Taxon Report
Arctomecon merriamii Cov.white bear poppy |
 © 2010 James M. Andre |
Classification
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Scientific Name: |
Arctomecon merriamii Cov. |
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Common Name: |
white bear poppy |
| Family: | Papaveraceae |
| Element Code: | PDPAP02030 |
| USDA Plants Symbol: | ARME2 |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: (Mar)Apr-May | (Mar)Apr-May |
| Elevation: | 490-1800 (1610-5905) |
| General Habitats: | Chenopod scrub, Mojavean desert scrub |
| Microhabitat: | Rocky |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 2B.2 |
| Global Rank: | G3 |
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State Rank: |
S3 |
| State List: | None |
| Fed List: | None |
| Other Status: | SB_CalBG/RSABG |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 47 |
| Element Occurrence Ranks: | |
| Excellent (A) | 3 |
| Good (B) | 6 |
| Fair (C) | 4 |
| Poor (D) | 1 |
| None (X) | 0 |
| Unknown (U) | 33 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| Inyo (INY), San Bernardino (SBD) | |
| Quads: Name (Quad Code) | |
| Chloride City (3611668), Clark Mtn. (3511555), Daylight Pass (3611678), Dry Mountain (3611785), East of Echo Canyon (3611645), Echo Canyon (3611646), Fall Canyon (3611772), Grotto Canyon (3611751), Ivanpah Lake (3511554), Mesquite Lake (3511565), North of Baker (3511641), North of Tecopa Pass (3511681), Resting Spring (3511682), Ryan (3611636), State Line Pass (3511564), Stewart Valley (3611622), Stovepipe Wells (3611752), Teakettle Junction (3611775), Tecopa (3511672), Tecopa Pass (3511671), Thimble Peak (3611771), Tin Mountain (3611784), Turquoise Mtn. (3511548), Twelvemile Spring (3611612), Ubehebe Crater (3711714), Ubehebe Peak (3611765), Wahguyhe Peak (3611781), White Top Mtn. (3611774), Wildrose Peak (3611731) | |
Threat List Data from the CNDDB
| Threat List Total: | 10 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 10 | 21 % | |
| Foot traffic/trampling | 4 | 8% |
| Mining | 3 | 6% |
| Non-native animal impacts | 2 | 4% |
| ORV activity | 2 | 4% |
| Erosion/runoff | 2 | 4% |
| Road/trail construction/maint. | 2 | 4% |
| Other | 1 | 2% |
| Non-native plant impacts | 1 | 2% |
| Grazing | 1 | 2% |
| Military operations | 1 | 2% |
Notes
| Historical occurrences need field surveys; new occurrences found recently. Threatened by mining and vehicles. On watch list in NV. See Proceedings of the Biological Society of Washington 7:65-80 (1892) for original description, Mentzelia 3:2-5 (1977) for species account, Rhodora 95:209-212 (1993) for taxonomic treatment, and Madroño 44(2):151-169 (1997) for ecological information. |
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Threats: |
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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 6 January 2025].