Speckled Alder (Tag Alder)
Alnus incana
Family: Betulaceae

Habitat:

Swamps, bog margins, streambeds

Location relative to water:

Rooted onshore

Range:

Most of Canada, Washington south to New Mexico and east to Virginia

Twigs:

Leaves:

  • Ovate to oval
  • 6-14 cm long (2-6 inches), 4-7 cm wide (2-3 inches)
  • Dark green and smooth on top, lighter and hairy on bottom
  • Sharply toothed and shallowly lobed
  • Petioles 1.0-2.5 cm long (0.4-1.0 inches)

Flowers:

  • Grow in catkins clustered at ends of branches
  • Male flowers grow on short stalks; elongate; 4-9 cm long (2-4 inches)
  • Female flowers rounded; 1.0-2.0 cm long (0.4-0.8 inches), 1.0 cm wide (0.4 inches)

Fruit:

  • Flat nutlet
  • Narrowly winged on margin
  • 0.20-0.40 cm long (0.08-0.16 inches)
 
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