Eastern Mojave Vegetation Coll. No. 3250, Carex rossii.  
 

 

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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. 		  Cyperaceae Carex rossii
Photographed 18 June 2024.

Plants of Jefferson County Open Space
Jefferson County, Colorado
Cyperaceae

Carex rossii Boott.  Ross Sedge.

Coal Creek Canyon Study Area, Lacey Parcel, Jefferson County, Colorado. On a terrace, right bank of the second creek on the south side of Coal Creek Canyon, the first being that of Blue Mountain Estates, 565 m. west southwest of Coal Creek Canyon Fire Department Station 3. 39.87211°N, 105.28411°W. WGS 1984 Elev. 2108 m. Open Douglas fir forest with little understory, and that of Physocarpus monogynus, with a large patch of a Veronica, c.f. V. biloba. Smut-infected(?).

Collected by permit: Jefferson County Open Space, 2024, issued: Mar 6, 2024, to: Tom Schweich.

Tom Schweich 3250. 10-Jun-2024

Coll. No. 3250, 10 June 2024, characters observed: Perennial sedge, cespitose, to 30 cm.; Leaves, 0.7 mm. wide, green, sheaths margins white-hyaline; Inflorescence, 30 mm. × 5 mm. wide, 3-5 spikes; Spikes, basal present, terminal staminate, lateral, pistillate, 2-4; Bracts, proximal 20 mm., ±= inflorescence, leaf-like; Pistillate scales, 3 mm., >perigynia, green mid-vein, brown laterally, hyaline margin, awn 0; Perigynia, 2-4 per pistillate spike, 2.7 mm. × 1.7 mm. wide, wingless, pubescent, beak 0.7-1.3 mm., bi-dentate; Achene, spherical, 1.5 mm. × 1.5 mm. wide, black, smut-infested?; Stigma, #3; Anthers, not seen.

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Date and time this page was prepared: 8/26/2024 3:12:50 PM