UW Burke Herbarium species comparison

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Spiraea corymbosa

Spiraea douglasii

Douglas's spiraea, hardhack steeplebush
Habit Erect, deciduous, freely-branching shrub 1-2 m. tall, the young growth somewhat woolly, the older bark brown.
Leaves

Leaf blades oblong-elliptic to oblong-obovate, 4-10 cm. long, dark green and glabrous above, much paler and woolly beneath, remotely serrate on the upper half.
Flowers

Inflorescence an elongate panicle, 6-20 cm. long, several times as long as broad, oblong to conic;

calyx finely woolly, the 5 lobes triangular, reflexed, 1 mm. long;

petals pink to deep rose, obovate, 1.5-2 mm. long;

stamens 25-50, the filaments pink.
Fruits

Follicles shiny, glabrous, leathery, 2.5-3 mm. long.

Spiraea corymbosa

Spiraea douglasii
Flowering time June-August
Habitat Swamps, lake margins and damp meadows, from sea level to the subalpine.
Distribution
Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to Montana and Colorado.
[WildflowerSearch map]
[BONAP county map]
Origin Native
Conservation status Not of concern
Sibling taxa
S. douglasii, S. ×hitchcockii, S. lucida, S. ×pyramidata, S. splendens
S. ×hitchcockii, S. lucida, S. ×pyramidata, S. splendens
Subordinate taxa
S. douglasii var. douglasii, S. douglasii var. menziesii
Web links 
Unless otherwise noted, all data comes from the University of Washington's Burke Herbarium.



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in UW Burke Herbarium yet, or it's listed under a synonym.)

Choose a data source: Flora of North America, OregonFlora, UW Burke Herbarium

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