Alnus maritima
ssp. oklahomensis
| Family |
| Betulaceae |
| Genus |
| Alnus |
| Species |
| maritima |
| Category |
| Woody |
| Type |
| Tree (deciduous) |
| Subspecies |
| oklahomensis |
| General Description |
| A globally threatened species, added to the IUCN Red List. It is the most distinctive of its species, with large trunks, narrow leaves opening into a canopy. |
| Habitat |
| Edges of rivers in shallow water with full sun. Pennington Creek and Blue River are the only two remaining locations of this species. |
| Notable Specimens |
| Pennington Creek, Tishomingo, Oklahoma, United States of America. Blue River, Springerville, Arizona, United States of America. |