UW Burke Herbarium species comparison

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Symphyotrichum jessicae

Jessica's aster, Palouse aster
Habit Stout perennial from a rhizome, 4-12 dm. tall, the herbage densely soft-pubescent.
Leaves

Leaves ample, the lower abruptly petiolate, often deciduous; other leaves broadly lanceolate or ovate, sessile, 6-13 cm. long and 1.5-3.5 cm. wide.
Flowers

Inflorescence a panicle, the heads numerous;

involucre 7-10 mm. high, the bracts pubescent, imbricate;

disk flowers numerous, yellow;

rays 18-30, bluish, 12-20 mm. long;

pappus of numerous tawny, capillary bristles.
Fruits

Achenes pubescent.

Symphyotrichum jessicae
Flowering time July-September
Habitat Streambanks and open places.
Distribution
Occurring east of the Cascades crest in eastern Washington; eastern Washington to adjacent western Idaho.
[WildflowerSearch map]
[BONAP county map]
Origin Native
Conservation status Endangered in Washington (WANHP)
Sibling taxa
S. ×amethystinum, S. ascendens, S. boreale, S. bracteolatum, S. campestre, S. chilense, S. ciliatum, S. ×columbianum, S. ericoides, S. foliaceum, S. frondosum, S. hallii, S. laeve, S. lanceolatum, S. novae-angliae, S. pilosum, S. spathulatum, S. subspicatum
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Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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