Selected Plants of Navajo Rangelands

Take care of our Navajo Rangelands

Siberian elm
Naasts’ósí bit’iis

The seeds of the elm are called samaras. The seed is inclosed in a papery membrane.

Siberian elm is an introduced, fast-growing tree, from 50 to 70 feet in height. Its leaves are alternate, oblong in shape, 1 to 3 inches long, and usually have serrate (saw-toothed) margins. The flowers are greenish and clustered, with short pedicels. They appear with or before the leaves, from March through April. The bark is a light gray-brown with irregular furrows and is often streaked with stains caused by bacterial wetwood. The fruit, a samara, ripens from April to May, and consists of a dry, compressed nutlet surrounded by a thin, membranous wing.

Gray-brown bark with dark markings and furrows
A swollen spring bud, which is deep, dark, brownish-red with tiny white hairs
Flowers coming out of the bud
Leaves are oblong with toothed margins
Growth habit

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