The Mobius Arch in the Alabama Hills -- This rock arch perfectly frames Mount Whitney in the center opening.
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Noxious Weeds


Common crupina (Crupina vulgaris Cass.) 

Sunflower family (Asteraceae) 

Photo of Common Crupina 

GROWTH HABIT:Canada thistle is an erect perennial up to 4 ft. (1.2 m) tall.
LEAVES: The leaves vary from light to dark green, oblong or lance shaped, deeply cut, spiny toothed margins (some may be smooth); Slightly hairy below. Tremendous leaf variability.
FLOWERS:The flower heads consist of small bristly clusters, 3/8" to 5/8" (1-2 cm) in diameter, light lavender to deep rose purple. Flowers are male or female.
SEEDS:Seeds are smooth, light to dark brown, tipped by a cupped conical point, approximately 1/8" (2 mm) long.
OTHER:Canada thistle is an introduced Eurasian species. It inhabits well-drained, light-textured soils along roadsides, in wildlands, grain fields and pastures. It becomes established most easily in disturbed soils and is very difficult to control once it becomes established.
KEY CHARACTERS:
  • Flowers consist of small bristly clusters
  • Seeds are tipped by a cupped conical point
DISTRIBUTION:Throughout pastures in the Owens Valley and in Bridgeport, Walker and Coleville - Inyo/Mono Counties