Achnatherum coronatum (Thurb.) Barkworth

  • Filed As

    Poaceae
    Achnatherum coronatum (Thurb.) Barkworth

  • Collector(s)

    T. S. Ross 7929 with Steve Boyd, 25 May 1994

  • Location

    United States of America. California. Los Angeles Co. Necktie Basin: Hanging basin ca 470-830m W of Warm Springs Mtn summit. These collections from ca 600-800m WSW of summit.

  • Specimen Notes

    Record databased by staff or volunteers in the Tri-Trophic Thematic Collections Network Symbiota Portal. Transferred to NYGB database on 17 Dec. 2015.

  • Identifiers

    NY Barcode: 1486714

    Occurrence ID: 5dd0984c-bb6e-4f13-8354-3307e45732fb

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  • Region

    North America

  • Country

    United States of America

  • State/Province

    California

  • County/Municipio

    Los Angeles Co.

  • Locality

    Necktie Basin: Hanging basin ca 470-830m W of Warm Springs Mtn summit. These collections from ca 600-800m WSW of summit.

  • Township, Range, Section

    T6N, R16W, [ ] "sections not demarcated"

  • Elevation

    Alt. 1061 - 1076 m. (3481 - 3530 ft.)

  • Coordinates

    34.5932, -118.585

  • Distribution

    Map all specimens of this taxon

BOTANICAL
01486714
RANCHO SANTA ANA BOTANIC GARDEN Flora of tlie Liebre Mountains,
Los Angeles County, California, U.S.A. Poaceae
Stipa coronata Thurber
[Achnalherum coronaiwn (Thurber) M.Barkworth]
NECKTIE BASIN: Hanging basin ca*470-830 m W of Wann Springs Mtn summit. These collections from ca 600-800111WSW of summit. Warm Springs Mtn 1.5' USGS Quadrangle; T6N R16W (sections not demarcated). Near 34°35'35.5"N 118°35'07.5"W. Elevation ca 3480-3530 feet.
More-or-less flat-bottomed basin of cobbly and gravelly sedimentary soil. Slopes recovering from bum of 4-5 years earlier, mostly chaparral elements on slopes. Of note are dead remains of Juniperus cali/ornica throughout the lower portions of the basin which have not survived the fire and do not appear to be regenerating. Basin heavily infested with annual, nonnative grasses which may have carried the fire and intensified its effects against the original juniper community.
Tufted perennial, locally uncommon on low slope at basin margin; apparently having resprouted from the top-burned tussock. Glumes ± 17 & 14 mm respectively; lemma ca 7-7.5 mm; callous ± 0.6 mm; hairs at apex of lemma to 4 mm long; awn segments (proximal to distal) 8-8.5,6-7, 14-16 mm respectively.
Timothy S. Ross 7929 Steve Boyd
25 May 1994