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Symphyotrichum adnatum

Symphyotrichum adnatum (Nutt.) G.L. Nesom  
Family: Asteraceae
Scale-Leaf American-Aster
Symphyotrichum adnatum image
University of Florida Herbarium
  • FNA
  • Resources
Luc Brouillet, John C. Semple, Geraldine A. Allen, Kenton L. Chambers, Scott D. Sundberg+ in Flora of North America (vol. 20)
Perennials, 30-120 cm, cespitose; with herbaceous or thick, woody, sometimes cormoid caudices. Stems 5+, erect to scandent-sprawling (brown, branched from middle), moderately to densely finely hairy. Leaves (yellowish green) thick, firm, margins entire; basal early deciduous, sessile or subpetiolate, blades (3-nerved) oblanceolate to obovate, 10-43 × 7-15 mm, bases cuneate, margins scabrous, apices acute to obtuse , faces sparsely finely scabrous; proximal cauline sessile, blades narrowly obovate to oblanceolate, 20-35 × 5-13 mm, bases auriculate-clasping, margins finely scabrous, apices acute to obtuse, faces finely scabrous, shiny; distal sessile, blades lanceolate to linear, 3-10 × 1-4 mm, gradually reduced to bracts distally, bases subclasping and adnate to stem for 1 /2 + length, apices narrowly acute, white-spinulose, faces finely scabrous, viscid, minutely stipitate-glandular. Heads in ± open, paniculiform arrays, branches initially patent then ascending or divaricate. Peduncles densely short-strigose, glandular, bracts linear, adnate, densely short-strigose. Involucres campanulate, 4-6.5 mm. Phyllaries in 4-5 series, oblong to oblanceolate, strongly unequal, bases (tan) ± indurate, margins hyaline, finely scabrous, green zones lenticular, in distal 1 / 4 - 2 / 5 , apices obtuse, mucronate to finely subspinulose, faces scabrellous-puberulent, stipitate-glandular. Ray florets 10-20; corollas light to dark lavender, laminae 5-8 × 0.5-1.5 mm. Disc florets 12-25; corollas yellow, 3.7-7 mm, throats narrowly funnelform, lobes triangular, 0.4-0.8 mm. Cypselae tan to brown, obovoid, not compressed, 2-2.5 mm, 6-10-nerved (faint), faces sparsely strigose; pappi tan, 3.75-8 mm. 2n = 20.

Flowering Oct-Dec. Sandy, clayey soils, sandhills, oak-pine scrub, open pine flatwoods, roadsides; 0-100+ m; Ala., Fla., Ga., La., Miss.
Symphyotrichum adnatum
Open Interactive Map
Symphyotrichum adnatum image
University of Florida Herbarium
Symphyotrichum adnatum image
University of Florida Herbarium
Symphyotrichum adnatum image
University of Florida Herbarium
Symphyotrichum adnatum image
University of Florida Herbarium
Symphyotrichum adnatum image
University of Florida Herbarium
Symphyotrichum adnatum image
University of Florida Herbarium
Symphyotrichum adnatum image
University of Florida Herbarium
Symphyotrichum adnatum image
University of Florida Herbarium
Symphyotrichum adnatum image
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University of Florida Herbarium
Symphyotrichum adnatum image
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University of Florida Herbarium
Symphyotrichum adnatum image
University of Florida Herbarium
Symphyotrichum adnatum image
University of Florida Herbarium
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University of Florida Herbarium
Symphyotrichum adnatum image
Symphyotrichum adnatum image
University of Florida Herbarium
Symphyotrichum adnatum image
Symphyotrichum adnatum image
University of Florida Herbarium
Symphyotrichum adnatum image
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University of Florida Herbarium
Symphyotrichum adnatum image
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University of Florida Herbarium
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University of Florida Herbarium
Symphyotrichum adnatum image
University of Florida Herbarium
Symphyotrichum adnatum image
University of Florida Herbarium
Symphyotrichum adnatum image
Symphyotrichum adnatum image
University of Florida Herbarium
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