What tree is Alnus?

Table of Contents

Alders
Alders are trees comprising the genus Alnus in the birch family Betulaceae. The genus comprises about 35 species of monoecious trees and shrubs, a few reaching a large size, distributed throughout the north temperate zone with a few species extending into Central America, as well as the northern and southern Andes.

How many species of alder are there?

Alder (Alnus) is a genus of flowering deciduous trees in the family Betulaceae. There are about 35 alder species, comprising of large trees and smaller shrub-like trees. Many species of alders grow between 66 and 100 ft. (20 – 30 m) tall.

Is Alnus glutinosa invasive?

Alnus glutinosa has been identified as an invasive plant capable of displacing desirable vegetation (Herron et al. 2007, NatureServe 2010). It is associated with a number of nitrogen-fixing actinomycetes fungi that directly increase soil nitrogen concentrations (Hall et al. 1979).

Is alder an invasive species?

Invasive impacts Black alder has been known to establish single species colonies as a result of its fast growth rate and high rate of seed production, out-competing native trees and other plants. Black alder is also known to change wetland ecosystems in a number of ways.

What is Alnus glutinosa used for?

Alnus glutinosa has various environmental uses, including erosion control, soil improvement and as an ornamental. It is also used for building materials (wood) and as a traditional medicine. (USDA-ARS 2010). Alders have been recommended for afforestation of disturbed areas throughout much of the temperate world.

Is Alnus glutinosa Evergreen?

Alder (Alnus glutinosa) plants are a group of very useful, quick growing deciduous trees which thrive in poor, wet or waterlogged soil and exposed sites.

What is the scientific name of alder tree?

AlnusAlder / Scientific name

What is the scientific name for alder?

AlnusAlder / Scientific name

Alnus glutinosa, the common alder, black alder, European alder, European black alder, or just alder, is a species of tree in the family Betulaceae, native to most of Europe, southwest Asia and northern Africa.

Where is Alnus glutinosa native?

How does Alnus glutinosa reproduce?

2008; Funk 2005; Kelly & Southwood 2006a,b; Willoughby et al. 2007). While Alnus glutinosa can reproduce sexually and vegetatively, reproduction occurs predominately by seed (Alaska Natural Heritage Program 2005).

What is black alder good for?

Black alder is a tree. The bark and leaves are used to make medicine. People take black alder for bleeding, sore throat, fever, swelling, constipation, rheumatoid arthritis, and cancer. Black alder is sometimes used as a gargle for sore throat, especially strep throat.

How do you grow Alnus glutinosa from seed?

Customer Review – Alnus glutinosa Prior to sowing soak seed in warm water for 24 hours. Drain water and place seeds in a polythene bag, seal and place in the fridge, temp. 4°C for 4 weeks. This period of cold stratification is required for germination.

Do alder trees produce fruit?

These fruits, along with the attractive, dark brown, furrowed bark and multi-stemmed growth habit, make common alder an attractive landscape specimen throughout the winter. The fruits are food for a variety of wildlife.

Is alder a softwood or hardwood?

hardwood
How Hard Is Alder Wood? Alderwood is one of the softest woods in the hardwood family, just above pine and poplar. It has a bending strength (in PSI) of 9,800, making it pliable but relatively soft. These properties make it an excellent option for cabinetry, bedding, and other decorative furniture inside the home.

What animals eat alder?

Muskrats, beavers, cottontails, and snowshoe hares eat alder (Alnus spp.) twigs and leaves [24]. Beavers eat the bark of alders, and build dams and lodges with the stems [49].

How do I identify black alder?

The easiest way of recognizing an alder tree is by its distinctive little fruiting body, called a strobile. They appear in fall and look like 1 inch (2.5 cm.) long cones. Strobiles remain on the tree until the following spring, and the small, nutlike seeds they contain supply winter food for birds and small mammals.

How do you germinate Alnus seeds?

Cover the seeds with a couple of millimeters of vermiculite or failing that a fine layer of sieved compost. Follow with a gentle watering and keep them at room temperature. Germination will begin from a few weeks following sowing.

Do alder trees grow fast?

Mature Common Alder. A popular tree of moist to wet soils, common alder is a moderate to fast-growing (two feet per year) deciduous tree which usually grows to 40 to 50 feet in height with a 20 to 40-foot spread and a 12 to 18-inch trunk but is capable of reaching 80 feet in height in the woods (Fig. 1).

What are alder seeds called?

The seeds, or nutlets, are flat and waxy and have two corky wings containing air bubbles, which allows them to float and to be carried away by water. The cones often remain on the tree during the wintertime, long after the seeds are gone. Ripening alder cones – they will dry and open to disperse the seeds.

What is the genus and species name of Alnus?

The genus, Alnus, is Latin for alder. The species name, glutinosa , is reflective of the sticky texture of its young leaves and stems. The tree is readily identifiable by its glossy and toothed margined leaves as well as by its dangling catkins seen in the spring and cone-like fruits seen in the fall.

Alnus glutinosa is known for attracting bees, beneficial insects, birds, butterflies/moths and other pollinators. It is a caterpillar food plant, has nectar/pollen rich flowers, provides shelter and habitat and has seeds for birds.

What does A glutinosa tree look like?

The species name, glutinosa , is reflective of the sticky texture of its young leaves and stems. The tree is readily identifiable by its glossy and toothed margined leaves as well as by its dangling catkins seen in the spring and cone-like fruits seen in the fall.

What tree is Alnus?