Alnus maritima (Marshall) Muhl. ex Nutt.

Seaside alder (en), Aulne (fr)

Species

Angiosperms > Fagales > Betulaceae > Alnus

Characteristics

Shrubs or trees , to 10 m; crowns narrow. Bark light gray, smooth; lenticels small, inconspicuous. Winter buds stipitate, ovoid to ellipsoid, 2.5--5 mm, apex rounded; stalks 1--3 mm; scales 2--3, subequal, often poorly developed, heavily resin-coated. Leaf blade narrowly elliptic, oblong, or narrowly obovate, 4.5--9 × 2--5 cm, leathery, base acute to cuneate, margins flat, teeth low, single, relatively distant, apex acute, obtuse, or rounded; surfaces abaxially mostly glabrous, resin-coated when young. Inflorescences: catkins formed during same season as flowering; staminate catkins in 1 terminal cluster of 2--4, 2--6 cm; pistillate catkins solitary in leaf axils proximal to staminate catkins. Flowering in late summer or early fall. Infructescences ovoid, 1.2--2.8 × 1.2--2.2 cm; peduncles 5--10 mm. Samaras elliptic, wings reduced to narrow, leathery ridges. 2 n = 28.
More
Tall shrub or small tree; lvs oblong to obovate, obtuse to short-acuminate, serrate with low, distant, ascending or incurved teeth, broadly cuneate at base, dull green and glabrous beneath; principal lateral veins mostly 5–8 on a side, mostly curved-ascending, often not reaching the margins; fruiting catkins evidently pedunculate, not leafy-bracteate, relatively large, 1.5–3 cm long, often 1.5 cm thick, with very broad scales; fr ovate to obovate, 3–4 mm, 2/3 as wide; catkins in anthesis in late summer or fall (unique among our spp.); 2n=28. Edges of ponds and small streams, often in standing water; Delmarva peninsula; disjunct in s.c. Okla., where said to have been intr. from Delmarva by relocated Indians. (A. metaporina)
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention deciduous
Sexuality monoecy
Pollination anemogamy
Spread -
Mature width (meter) -
Mature height (meter) 9.0
Root system -
Rooting depth (meter) 1.0
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer
Photosynthetic pathway -

Environment

Along edges of ponds and small streams, often in standing water; from sea level to 100 metres.
Light 5-7
Soil humidity 6-8
Soil texture 2-4
Soil acidity 3-6
Soil nutriment -
Hardiness (USDA) 5-8

Usage

Uses dye material medicinal poison wood
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings.
Mode cuttings seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -18
Optimum temperature (C°) 8 - 20
Size -
Vigor -
Productivity -

Images

Alnus maritima unspecified picture

Distribution

Alnus maritima world distribution map, present in Georgia and United States of America

Conservation status

Alnus maritima threat status: Endangered

Identifiers

LSID urn:lsid:ipni.org:names:9436-2
WFO ID wfo-0000946711
COL ID C2R8
BDTFX ID 78752
INPN ID 162503
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Alnus maritima Alnus metoporina Betula-alnus maritima Alnus maritima subsp. georgiensis Alnus maritima subsp. oklahomensis Alnus oblongata var. oblonga