SPIF

Rorippa curvisiliqua (Hook.) Bessey ex Britton

Lassen, Westwood East 7.5' USGS quad. In a seasonally wet puddle formed by a large landslide., 1789m

SPIF

Streptanthus tortuosus Kellogg

Trinity, Whisky Bill Peak 7.5' USGS quad. Growing on an exposed rocky slope. Growing with Eriogonum alpinum. 0% canopy cover., 1942m

SPIF

Arabidopsis thaliana (L.) Heynh.

Tehama, Finley Butte 7.5' USGS quad. Not native to California, naturalized. Judd Creek study site; ca. 1 air mile south of Lyman Springs., 1097m

SPIF

Arabis constancei Rollins

Plumas, Crescent Mills 7.5' USGS quad. Round Valley Reservoir, County Road 204 ca. 2 miles west from Round Valley (site); serpentine forested site with stunted Calocedrus decurrens overstory.

SPIF

Boechera platysperma (A. Gray) Al-Shehbaz

Siskiyou, Horse Peak 7.5' USGS quad. 1.2 air miles N of Masonic Rock and 1.64 air miles SE of Watakma Butte. Growing on the rocky volcanic reefs within the open understory of an Abies concolor, Pinus contorta, and Pinus jeffreyi forest with pumice fluff volcanic soil.

SPIF

Boechera rigidissima (Rollins) Al-Shehbaz

Trinity, Whisky Bill Peak 7.5' USGS quad. SE of Menzel Gulch and ca. 2.2 air miles S of the Bonanza King Lookout. Growing on the crevices and flat ledges of large rock outcrops on very steep ground. Surrounding forest is a dry pine-oak forest. S aspect, 0% canopy, very steep. ID'ed by Dr. Dean Taylor. (ID'ed as old name: Arabis rigidissima var. rigidissima).

SPIF

Boechera sparsiflora (Nutt.) Dorn

Shasta, Goose Gap 7.5' USGS quad. Along the eastern slope of Curl Ridge, ca 2.1 air miles S of Signal Butte. Growing in the crevices of a bouldery limestone road cut bank with Toxicodendron diversilobum in a mixed conifer forest. Flowers a bright lighter purple color when fresh compared to the darker purple of the dried specimen. S aspect. ID'ed by Jessica O'Brien and confirmed by Dr. Dean Wm. Taylor., 816m

SPIF

Cardamine bellidifolia  L.  var. pachyphylla  Coville & Leiberg

Siskiyou, Mt. Shasta 7.5' USGS quad. Found growing in rocks on drainage slope with Abies magnifica and Carex. 0% canopy. Steep slope. Green glabrous leaves., 2322m

SPIF

Cardamine breweri S. Watson

Placer, Martis Peak 7.5' USGS quad. NE of Martis Peak, near the Nevada State Line near Juniper Creek. Growing along the banks of the creek as it cascades through an alder thicket in a meadow. Very cobbly rocks and mossy. ID'ed by Dr. Dean Taylor.

SPIF

Cardamine breweri var. breweri S. Watson

Trinity, Tangle Blue Lake 7.5' USGS quad., 1280m

SPIF

Cardamine californica var. integrifolia (Nutt.) Rollins

Trinity, Tangle Blue Lake 7.5' USGS quad., 1280m

SPIF

Cardamine nuttallii Greene

Trinity, Growing in a recently logged and burned mixed conifer forest with Erythronium citrinum var. roderickii. Slope 341 degrees.

SPIF

Cardamine oligosperma Nutt.

Shasta, Cottonwood 7.5' USGS quad. Sacramento River bank, at the Sierra Pacific Industries' Anderson Office., 128m

SPIF

Cardamine pachystigma (S. Watson) Rollins

Humboldt, Maple Creek 7.5' USGS quad. Snow Camp Rd. to High Prairie Rd, the N under power line., 610m

SPIF

Draba aureola S. Watson

Shasta, Lassen Peak 7.5' USGS quad. Lassen Peak near summit along trail. Steep scree on lapilli and pumice with Sitanion hystrix dominant., 91m

SPIF

Idahoa scapigera (Hook.) A. Nelson & J.F. Macbr.

Tuolumne, Twain Harte 7.5' USGS quad. Grant Ridge, about 3 air mile NW Lyons Reservoir. Near intersection of Forest Road 3N63 and 3N44Y. On volcanic ridge with Lomatium stebbinsii, Lupinus bicolor, Erodium cicutarium. Reported site of Allium tribracteatum., 1372m

SPIF

Lepidium campestre (L.) W.T. Aiton

Tehama, Finley Butte 7.5' USGS quad. Located on the north facing bank/slope of Judd Creek.

