Eastern Mojave Vegetation Coll. No. 3539, Ericameria nauseosa var. oreophila.  
 

 

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If you have a question or a comment about this photograph you may write to me at: tomas@schweich.com I sometimes post interesting questions in my FAQ, but I never disclose your full name or address. 		  Asteraceae, Ericameria nauseosa oreophila
Photographed 20 October 2025.

Plants of the Great Basin
California and Nevada
Asteraceae

Ericameria nauseosa (Pall. ex Pursh) G. I. Nesom & G. I. Baird var. oreophila (A.Nelson) G.L.Nesom & G.I.Baird.  Great Basin Rabbitbrush.

McCarty Butte, Lake County, Oregon. Roadside beside Oregon Highway 31, 4.7 km. east of McCarty Butte, the nearest GNIS-recognized geographical feature, 33 miles southeast of La Pine, Oregon. 43.32194°N, 121.17361°W. WGS 1984 Elev. 1379 m.

Tom Schweich 3539. 30-Sep-2025

Coll. No. 3539, 30 September 2025, characters observed: Perennial shrub, 40 cm.; Stem, proximal, dull white, tomentose, resinous, almost to the involucres; Leaves, cauline, alternate, sessile, blade 20-37 mm. × (barely) 1 mm. wide, reduced distally, sulcate (not flat), linear, entire, tomentose; Heads, discoid; Involucre, 10 mm. × 4 mm. wide, obconic, glabrous; Phyllaries, unequal, 4±-series, outer << rest of involucre, inner 7-9 mm. × 1.8-1.2 mm. wide, glabrous, mid-vein, ±raised, visible along length, margins, flat, scarious, tips, acute; Receptacle, epaleate; Flowers of 1 kind; Disk flowers, #5±, tube 8-9 mm. + lobes 1 mm., yellow, throat expanding gradually, few short hairs proximally, otherwise glabrous; Pappus, many, well-developed bristles, 7 mm., ±equal; Anther, base rounded; Style, filiform, 2-branched, brush-like appendages, style 8.63 mm. + stigma 1.75 mm. + appendage 1.3 mm. (n=4); Stigma, > style appendages; Cypsela, 4-6 mm. × 0.6 mm. wide, compressed front-to-back, brown, hairy. Corolla lobes short for var. oreophila, but otherwise that seems to be the best fit.

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Date and time this page was prepared: 4/4/2026 8:04:59 PM