Taxon Report
Polemonium chartaceum MasonMason's sky pilot |
|
Taxon Summary
Polemonium chartaceum, commonly known as Mason's sky pilot, is a perennial herb in the Polemoniaceae that is found in California and elsewhere. It occurs within Alpine boulder and rock field, and Subalpine coniferous forest, growing at elevations from 3290 to 4270 meters. Polemonium chartaceum is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.Classification
|
Scientific Name: |
Polemonium chartaceum Mason |
|
Common Name: |
Mason's sky pilot |
| Family: | Polemoniaceae |
| Element Code: | PDPLM0E0T0 |
| USDA Plants Symbol: | POCH3 |
|
Synonyms/Other Names: |
|
Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: Jun-Aug | Jun-Aug |
| Elevation: | 3290-4270 (10795-14010) |
| General Habitats: | Alpine boulder and rock field, Subalpine coniferous forest |
| Microhabitat: | Granitic, Rocky, Serpentine, Volcanic (sometimes) |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.3 |
| Global Rank: | G2 |
|
State Rank: |
S2 |
| State List: | None |
| Fed List: | None |
| Other Status: | SB_CalBG/RSABG; USFS_S |
|
CRPR Changes: |
|
Occurrence Data from the CNDDB
| Total Occurrences: | 12 |
| Element Occurrence Ranks: | |
| Excellent (A) | 3 |
| Good (B) | 2 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 7 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| Mono (MNO) | |
| Quads: Name (Quad Code) | |
| Boundary Peak (3711873), Juniper Mtn. (3711862), Mt. Patterson (3811943), White Mtn. Peak (3711863) | |
Threat List Data from the CNDDB
| Threat List Total: | 3 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 2 | 17 % | |
| ORV activity | 1 | 8% |
| Other | 1 | 8% |
| Road/trail construction/maint. | 1 | 8% |
Notes
| On watch list in NV. Formerly included plants from the Klamath Ranges, which are now recognized as P. eddyense. Possibly related to both P. eximium and P. elegans. See A Manual of the Flowering Plants of California, p. 783 (1925) by W.L. Jepson for original description, and Madroño 60(3):243-248 (2013) for revised circumscription. |
|
Threats: |
|
Taxonomy: |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 21 November 2025].