Plantae > Tracheophyta > Magnoliopsida > Asterales > Asteraceae > Eurybia > Eurybia glaucaEurybia glauca (gray aster)Synonyms: Aster glaucodes; Aster glaucodes glaucodes; Aster glaucodes var. formosus; Aster glaucodes var. glaucodes; Aster glaucoides; Aster glaucoides pulcher; Aster glaucoides var. formosus; Aster glaucoides var. pulcher (homotypic); Aster glaucus; Aster glaucus var. formosus; Aster glaucus var. glaucus (pro parte); Eucephalus formosus; Eucephalus glaucus (homotypic); Eurybia glauca var. glauca; Herrickia glauca (homotypic) Herrickia glauca is a North American species of flowering plants in the aster family, called the gray aster. It is native to the western United States, primarily in Arizona, New Mexico, Utah, Colorado, and Wyoming, with a few populations in Idaho and Montana. Herrickia glauca is a perennial herb or subshrub up to 70 centimeters (28 inches) tall from a woody rhizome. The plant produces flower heads numerous heads (sometimes over 100) in a flat-topped array. Each head contains 8-19 lavender ray florets surrounding 12-32 yellow or purplish disc florets. |
| Bloom Period [1] | Mid Summer | | Drought Tolerance [1] | Medium | | Fire Tolerance [1] | High | | Frost Free Days [1] | 4 months 10 days | | Fruit/Seed Abundance [1] | Medium | | Fruit/Seed Begin [1] | Summer | | Fruit/Seed End [1] | Fall | | Growth Form [1] | Multiple Stem | | Growth Period [1] | Spring, Summer, Fall | | Growth Rate [1] | Moderate | | Leaf Type [1] | Deciduous | | Lifespan [1] | Perennial | | Propagation [1] | Bare Root, Seed | | Regrowth Rate [1] | Slow | | Root Depth [1] | 10 inches (25 cm) | | Seed Spread Rate [1] | Slow | | Seed Vigor [1] | Low | | Seeds Per [1] | 799998 / lb (1763696 / kg) | | Shape/Orientation [1] | Erect | | Structure [2] | Herb | | Vegetative Spread Rate [1] | Moderate |  | | Flower Color [1] | Purple | | Foliage Color [1] | Yellow | | Fruit Color [1] | Brown | | | Fall Conspicuous [1] | Yes | | Flower Conspicuous [1] | Yes | | | Height [1] | 24 inches (0.6 m) | | | Hardiness Zone Minimum [1] | USDA Zone: 2 Low Temperature: -50 F° (-45.6 C°) → -40 F° (-40 C°) | | Light Preference [1] | Full Sun | | Soil Acidity [1] | Neutral | | Soil Fertility [1] | Infertile | | Water Use [1] | Moderate | | | Screening - Winter [1] | Porous |
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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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