# Siberian Aster (*eurybia sibirica*)

The Siberian Aster (Eurybia sibirica) is a hardy, perennial wildflower that thrives in the cold, rugged terrains of the subarctic and alpine regions. Part of the aster family, this resilient plant brings vibrant bursts of purple and gold to rocky slopes, gravelly riverbanks, and open woodlands. It plays a vital ecological role, providing early-to-mid-season nectar for northern pollinators when resources can be scarce. Its ability to tolerate extreme cold and poor soils makes it a true survivor of the northern wilderness, capturing the hearts of hikers and botanists alike with its delicate, star-like blooms set against harsh backdrops.

- **Category:** [Plants](https://www.snappit.app/explore/categories/plant)
- **Rarity:** Common
- **Danger:** 1/5 · Very low
- **Snaps:** 1
- **Habitat:** Found in gravelly riverbars, subalpine meadows, open coniferous forests, and rocky slopes of arctic and subarctic regions.

![Siberian Aster](https://inaturalist-open-data.s3.amazonaws.com/photos/146968354/medium.jpeg)

Photo: Matt Muir, CC BY 4.0 · [iNaturalist](https://www.inaturalist.org/photos/146968354)

## Appearance

This perennial herb grows between 10 to 60 centimeters tall, featuring lance-shaped, alternate green leaves that often have slightly serrated margins. The daisy-like flower heads are concentrated at the top of reddish-brown, finely haired stems. Each flower showcases narrow violet-to-purple ray florets surrounding a central disc. This central disc starts as a bright yellow and gradually matures to a reddish-purple hue as the flower ages.

## Taxonomy

- **Kingdom:** Plantae
- **Phylum:** Tracheophyta
- **Class:** Magnoliopsida
- **Order:** Asterales
- **Family:** Asteraceae
- **Genus:** Eurybia

## Interesting facts

- In addition to dispersing seeds via the wind, the Siberian Aster can propagate vegetatively, forming dense clonal colonies from a single parent plant.
- The genus name 'Eurybia' comes from the Greek word for 'wide' or 'broad', referencing the extensive distribution of these hardy northern asters.
- The plant's preference for gravelly, disturbed areas makes it a pioneer species that helps stabilize riverbeds and prevent soil erosion.

## Special abilities

- **Freeze Tolerance:** Produces natural cryoprotectant compounds in its cells, allowing it to withstand sub-zero arctic temperatures without tissue damage.
- **Rhizomatous Colonization:** Utilizes creeping underground rhizomes to anchor securely in unstable gravel riverbeds and rapidly regenerate after physical disturbances.
- **Pollinator Signaling:** Changes its central disc color from yellow to reddish-purple after pollination, signaling to visiting insects which flowers no longer contain nectar.

## Measurements & details

- **Length:** 10-60 cm
- **Lifespan:** 3-10 years

## Diet & Feeding

As a photoautotrophic plant, the Siberian Aster synthesizes its own food using sunlight, carbon dioxide, water, and essential soil minerals.

- **Primary Foods:** Sunlight, Water, Carbon dioxide, Soil nitrogen, Phosphorus

## Ecological connections

- **Mutualism:** Arctic Bumblebee (*Bombus polaris*) — The bumblebee feeds on nectar and serves as a primary pollinator of the flower.
- **Eaten by:** [Moose](https://www.snappit.app/explore/moose) (*Alces alces*) — Browses on the leafy green stems of the aster during the early summer season.
- **Mutualism:** Arbuscular Mycorrhizal Fungi (*Glomus intraradices*) — Helps the aster absorb vital nutrients, especially phosphorus, in nutrient-poor northern soils.

## Safety

**Danger:** 1/5 · Very low

No special safety notes yet.

## Frequently Asked Questions

### How to identify Siberian Aster?

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 long is Siberian Aster?

10-60 cm

### How long does Siberian Aster live?

3-10 years

### What does Siberian Aster eat?

As a photoautotrophic plant, the Siberian Aster synthesizes its own food using sunlight, carbon dioxide, water, and essential soil minerals.

### Where is Siberian Aster usually found?

Found in gravelly riverbars, subalpine meadows, open coniferous forests, and rocky slopes of arctic and subarctic regions.

## Where to spot

- [Gakona Historic District](https://www.snappit.app/guides/places/gakona-historic-district) — Alaska, US · Historic District
- [Kennecott](https://www.snappit.app/guides/places/kennecott) — Alaska, US · Historic District

## 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*)

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Source: [Siberian Aster: Facts & Places to See — Snappit](https://www.snappit.app/explore/siberian-aster)