SPIF

Lepidium campestre (L.) W.T. Aiton

Lassen, Westwood East 7.5' USGS quad. Growing along Duffy creek in a disturbed meadow due to cattle crossing the creek. Mixed conifer habitat. No coordinates recorded.

SPIF

Nasturtium officinale W.T. Aiton

Shasta, Cottonwood 7.5' USGS quad. Previously known as: Rorippa nasturtium-aquaticum. Sacramento River bank, at the Sierra Pacific Industries' Anderson Office., 128m

SPIF

Nasturtium officinale W.T. Aiton

Lassen, Westwood East 7.5' USGS quad. Growing along the edges of the North side of Duffy Creek under Populus sp. No coordinates recorded., 1384m

SPIF

Noccaea fendleri subsp. glauca (A. Nelson) Al-Shehbaz & M. Koch

Trinity, Covington Mill 7.5' USGS quad. 18'acc. Growing near road edge and in 5 year old plantation on ultramafic soil on North slope. Flat. Associated with Ceanothus lemmonii, Festuca sp, Pseudotsuga menziesii. 0% canopy, white flowers. Identified by RF.

SPIF

Phoenicaulis cheiranthoides Nutt.

Lassen, Bullard Lake 7.5' USGS quad. Approximately at listed coordinates. Growing in rocky sagebrush with clay soil. Growing among Juncus occidentalis, Arctostaphylos tracyi, and Balsamorhiza hookeri. 0-10% canopy cover. Eastside pine forest surrounding., 1841m

SPIF

Rorippa curvisiliqua (Hook.) Bessey ex Britton

Lassen, Bullard Lake 7.5' USGS quad. Growing in dried out small pond amongst volcanic rocks. Tap-rooted, glabrous seed pods, bright yellow flowers., 1835m

SPIF

Rorippa palustris var. occidentalis (S. Watson) Rollins

Shasta, Cottonwood 7.5' USGS quad. Sacramento River bank, at the Sierra Pacific Industries' Anderson Office., 128m

SPIF

Smelowskia ovalis var. congesta Rollins

Shasta, Lassen Peak 7.5' USGS quad. Lassen Peak, near summit along trail. Steep scree on lapilli and pumice with Sitanion hystrix dominant., 91m

SPIF

Streptanthus barbatus S. Watson

Trinity, Tangle Blue Lake 7.5' USGS quad. Sepals purple. Hwy 3, e/ Co. Rd. 133, n/39N26, nw 38N80. On serpentine slopes, road cut-banks.

SPIF

Streptanthus barbatus S. Watson

Trinity, Mumbo Basin 7.5' USGS quad. ~1 air mile SE of Ramshorn Summit. Growing within a mixed conifer forest with Eriogonum congdonii on rocky ultramafic slope. With Calocedrus decurrens, Quercus vaccinifolia, and Pseudotsuga menziesii surrounding. 0% canopy, fairly flat, SE aspect.

SPIF

Streptanthus tortuosus Kellogg

Shasta, Damnation Peak 7.5' USGS quad. Mosquito ridge area. Rocky outcrop in Quercus chrysolepis, Pinus sabiniana, Pseudotsuga menziesii forest with Eriogonum ursinus var. erubescens, Penstemon azureus, Boechera. 0% canopy, metavolcanic or metasedimentary surrounded by loose shale.

SPIF

Streptanthus tortuosus Kellogg

Shasta, Hanland Peak 7.5' USGS quad. Located about 0.72 air mile due west of Bucks Peak, about 2.25 air miles ENE of Lakehead. Steep rocky cliff outcrop within an oak woodland. Found growing with Eriogonum ursinum var. erubescens. Collected from within a region of about 75 feet radius centered on the listed GPS point. ID’ed by Dr. Dean Taylor., 747m

SPIF

Thlaspi montanum var. montanum L.

Trinity, Covington Mill 7.5' USGS quad. Section Unknown. Collected in a mixed conifer forest most likely on or near ultramafic soil. Date of collection took place between April 15-17, 2009. Identification by Dr. Taylor. New name: Noccaea fendleri ssp. glauca

SPIF

Thysanocarpus curvipes Hook.

Tehama, Dales 7.5' USGS quad. Near the junction of Supan Gulch and Hwy 36 East. About 5 miles east of Hog Lake. Growing on recently burned and cleared hillside by the CDC on north facing bank of Hwy 36. Growing with Quercus douglasii, Toxicodendron diversilobum, Ranunculus occidentalis, Erythronium multiscapideum, Fritillaria affinis, Pentagramma triangularis, and Collinsia sparsiflora., 185m