Eastern Mojave Vegetation Coll. No. 1947, Festuca idahoensis  
 

 

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  Poaceae Festuca idahoensis
Photographed 22 December 2018.

Coll. No. 1947, 15 June 2018, characters observed: Perennial grass, clumped, not rhizomatous; Leaves, Sheath, 130 mm., open, glabrous; Ligule, membranous, 0.5 mm., auricles, minimal; Blade, proximal, 200 mm., distal, 50-60 mm., revolute, scabrous inside; Inflorescence, 1 per culm, >leaves, somewhat dispersed contracted panicle, 100 mm. × 9 mm. wide, spikelets, many; Rachis, not extended, scabrous; Spikelets, many, similar, 1 per node, pedicels, 1 mm., 2-many flowered, 8-9 mm. × 3 mm. wide; Compression, unremarkable; Disarticulation, above the glumes, florets falling as a unit; Glumes, lower, 3.2 mm., veins, #1, upper, 4.0 mm., <lowest floret, veins, #3, ±parallel, awns, #0; Florets, 5 per spikelet; Lemma, 4.0-4.5 mm., >glumes, ovate, membranous, rolled, glabrous, distally pubescent, tan veins, #5, tip, entire, awns, #1, 0.7-2.7 mm., straight, attached end; Palea, 4.5 mm., ≥lemma, membranous, margin and keels scabrous, tip, bifid; Anthers, few found, 2.2-2.5 mm.; Grain, 2.2 mm., green. One of several fescues found in this parcel, none of which are native to Golden. These appear to be robust cultivars that were used in a revegetation project. Compare to other collections from the same revegetation project that have been determined F. saximontana, such as my Coll. Nos. 1667, 1850, and 1853.

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Date and time this page was prepared: 10/20/2019 10:09:58 AM