Plantae > Tracheophyta > Magnoliopsida > Fagales > Betulaceae > Alnus > Alnus rhombifoliaAlnus rhombifolia (white alder)Synonyms: Alnus californica; Alnus rhombifolia var. bernardiana; Alnus rhombifolia var. bernardina; Alnus rhombifolia var. ovalis; Alnus rhombifolia var. typica Alnus rhombifolia, the white alder, is an alder tree native to western North America, from British Columbia and Washington east to western Montana, southeast to the Sierra Nevada, and south through the Peninsular Ranges and Colorado Desert oases in Southern California. It occurs in riparian zone habitats at an altitudes range of 100–2,400 metres (330–7,870 ft). While not reported in northern Baja California, it has been predicted on the basis of its climatic adaptation to occur there also. Alnus rhombifolia is primarily found in the chaparral and woodlands, montane, and temperate forests ecoregions. |
Air Quality Improvement [1] | Low | Allergen Potential [1] | High | Carbon Capture [1] | Medium-High | Screening - Summer [2] | Moderate | Screening - Winter [2] | Porous | Shade Percentage [1] | 82 % | Temperature Reduction [1] | High | Wind Reduction [1] | Medium | | Bloom Period [2] | Fall | Drought Tolerance [2] | Low | Edible [3] | May be edible. See the Plants For A Future link below for details. | Fire Tolerance [2] | Low | Flower Type [3] | Monoecious | Frost Free Days [2] | 6 months 20 days | Fruit/Seed Abundance [2] | High | Fruit/Seed Begin [2] | Summer | Fruit/Seed End [2] | Summer | Growth Form [2] | Multiple Stem | Growth Period [2] | Spring, Summer | Growth Rate [2] | Rapid | Hazards [3] | The freshly harvested inner bark is emetic but is alright once it has been dried; | Leaf Type [3] | Deciduous | Lifespan [2] | Perennial | Pollinators [3] | Wind | Propagation [2] | Bare Root, Container, Cutting, Seed | Root Depth [2] | 12 inches (30 cm) | Seed Spread Rate [2] | Rapid | Seed Vigor [2] | High | Seeds Per [2] | 686999 / lb (1514574 / kg) | Shape/Orientation [2] | Erect | Specific Gravity [4] | 0.41 | Structure [3] | Tree | Usage [3] | The bark and the strobils are a source of tannin;
The roots have been used to make baskets;
The inner bark can be dried, ground into a powder then mixed with flour and water for use as a dye; The colour is not specified;
The fresh bark can be chewed and used as a red dye;
Wood - light, soft, not strong, brittle, close and straight-grained, very durable in water; It is of limited value as a low-grade lumber, but is used principally for fuel; | Vegetative Spread Rate [2] | None | | Flower Color [2] | Green | Foliage Color [2] | Green | Fruit Color [2] | Brown | | Height [3] | 39 feet (12 m) | Width [1] | 30 feet (9.2 m) | | Hardiness Zone Minimum [1] | USDA Zone: 8 Low Temperature: 10 F° (-12.2 C°) → 20 F° (-6.7 C°) | Hardiness Zone Maximum [1] | USDA Zone: 11 Low Temperature: 40 F° (4.4 C°) → 50 F° (10 C°) | Light Preference [2] | Mostly Shady | Soil Acidity [2] | Neutral | Soil Fertility [2] | Infertile | Water Use [1] | High | View Plants For A Future Record : Alnus rhombifolia |
Attributes / relations provided by ♦ 1i-Tree Species v. 4.0, developed by the USDA Forest Service's Northern Research Station and SUNY-ESF using the Horticopia, Inc. plant database. ♦ 2USDA Plants Database, U. S. Department of Agriculture ♦ 3Plants For A Future licensed under a Creative Commons Attribution 4.0 License♦ 4Forest Inventory and Analysis DB version 5.1, May 4, 2013, U.S. Forest Service ♦ 5HOSTS - a Database of the World's Lepidopteran Hostplants Gaden S. Robinson, Phillip R. Ackery, Ian J. Kitching, George W. Beccaloni AND Luis M. Hernández ♦ 6Biological Records Centre Database of Insects and their Food Plants♦ 7Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics. |
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0
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