Taxon Report
Penstemon albomarginatus Joneswhite-margined beardtongue |
 Michelle Cloud-Hughes 2010 |
Taxon Summary
Penstemon albomarginatus, commonly known as white-margined beardtongue, is a perennial herb in the Plantaginaceae that is found in California and elsewhere. It occurs within Desert dunes (stabilized), and Mojavean desert scrub (sandy), growing at elevations from 620 to 1065 meters. Penstemon albomarginatus is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.Classification
|
Scientific Name: |
Penstemon albomarginatus Jones |
|
Common Name: |
white-margined beardtongue |
| Family: | Plantaginaceae |
| Element Code: | PDSCR1L070 |
| USDA Plants Symbol: | PEAL3 |
|
Synonyms/Other Names: |
|
Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: Mar-May(Jun) | Mar-May(Jun) |
| Elevation: | 620-1065 (2035-3495) |
| General Habitats: | Desert dunes, Mojavean desert scrub |
| Microhabitat: | |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.1 |
| Global Rank: | G1 |
|
State Rank: |
S1 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S; SB_CalBG/RSABG |
|
CRPR Changes: |
|
Occurrence Data from the CNDDB
| Total Occurrences: | 28 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 1 |
| Fair (C) | 11 |
| Poor (D) | 7 |
| None (X) | 0 |
| Unknown (U) | 9 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| San Bernardino (SBD) | |
| Quads: Name (Quad Code) | |
| Cadiz Summit (3411554), Hector (3411674), Hidden Valley East (3411683), Lavic Lake (3411663), Ludlow (3411662), Morgans Well (3411652), Sleeping Beauty (3411673), Troy Lake (3411675) | |
Threat List Data from the CNDDB
| Threat List Total: | 10 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 24 | 86 % | |
| Non-native plant impacts | 21 | 75% |
| ORV activity | 20 | 71% |
| Development | 19 | 67% |
| Other | 10 | 35% |
| Erosion/runoff | 8 | 28% |
| Road/trail construction/maint. | 8 | 28% |
| Vandalism/dumping/litter | 2 | 7% |
| Recreational use (non-ORV) | 2 | 7% |
| Military operations | 1 | 3% |
| Mining | 1 | 3% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 22 November 2025].