# western moss-heather (*Cassiope mertensiana*) Western moss-heather is a small, beautiful plant that grows in cool, rocky places. It has lovely pink or white flowers that bloom in the summer, making it a pretty sight in nature. - **Category:** [Plants](https://www.snappit.app/explore/categories/plant) - **Rarity:** Common - **Danger:** 1/5 · Very low - **Snaps:** 1 - **Habitat:** Mountain regions ![western moss-heather](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Cassiope_mertensiana_9193.JPG&width=800) Photo: Walter Siegmund (talk), CC BY-SA 3.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Cassiope_mertensiana_9193.JPG) ## Appearance The western moss-heather is a low-growing evergreen shrub, forming dense mats. It has tiny, overlapping scale-like leaves, giving it a mossy texture. Its delicate, white to pinkish, bell-shaped flowers dangle downwards from short stalks. ## Taxonomy - **Kingdom:** Plantae - **Phylum:** Tracheophyta - **Class:** Magnoliopsida - **Order:** Ericales - **Family:** Ericaceae - **Genus:** Cassiope ## Interesting facts - It can live for many decades, bravely facing harsh mountain weather year after year! - Its tiny leaves feel scaly, like miniature dragon scales found on the mountain slopes! - Many call it 'White Heather' because of its charming, delicate, white bell-shaped flowers. - This hardy plant often grows right where the snow melts, loving cool, damp soil. ## Special abilities - **Alpine Survivor:** Western moss-heather has tiny, scale-like leaves that help it reduce water loss in dry, windy mountain environments. - **Snow Shield:** Its low, mat-forming growth protects it from harsh winds and heavy snow, allowing it to thrive in tough alpine zones. - **Winter Green:** Western moss-heather is evergreen, meaning it keeps its leaves all year round, ready to photosynthesize whenever possible. ## Measurements & details - **Height:** 5-30 cm - **Spread:** 10-50 cm - **Flower Size:** 0.4-0.8 cm - **Bloom Season:** Late spring to mid-summer - **Edible:** No - **Toxicity:** None - **Lifecycle:** Perennial - **Pollination Method:** Insect ## Ecological connections - **Pollinates:** two-form bumblebee (*Bombus bifarius*) — collects nectar and pollen - **Pollinates:** honey bee (*Apis mellifera*) — gathers nectar from its flowers - **Eaten by:** [mule deer](https://www.snappit.app/explore/mule-deer) (*Odocoileus hemionus*) — browses its evergreen foliage - **Eaten by:** [mountain goat](https://www.snappit.app/explore/mountain-goat) (*Oreamnos americanus*) — grazes on the tough leaves ## Traits - [Flowering](https://www.snappit.app/explore/traits/flowering): Flowering plants are any plants that produce flowers as part of their reproductive cycle. - [Shrub](https://www.snappit.app/explore/traits/shrub): A shrub is a woody plant smaller than a tree, typically with multiple stems branching from or near the ground. - [Summer Blooming](https://www.snappit.app/explore/traits/summer-blooming): Summer blooming plants produce their flowers during the summer season, often providing vibrant color when many other plants have finished. - [Cold Hardy](https://www.snappit.app/explore/traits/cold-hardy): Cold hardy plants are able to withstand low temperatures and freezing conditions without significant damage. - [Fragrant Flower](https://www.snappit.app/explore/traits/fragrant-flower): Fragrant flowers emit a pleasant aroma, often to attract pollinators or for defense. - [Pollinator Magnet](https://www.snappit.app/explore/traits/pollinator-magnet): Describes plants that are particularly attractive and beneficial to a wide range of pollinating organisms. - [Mountain](https://www.snappit.app/explore/traits/mountain): This habitat trait identifies species found in mountainous regions, characterized by high elevation, steep slopes, and varying climate zones. - [Keystone Species](https://www.snappit.app/explore/traits/keystone-species): Describes a species whose presence and role have a disproportionately large effect on its environment. ## Collections - [Plants](https://www.snappit.app/explore/collections/plants) ## Safety **Danger:** 1/5 · Very low Always look but don't touch plants unless you know they are safe. ## Frequently Asked Questions ### How to identify western moss-heather? Start with the whole plant, then compare leaf arrangement, leaf edges, stems and any flowers or fruit. Opposite leaves grow in pairs; alternate leaves come one at a time along the stem. These details tell you far more together than a single green leaf does. Plant Identifier: upload a photo and compare the visible details. ### How tall is western moss-heather? 5-30 cm ### How wide does western moss-heather spread? 10-50 cm ### How big are the flowers on western moss-heather? 0.4-0.8 cm ### When does western moss-heather bloom? Late spring to mid-summer ### Is western moss-heather edible? No ### Is western moss-heather toxic? None ### What is western moss-heather's lifecycle? Perennial ## Where to spot - [Sunrise Historic District](https://www.snappit.app/guides/places/sunrise-historic-district) — Washington, US · Historic District - [Yakima Park Stockade Group](https://www.snappit.app/guides/places/yakima-park-stockade-group) — Washington, US · Historic District - [Cypress Provincial Park](https://www.snappit.app/guides/places/cypress-provincial-park) — British Columbia, CA · State Park - [Kokanee Glacier Provincial Park](https://www.snappit.app/guides/places/kokanee-glacier-provincial-park) — British Columbia, CA · State Park [View all places to see western moss-heather](https://www.snappit.app/guides/where-to-see/western-moss-heather) ## More Plants - [white snakeroot](https://www.snappit.app/explore/white-snakeroot) (*Ageratina altissima*) - [tree-of-heaven](https://www.snappit.app/explore/tree-of-heaven) (*Ailanthus altissima*) - [western sword fern](https://www.snappit.app/explore/western-sword-fern) (*Polystichum munitum*) - [common milkweed](https://www.snappit.app/explore/common-milkweed) (*Asclepias syriaca*) --- Source: [Western Moss-heather: Facts & Places to See — Snappit](https://www.snappit.app/explore/western-moss-heather)