Monday, November 14, 2016

Machaeranthera canescens (Hoary Aster)

7/8/16 Virginia Lakes Road, Toiyabe National Forest, Eastern Sierra, Mono County, CA

 7/8/16 Dunderberg Meadow Road from Virginia Lake Road, Toiyabe National Forest,
Eastern Sierra, Mono County, CA

7/8/16 Dunderberg Meadow Road


COMMON NAME: Hoary Aster

SPECIES: Machaeranthera canescens 

FAMILY: Asteraceae (Sunflower Family)

LIFE LIST DATE: 7/8/2016

LOCATION: Virginia Lakes Road, Toiyabe National Forest, Eastern Sierra, Mono County, CA


Treatment from The Jepson Manual (1993):

Annual to perennial herb < 12 dm, generally canescent-puberulent and often glandular

Stems 1–several from base, generally branched above and ± bushy

Leaves generally 3–10 cm, generally 2–6 mm wide, linear to obovate, subentire to dentate or minutely serrate; lower tapered; upper sometimes clasping

Inflorescence: heads radiate; phyllaries generally in 3–10 series, tips short-triangular to elongate, acuminate, spreading to bent backward, generally ± glandular or glabrous

Ray flowers many (0 in var.  shastensis ); corollas blue-purple; ligules 1–2 cm

Disk flowers many; corollas 5.5–8 mm

Fruit 2.5–3.5 mm, narrowly obovate, weakly curved and ± flattened with 5–7 ribs on each face, glabrous or ± silky; pappus 6–8 mm

Ecology: Common. Many habitats

Elevation: 300–3400 m.  

Bioregional distribution: Klamath Ranges, Cascade Range, Sierra Nevada, Transverse Ranges, Peninsular Ranges, Great Basin Floristic Province, Mojave Desert 

Distribution outside California: w N.America

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