Dieteria asteroides Torr.  
Family: Asteraceae
fall tansyaster,  more...
[Aster amplifolius (Woot. & Standl.) Kittell,  more]
Dieteria asteroides image
Max Licher  
Biennials or short-lived perennials. Stems, branches, and peduncles usually hairy, puberulent, or canescent, often sparsely stipitate-glandular (glabrous or densely stipitate-glandular in var. glandulosa). Leaf blades lanceolate to oblanceolate, mid 20-100 × (2-)6-20 mm, margins entire to irregularly serrate, faces puberulent or canescent, often sparsely short-stipitate-glandular (densely, stiffly long-stipitate-glandular in var. glandulosa); distal bases cordate to auriculate, clasping. Involucres broadly turbinate to hemispheric. Phyllaries in 5-12 series, spreading to reflexed, apices acute to long-acuminate, 1-6 mm, herbaceous, faces puberulent or canescent throughout (on both indurate bases and foliaceous apices), sometimes sparsely stipitate-glandular (moderately to densely stipitate-glandular in var. glandulosa). Receptacles 3.5-7 mm diam. Ray florets pistillate, fertile; laminae white to purple, 10-20 × 0.8-1.5 mm. Disc corollas 5-8 mm. Cypselae glabrous or moderately appressed-hairy.
Plant: Biennial, perennial herb < 10 dm, generally canescent-puberulent and nonglandular; stems 1-several from base, generally branched above and ± bushy Leaves: simple, alternate, generally 3-10 cm, generally 5-25 mm wide, lanceolate to oblanceolate, irregularly dentate to minutely serrate or subentire; lower tapered; upper clasping INFLORESCENCE: primary inflorescence a head, each resembling a flower; heads radiate; phyllaries generally in 5-12 series, tips short-triangular to elongate, acuminate, spreading to bent backward, puberulent Flowers: Ray flowers many; corollas blue-purple; ligules 1-2 cm; Disk flowers many; corollas 5.5-8 mm, yellow; style tips triangular to linear, acute 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 Misc: Chaparral, woodland, scrub; 800-2400 m. References: J.C. Hickman, ed. The Jepson Manual.W.D. McDougal. Seed plants of Northern Arizona. USDA website. (plants.usda.gov) ASU specimens.
Dieteria asteroides image
Max Licher  
Dieteria asteroides image
Max Licher  
Dieteria asteroides image
Max Licher  
Dieteria asteroides image
Liz Makings  
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