Taxon Report
Penstemon sudans JonesSusanville beardtongue |
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Classification
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Scientific Name: |
Penstemon sudans Jones |
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Common Name: |
Susanville beardtongue |
| Family: | Plantaginaceae |
| Element Code: | PDSCR1L620 |
| USDA Plants Symbol: | PESU10 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: Jun-Jul(Aug-Sep) | Jun-Jul(Aug-Sep) |
| Elevation: | 1200-2425 (3935-7955) |
| General Habitats: | Great Basin scrub, Lower montane coniferous forest, Pinyon and juniper woodland |
| Microhabitat: | Roadsides (sometimes), Rocky, Volcanic |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 4.3 |
| Global Rank: | G4 |
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State Rank: |
S4 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S; SB_UCSC; USFS_S |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 152 |
| Element Occurrence Ranks: | |
| Excellent (A) | 19 |
| Good (B) | 75 |
| Fair (C) | 26 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 32 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| Lassen (LAS), Modoc (MOD), Plumas (PLU), Sierra (SIE) | |
| Quads: Name (Quad Code) | |
| Al Shinn Canyon (4012061), Antelope Valley (3912063), Buckhorn Lake (4012081), Cold Spring Mtn. (4112013), Diamond Mtn. (4012036), Dodge Reservoir (4012082), Eagle Peak (4112032), Emerson Peak (4112022), Five Springs (4012052), Fredonyer Pass (4012037), Gallatin Peak (4012056), Greenville (4012028), Jess Valley (4112023), Johnstonville (4012045), Karlo (4012053), Kettle Rock (4012026), Litchfield (4012044), Little Juniper Reservoir (4112034), Little Mud Flat (4012042), Moonlight Peak (4012027), Observation Peak (4012072), Pegleg Mtn. (4012048), Petes Valley (4012054), Pikes Point (4012057), Roop Mountain (4012047), Shaffer Mtn. (4012043), Shinn Mtn. (4012062), Snake Lake (4112021), Snowstorm Mtn. (4012063), Soup Creek (4112033), Susanville (4012046), Termo (4012074), Tule Mountain (4112024), Tunnison Mtn. (4012055), West of Snowstorm Mtn. (4012064), Westwood East (4012038) | |
Threat List Data from the CNDDB
| Threat List Total: | 13 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 73 | 48 % | |
| Logging | 44 | 28% |
| Road/trail construction/maint. | 21 | 13% |
| Non-native plant impacts | 9 | 5% |
| Wood cutting or brush clearing | 6 | 3% |
| Other | 4 | 2% |
| ORV activity | 3 | 1% |
| Grazing | 3 | 1% |
| Erosion/runoff | 3 | 1% |
| Development | 2 | 1% |
| Foot traffic/trampling | 1 | 0% |
| Altered flood/tidal/hydrologic regime | 1 | 0% |
| Biocides | 1 | 0% |
| Recreational use (non-ORV) | 1 | 0% |
Notes
| Changed from 1B.2 to 4.3 on 2020-03-02. More common than originally known and reported to respond well to certain types of disturbance. Potentially threatened by logging and road construction and maintenance. Possibly threatened by development, grazing, erosion, non-native plants, and vehicles. See Contributions to Western Botany 8:37 (1898) for original description. |
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Threats: |
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Taxonomy: |
Selected References
| CRPR List Change on 2020-03-02 |
| USFS Potential Species of Conservation Concern Profile |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 7 January 2025].