Alnus maritima (Marshall) Muhl. ex Nutt.
Betulaceae (Birch Family)
Synonym(s): Alnus maritima ssp. metoporina, Alnus maritima var. metoporina, Alnus metoporina, Betula-Alnus maritima
USDA Symbol: ALMA7
Small, autumn flowering tree with straight trunk and narrow, rounded crown, or a much-branched shrub. Both common and Latin species names refer to the local but not rare distribution near (but not on) the coast. The isolated occurrence in southern Oklahoma is unexplained.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Habit: Shrub , Tree
Leaf Retention: Deciduous
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Shape: Elliptic , Obovate
Leaf Venation: Pinnate
Leaf Pubescence: Glabrous
Leaf Margin: Serrate
Leaf Apex: Acute , Obtuse
Leaf Base: Cuneate
Leaf Texture: Leathery
Breeding System: Flowers Unisexual , Monoecious
Fruit Type: Samara
Size Notes: Height to 10 M.
Bloom InformationBloom Color: Red , Green
Bloom Time: Jul , Aug
DistributionUSA: DE , GA , MD , OK
Native Distribution: S. Delaware, E. shore of Maryland, and S. Delaware near sea level; S. Oklahoma at 700' (213 m).
Native Habitat: Wet soil bordering streams and ponds.
Growing ConditionsWater Use: High
Light Requirement: Part Shade
CaCO3 Tolerance: Low
National Wetland Indicator Status
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Mt. Cuba Center - Hockessin, DE
Additional resourcesUSDA: Find Alnus maritima in USDA Plants
FNA: Find Alnus maritima in the Flora of North America (if available)
Google: Search Google for Alnus maritima
MetadataRecord Modified: 2014-10-07
Research By: TWC Staff