Eastern Mojave Vegetation Coll. No. 3074, Phalaris arundinacea.  
 

 

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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. 		  Poaceae Phalaris arundinacea
Photographed 30 December 2023.

Plants of the Douglas Mountain Study Area
Jefferson County Open Space, Colorado, USA
Poaceae

Phalaris arundinacea L.  Reed Canarygrass.

Guy Gulch, Jefferson County, Colorado. In still water beside the creek, 94 m. west across County Road 70 from the Centennial Ranch house, 2.42 km. south of Mount Tom, 12.3 km. west northwest of the GNIS location of Golden. 39.7948°N, 105.3551°W. WGS 1984 Elev. 2346 m. Also nearby in still water: Montia chamissoi.

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

Tom Schweich, with Cindy Trujillo and John Vickery 3074. 12-Jul-2023

Coll. No. 3074, 12 Jul 2023, characters observed: Perennial grass, to 150 cm., still water beside creek, rhizomatous; Leaves, sheath, open, 140 mm., ligule, membraneous, 5 mm., blade, 160 mm. ×8 mm. wide, flat; Inflorescence, panicle; Spikelets, 5-6 mm.; Florets, 1, though subtended on opposite sides by 2 small hairy bits of tissue that could be sterile florets; Glumes, lower, 5 mm., upper, 6 mm., wingless, keeled, barely scabrous; Lemma, 4 mm., awns absent; Palea, 3 mm.

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Date and time this page was prepared: 12/8/2024 2:16:26 PM