UW Burke Herbarium species comparison

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Sorbus aucuparia

Sorbus

European mountain-ash

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



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