Species Details

Agave shawii var. shawii

Shaw's agave

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Photo of Agave shawii var. shawii
©2017 Keir Morse
Photo of Agave shawii var. shawii
©2013 Keir Morse
Photo of Agave shawii var. shawii
©2017 Keir Morse
CA Rare Plant Rank: 2B.1
Fed List: None
State List: None
Global Rank: G2G3T2T3
State Rank:
S1
Other Status: IUCN_EN; SB_CalBG/RSABG; SB_SBBG
CRPR Changes:
changed from 2.1 to 2B.1 on 2013-06-12
Add Date: 1974-01-01
Date Edited: 2022-09-06
Lifeform: perennial leaf
Blooming Period: Sep-May
JFMAMJJASOND
Elevation:
3 - 120 meters
10 - 395 feet
General Habitats:
  • Coastal bluff scrub
  • Coastal scrub
Microhabitat Details: Maritime succulent scrub
Microhabitat:
Notes:
Introduced at several locations, including Cabrillo NM. Seriously threatened by habitat loss, habitat disturbance, development, trampling, genetic isolation, low recruitment, and genetic dilution from introduced plants. Previously threatened by horticultural collecting, but less so in recent years and non-native plants. See Rancho Santa Ana Botanic Garden Occasional Publications 14 (2014) by S.E. Vanderplank for conservation plan.
Threats:
Taxonomy:
Threat List Total: 9
Total EOs % of EOs
EOs with Threat Listed: 5 63 %
THREAT LIST:
Foot traffic/trampling 4 50%
Erosion/runoff 3 37%
Non-native plant impacts 2 25%
Other 2 25%
Road/trail construction/maint. 1 12%
Total Occurrences: 8
Element Occurrence Ranks:
A B C D X U
1 1 0 2 0 4
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 8
Presence:
Presumed Extant 8
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
Baja California (BA), California (CA)
California Counties and Islands: Name (Code)
San Diego (SDG)
Quads: Name (Quad Code)
Del Mar (3211782), Encinitas (3311713), Imperial Beach (3211751), Point Loma (3211762)
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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