Identificaciones de lcunningham

Bouteloua barbata abundant in sidewalk cracks along Granite Avenue NW near Old Town, Albuquerque, Bernalillo County, New Mexico. This is one of several native annual Bouteloua species that are highly abundant in disturbance prone settings, such as sidewalk cracks. Panicles of relatively few side branches 1-3 cm long and comprising 20-55 widely divergent spikelets, arranged in secund fashion, are distinctive of this species. Florets are the unit of disarticulation.

Bouteloua aristidoides abundant in sidewalk cracks along Granite Avenue NW near Old Town, Albuquerque, Bernalillo County, New Mexico. This is one of several native annual Bouteloua species that are highly abundant in disturbance prone settings, such as sidewalk cracks. Panicles of narrow side branches 1-2 cm long and comprising 1-4 closely appressed spikelets, arranged in secund fashion, are distinctive of this species. The side branches are the unit of disarticulation.

In conifer forest along the Lyons Creek Trail, approx. 0.9 mile east of the trailhead, Eldorado National Forest, El Dorado County, California, elev. approx. 6820 feet. The surrounding forest burned 3 years previously in the August 2021 Caldor Fire.

Blue wildrye produces mostly 4 glumes (2 spikelets) per node and these have a palmate arrangement rather than two pairs of opposing glumes. The leafy stems with broad leaf blades are characteristic of this wildrye.

For additional photos and species diagnosis, see https://www.flickr.com/photos/plant_diversity/albums/72157686003454940