Sisyrinchium hitchcockii Common Name: Hitchcock's blue-eyed grass Family: Iridaceae Synonyms: Element Code: PMIRI0D0S0 Full Name: Sisyrinchium hitchcockii D.M. Hend. USDA PLANTS Symbol: SIHI4 Biology Lifeform: perennial rhizomatous herb Blooming Period: June Habitat:   • Cismontane woodland (openings) • Valley and foothill grassland

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: G2 G2: 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 in CA from only one occurrence near Cape Ridge. Needs field surveys. Threatened in OR. Sympatric with S. bellum. Distinguishing characters include lack of yellow tepal bases, extensive rhizomes and larger flowers. Not in The Jepson Manual. See Brittonia 28:170 (1976) for original description. To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page. Date Added: 2004-01-01 Last Update: 2010-03-15

Location Elevation: California Endemic: no States: California, Oregon California Counties and Islands:   name (code) Humboldt (HUM) Quads:   name (DWR code) USGS code Capetown (637A) 40124D3 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 9

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 . -124.25,40.375

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