Eastern Mojave Vegetation Coll. No. 2921, Festuca saximontana.  
 

 

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  Poaceae Festuca saximontana
Photographed 26 October 2023.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Poaceae

Festuca saximontana Rydb.  Rocky Mountain Fescue.

Magpie Gulch, Jefferson County, Colorado. Mouth of the canyon of Magpie Gulch, along an old road, about 115 m. west of the parcel boundary, 2.16 km. west northwest of the GNIS location of Golden. 39.7599N, 105.2398W. WGS 1984 Elev. 1809 m. Most likely a revegetation grass in an open grassland.

Collected by permit: Jefferson County Open Space, 2023, issued: Apr 10, 2023, to: Tom Schweich.

Tom Schweich, with Cindy Trujillo 2921. 22-May-2023

Collection No. 2921, 22 May 2023, characters observed: Perennial grass, 25 cm., cespitose; Stem, glabrous below inflorescence; Leaves, Sheath, 19-20 mm., open; Ligule, membranous, 1 mm., auricles, absent; Blade, 40-42 mm. × >1 mm. wide, involute [conduplicate?]; Inflorescence, 1 per culm, >leaves, panicle, 55 mm. × 8 mm. wide, branched 2×; Rachis, not extended beyond upper spikelet, scabrous; Spikelets, few (17±), 7 mm. × 2 mm. wide, 1 per node, pedicels 3 mm.; Compression, lateral; Glumes, lower, 4 mm., veins, 3, upper, 4.5 mm., ≤lowest floret, veins, 5, keeled, awns, 0; Florets, 3 per spikelet; Axis, extended beyond upper floret; Lemma, 4.5 mm., proximally glabrous, distally short wavy hairy, keel, glabrous; Palea, 3.5 mm., <lemma; Anthers, 1.3 mm.; Achene, brown.

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Date and time this page was prepared: 12/8/2023 3:47:55 PM