Boechera rubicundula Common Name: Mount Day rockcress Family: Brassicaceae Synonyms: Element Code: PDBRA40100 Full Name: Boechera rubicundula (Jeps.) Windham & Al-Shehbaz USDA PLANTS Symbol: Biology Lifeform: perennial herb Blooming Period: April - May Habitat: Rocky slopes. • Chaparral

Rarity Status Rare Plant Rank: 1B.1 Rare, threatened, or endangered in California and elsewhere .1: Seriously endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S1 S1: Critically Imperiled. Global Rank: G1 G1: Critically Imperiled. Occurrence Data from DFG California Natural Diversity Database Total # of Known Element Occurrences: 1 Element Occurrence Ranks: A B C D X U 0 0 0 0 0 1 Population Status: Historic >20 yrs Recent <=20 yrs 1 0 Presence: Present Extant Possibly Extirpated Extirpated 1 0 0 Notes Known from only one occurrence on Mt. Day. Similar to B. arcuata and B. breweri var. breweri. See Fl. Calif. 2:69 (1936) for original description and Harvard Papers in Botany 11(2):257-274 (2007) for taxonomic treatment. To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page. Date Added: 2011-04-27 Last Update: 2011-07-19

Location Elevation: California Endemic: yes States: California California Counties and Islands:   name (code) Santa Clara (SCL) Quads:   name (DWR code) USGS code Mt. Day (426B) 37121D6 Notes: Definitions of codes preceding a county and/or quad: * Presumed extirpated ? Uncertain about distribution or identity ?* Uncertain about distribution, but presumed extirpated if once present (?) Occurrence confirmed, but possibly extirpated Species may be present in other areas where conditions are favorable.

Presumed Extant Presumed Extirpated or Unknown 3559

Links to Leading Resources of Taxon Information USDA PLANTS Calflora CalPhotos Consortium of California Herbaria California Department of Fish and Wildlife: CNDDB Quick Viewer Suggested Citation California Native Plant Society (CNPS). Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society. Sacramento, CA. Accessed on . -121.625,37.375

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