UW Burke Herbarium species comparison

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Sorbus aucuparia

Sorbus hybrida

European mountain-ash

Swedish mountain-ash, Swedish service-tree
Habit Small, deciduous, gray-barked tree with spreading branches, 5-12 m. tall, the young growth with soft, gray hairs.
Leaves

Leaves pinnate;

leaflets 11-15, oblong-lanceolate, pointed, 3-6 cm. long, finely and sharply serrate the full length.

Flowers

Inflorescence a large, flat-topped panicle, with at least 75 flowers;

calyx obconic, hairy, the 5 lobes triangular, persistent;

petals 5, white, nearly orbicular, 4 mm. long;

stamens 15-20, equaling the petals;

carpels 3-4, the styles 2-3 mm. long.

Fruits

Fruit globose, fleshy, bright red, pendulous, 10 mm. broad.

Sorbus aucuparia

Sorbus hybrida
Flowering time May-June May-June
Habitat Forest edge, thickets, shorelines, and other generally moist areas where often disturbed. Shoreline ledges and thickets at low elevations.
Distribution
Occurring chiefly west of the Cascades crest in Washington; Alaska to Oregon, east to the Atlantic Coast.
[WildflowerSearch map]
[BONAP county map]
Occurring west of the Cascades crest in lowland western Washington.
[WildflowerSearch map]
[BONAP county map]
Origin Introduced from Europe Introduced
Conservation status Not of concern Not of concern
Sibling taxa
S. hybrida, S. scopulina, S. sitchensis
S. aucuparia, S. scopulina, S. sitchensis
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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