# great brome (*Bromus diandrus*)

Great brome is a tall grass that grows in fields and along roadsides. It has long, slender leaves and fluffy seed heads that dance in the wind, making it a fun sight to see!

- **Category:** [Plants](https://www.snappit.app/explore/categories/plant)
- **Rarity:** Common
- **Danger:** 1/5 · Very low
- **Snaps:** 4
- **Habitat:** Grasslands

![great brome](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Bromusdiandrus.jpg&width=800)

Photo: Gordon Leppig & Andrea J. Pickart, Public domain · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Bromusdiandrus.jpg)

## Appearance

The great brome is a tall, slender grass, often recognized by its drooping, open seed heads. These seed heads frequently develop a purplish or reddish hue as they mature, setting them apart from other green grasses. Each seed has a long, stiff bristle called an awn.

## Taxonomy

- **Kingdom:** Plantae
- **Phylum:** Tracheophyta
- **Class:** Liliopsida
- **Order:** Poales
- **Family:** Poaceae
- **Genus:** Bromus

## Interesting facts

- Great brome seeds can stay hidden and alive in the soil for many years!
- Its long, pointy awns can sometimes get stuck in animals' eyes or mouths!
- Look closely at its seeds; they are very bristly, like tiny brushes!
- This adaptable grass can grow in poor soils where many other plants struggle.

## Special abilities

- **Hitchhiker Seeds:** Great brome has sharp, barbed awns that cling to fur or clothing, helping its seeds travel far.
- **Rapid Colonizer:** Great brome can sprout quickly and grow fast, allowing it to take over new areas very effectively.
- **Fire Fuel:** This grass dries out early in the season, creating a lot of dry material that can fuel wildfires.

## Measurements & details

- **Height:** 30-90 cm
- **Bloom Season:** Spring_summer
- **Edible:** No
- **Toxicity:** None
- **Lifecycle:** Annual
- **Pollination Method:** Wind

## Ecological connections

- **Eaten by:** [European rabbit](https://www.snappit.app/explore/european-rabbit) (*Oryctolagus cuniculus*) — eats leaves and seeds
- **Eaten by:** [Mule deer](https://www.snappit.app/explore/mule-deer) (*Odocoileus hemionus*) — browses on young plants
- **Eaten by:** [House mouse](https://www.snappit.app/explore/house-mouse) (*Mus musculus*) — consumes its seeds
- **Eats:** [Red-legged grasshopper](https://www.snappit.app/explore/red-legged-grasshopper) (*Melanoplus femurrubrum*) — feeds on the leaves

## Traits

- [Ornamental](https://www.snappit.app/explore/traits/ornamental): Ornamental plants are cultivated primarily for their aesthetic appeal, enhancing landscapes and gardens with their attractive foliage, flowers, or form.
- [Grass-Like](https://www.snappit.app/explore/traits/grass-like): Grass-like plants are herbaceous plants that visually resemble true grasses, typically having long, narrow leaves.
- [Drought Tolerant](https://www.snappit.app/explore/traits/drought-tolerant): Drought-tolerant plants can survive and flourish in conditions with limited water availability.
- [Edible](https://www.snappit.app/explore/traits/edible): Edible plants are those parts of a plant that are considered safe for human consumption.
- [Grassland](https://www.snappit.app/explore/traits/grassland): Grassland habitats are terrestrial biomes dominated by grasses and herbaceous plants, supporting a variety of grazing animals.
- [Rapid Growing](https://www.snappit.app/explore/traits/rapid-growing): Rapid growing plants exhibit accelerated growth rates, quickly increasing in size and biomass within a short period.

## Collections

- [Plants](https://www.snappit.app/explore/collections/plants)

## Safety

**Danger:** 1/5 · Very low

Always stay on paths and be careful not to pull plants without asking an adult.

## Frequently Asked Questions

### How to identify great brome?

Compare seed heads, stem shape, how leaves attach, and the joint where leaf meets stem. A patch of mown lawn rarely shows enough for an exact ID. Grass Identifier: upload a photo and compare the visible details.

### How tall is great brome?

30-90 cm

### When does great brome bloom?

Spring_summer

### Is great brome edible?

No

### Is great brome toxic?

None

### What is great brome's lifecycle?

Annual

### How is great brome pollinated?

Wind

### Where is great brome usually found?

Grasslands

## Where to spot

- [Sonoma Plaza](https://www.snappit.app/guides/places/sonoma-plaza) — California, US · Park
- [Descanso Gardens](https://www.snappit.app/guides/places/descanso-gardens) — California, US · Botanical Garden
- [Mauna Kea Ice Age Reserve](https://www.snappit.app/guides/places/mauna-kea-ice-age-reserve) — Hawaii, US · Nature Reserve
- [Point San Luis Light](https://www.snappit.app/guides/places/point-san-luis-light) — California, US · Historic District
- [Sam Smith Park](https://www.snappit.app/guides/places/sam-smith-park) — Washington, US · Park

[View all places to see great brome](https://www.snappit.app/guides/where-to-see/great-brome)

## 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: [Great Brome: Facts & Places to See — Snappit](https://www.snappit.app/explore/great-brome)
