CNPS Inventory Plant Detail

Boechera tiehmii

Common Name:	Tiehm's rockcress
Family:	Brassicaceae
Synonyms:	Arabis tiehmii
Element Code:	PDBRA06280
Full Name:	Boechera tiehmii (Rollins) Al-Shehbaz
USDA PLANTS Symbol:

Biology
Lifeform: perennial herb Blooming Period: Jul-Aug Habitat: • Alpine boulder and rock field (granitic)

Rarity Status
California Rare Plant Rank: 1B.3 Rare or endangered in California and elsewhere .3: Not very endangered in California Federal Listing Status: Not Listed State Listing Status: Not Listed State Rank: S3 S3: Vulnerable. Global Rank: G3 G3: Vulnerable.

Occurrence Data from CDFW
California Natural Diversity Database

Total # of Known Element Occurrences: 9
Element Occurrence Ranks:

A B C D X U

9 0 0 0 0 0

Population Status:

Historic >20 yrs	Recent <=20 yrs
9	0

Presence:

Present Extant	Possibly Extirpated	Presumed Extirpated
9	0	0

Notes
Known in CA from approximately ten occurrences near Tioga Crest. On watch list in NV, where known from two occurrences. See Journal of the Arnold Arboretum 64:496 (1983) 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: 1988-01-01 Last Update: 2012-04-25

Location

Elevation: 2970 - 3590 meters

California Endemic: no

Other States: Nevada

California Counties and Islands: name (code)
Mono (MNO)

Quads: name (DWR code) USGS code
Mount Dana (453B) 3711982, Tioga Pass (454A) 3711983, Dunderberg Peak (471D) 3811913

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. This data should NOT be substituted for pre-project review or for on-site surveys.

Presumed Extant

Presumed Extirpated or Unknown

201

Links to Leading Resources of Taxon Information
USDA PLANTS Calflora Consortium of California Herbaria CalPhotos California Department of Fish and Wildlife: CNDDB Quick Viewer

Suggested Citation
California Native Plant Society, Rare Plant Program. . Inventory of Rare and Endangered Plants of California (online edition, v8-03). Website http://www.rareplants.cnps.org [accessed ].

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