by Jeffrey S. Pippen | Back to Jeff's Plant Page | Jeff's Nature Pages
Betulaceae > Alnus | |
Hazel Alder, Tag Alder, Smooth Alder (Alnus serrulata) Durham Co., NC 9 Feb 2008 Blooming in late winter, alders produce separate male and female catkins (clusters of flowers). The male catkins are the long yellow clusters on the right. The fresh female catkins are the small reddish clusters directly above the males. The cone-like structures on the left are last year's female catkins, where the seeds were produced and released. | |
Hazel Alder, Tag Alder, Smooth Alder (Alnus serrulata) Durham Co., NC 9 Feb 2008 Clusters of male and female catkins. | |
Hazel Alder, Tag Alder, Smooth Alder (Alnus serrulata) Durham Co., NC 9 Feb 2008 Close-up of female catkins. Note also the fuzzy twigs. | |
Hazel Alder, Tag Alder, Smooth Alder (Alnus serrulata) Scotland Co., NC 20 Apr 2008 Leaves are alternate and sharply toothed with fuzzy petioles. | |
Hazel Alder, Tag Alder, Smooth Alder (Alnus serrulata) Scotland Co., NC 20 Apr 2008 | |
Hazel Alder, Tag Alder, Smooth Alder (Alnus serrulata) Scotland Co., NC 20 Apr 2008 Young to medium-aged twigs may be brownish-burgundy with pale lenticels. | |
Hazel Alder, Tag Alder, Smooth Alder (Alnus serrulata) Scotland Co., NC 20 Apr 2008 Alder stem attacked by some fungus(?). | |
Hazel Alder, Tag Alder, Smooth Alder (Alnus serrulata) Durham Co., NC 9 Feb 2008 Older bark is gray and smooth. | |
Hazel Alder, Tag Alder, Smooth Alder (Alnus serrulata) Durham Co., NC 9 Feb 2008 Hazel Alder is common throughout North Carolina along streams and in marshy habitats. | |
Green Alder, Sitka Alder (Alnus viridis sinuata) Clearwater Co., ID 9 May 2012 Found in northwestern North America, this large shrub often grows in thickets along slopes at mid to hi elevations. | |
Green Alder, Sitka Alder (Alnus viridis sinuata) Clearwater Co., ID 9 May 2012 | |
Green Alder, Sitka Alder (Alnus viridis sinuata) Clearwater Co., ID 9 May 2012 |
Black Alder, European Alder (Alnus glutinosa) St. Clair Co., MI 7 July 2012 Native to Europe and naturalized across the Midwest in the US & Ontario. Not yet recorded in North Carolina. | |
Black Alder, European Alder (Alnus glutinosa) St. Clair Co., MI 7 July 2012 Easily recognized by rounded to truncate to partially notched leaf tips. | |
Black Alder, European Alder (Alnus glutinosa) St. Clair Co., MI 7 July 2012 Young stem detail. |
Annotated habitat and distribution information listed above is from Radford, Ahles, & Bell. 1968. Manual of the Vascular Flora of the Carolinas. UNC Press; and from personal observations and discussions with Will Cook, Harry LeGrand, and Bob Wilbur. Common names from personal experience and supplemented by the following resources USDA plants website, Flora of the Carolinas, Virginia, and Georgia, and NatureServe.
Created on ... Feb 9, 2008 | jeffpippen9@gmail.com