steeplebush

not listed

N5 - Secure

SNR - Unranked

not listed

FACW - Facultative wetland

FACW - Facultative wetland

FACW - Facultative wetland

Steeplebush is an erect, perennial, 2′ to 3½′ tall, usually unbranched shrub with a woody root. It may form tall, dense thickets.

The bark is gray or reddish-brown and smooth. When it ages the bark becomes papery and peels off in fine strips.

Twigs are brownish and hairy. They do not have thorns.

Buds are long-pointed and silky. Leaf scars are raised and have just 1 bundle scar.

The leaves are alternate, crowded, and deciduous. They are egg-shaped to oblong or lance-shaped, unlobed, 1⅛″ to 2″ long, with a pointed tip. The margins have fine, sharp teeth. The upper surface is medium green and hairless. The lower surface has a dense, reddish-brown fuzz. They are attached to the twig in short leaf stalks.

The inflorescence is an erect, branched, cluster of many small flowers at the end of the stem or a branch. It is pyramid-shaped, longer than wide, 2″ to 6″ long. There are 6 to 10 flowers per centimeter (about ⅜″). The flower stems and flower cups are densely hairy.

The flowers are ⅛″ wide and slightly fuzzy. They have 5 pink or rose-purple petals, 5 light green sepals, and 20 or more long stamens. The sepals are not spreading but bend backward when the flowers are fully open. The petals are much longer than the sepals.

The fruit is a group of 5 dry, brown, woolly pods with short beaks. They contain 2 to 5 seeds.

2′ to 3½′

Pink or rose-purple

Broadleaf meadowsweet (Spiraea alba var. latifolia) is a much taller plant, 3′ to 6′ tall. The leaves are hairless on the underside. The sepals are spreading but do not bend backward when the flowers are fully open. The flower petals are white. The fruit is hairless.

Narrow-leaved meadowsweet (Spiraea alba var. alba) is a much taller plant, 3′ to 6′ tall. The leaves are hairless on the underside. The sepals are spreading but do not bend backward when the flowers are fully open. The flower petals are white. The fruit is hairless.

Moist. Meadows, bogs, streambanks. Full to partial sun.

July to September

Sources

2, 3, 4, 5, 7, 8, 28, 29, 30.

Native

The genus Spiraea was formerly included in the subfamily Spiraeoideae. A reanalysis published in 2007 found that Spiraeoideae contained all descendants of a common ancestor except a few – it was paraphyletic, and therefore invalid. In 2011, the subfamily Amygdaloideae was redefined adding the former Spiraeoideae and Maloideae.

Plant

Inflorescence

Leaves