Grider Valley (4112362), Gridley (3912136), Hatchet Mtn. Pass (4012177), Marble Mountain (4112352), Mt. Hilton (4012381), Papoose Creek (4012276), Pondosa (4112126), Roaring Creek (4012188), Rush Creek Lakes (4012278), Sawyers Bar (4112332), Schell Mtn. (4012275), Shoeinhorse Mtn. (4112211), Siligo Peak (4012288), Skunk Ridge (4112117), Tangle Blue Lake (4112226), Tanners Peak (4112331), Trinity Center (4012286), Trinity Dam (4012277), Ukonom Lake (4112353), Weaverville (4012268), Whisky Bill Peak (4112215), Ycatapom Peak (4112217), Youngs Peak (4112323)
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
Counties   Quads