# arum lilies (*Arum*)

Arum lilies are beautiful flowers with a unique shape that looks like a trumpet. They come in many colors, including white, yellow, and pink, and can grow in gardens or near water.

- **Category:** [Plants](https://www.snappit.app/explore/categories/plant)
- **Rarity:** Common
- **Danger:** 3/5 · Moderate
- **Habitat:** Wetlands

![arum lilies](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Arum_maculatum_0_700.jpg&width=800)

Photo: CC BY-SA 3.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Arum_maculatum_0_700.jpg)

## Appearance

The arum lily has a unique, hood-like leaf structure called a spathe, which often wraps around a central stalk, the spadix. The spathe can be creamy white, green, or purplish-brown, sometimes mottled, making it visually distinct from typical open flowers.

## Taxonomy

- **Kingdom:** Plantae
- **Phylum:** Tracheophyta
- **Class:** Liliopsida
- **Order:** Alismatales
- **Family:** Araceae
- **Genus:** Arum

## Interesting facts

- Arum lilies can keep visiting insects trapped inside overnight to ensure pollination.
- Some arum lilies actually create their own heat, like a tiny plant heater!
- The colorful "petal" is actually a fancy leaf that wraps around the real flowers.
- Their strange smell helps them trick flies into visiting their "flower" for pollen.

## Special abilities

- **Heat Generator:** Arum lilies can warm their flower parts to spread stinky smells more effectively, attracting pollinators.
- **Insect Trap:** The lily's special flower shape temporarily traps small flies inside, ensuring they pick up pollen.
- **Stinky Signal:** Arum lilies produce foul odors, like rotting meat, to attract carrion-loving insects for pollination.

## Measurements & details

- **Height:** 20-60 cm
- **Spread:** 30-50 cm
- **Flower Size:** 10-30 cm
- **Bloom Season:** Spring, early summer
- **Edible:** No
- **Toxicity:** Moderate
- **Lifecycle:** Perennial
- **Pollination Method:** Insect

## Ecological connections

- **Pollinates:** Drain Fly (*Psychoda phalaenoides*) — Attracted by the lily's warm, foul odor.
- **Pollinates:** Lesser House Fly (*Fannia canicularis*) — Drawn to the carrion-like scent for pollination.
- **Eats:** Blackbird (*Turdus merula*) — Eats the bright red berries, helping to spread seeds.
- **Eats:** Spanish Slug (*Arion lusitanicus*) — Slugs can feed on leaves and young shoots of the plant.

## Traits

- [Bell-Shaped Flower](https://www.snappit.app/explore/traits/bell-shaped-flower): Bell-shaped flowers possess petals fused or arranged to form a cup-like or campanulate structure resembling a bell.
- [Flowering](https://www.snappit.app/explore/traits/flowering): Flowering plants are any plants that produce flowers as part of their reproductive cycle.
- [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.
- [Spring Blooming](https://www.snappit.app/explore/traits/spring-blooming): Spring blooming plants produce their flowers during the spring season, often signifying the end of winter and the start of new growth.
- [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.
- [Tube Flower](https://www.snappit.app/explore/traits/tube-flower): A tube flower has petals fused together at the base, forming a distinct tubular structure that typically holds nectar deep within.
- [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.
- [Wetland](https://www.snappit.app/explore/traits/wetland): This habitat trait identifies species found in wetlands, which are areas of land saturated with water, either permanently or seasonally, including marshes, swamps, and bogs.

## Collections

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

## Safety

**Danger:** 3/5 · Moderate

Do not touch or eat the flowers, as they can be harmful.

## Frequently Asked Questions

### How to identify arum lilies?

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 arum lilies?

20-60 cm

### How wide does arum lilies spread?

30-50 cm

### How big are the flowers on arum lilies?

10-30 cm

### When does arum lilies bloom?

Spring, early summer

### Is arum lilies edible?

No

### Is arum lilies toxic?

Moderate

### What is arum lilies's lifecycle?

Perennial

## 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: [Arum Lilies: Facts & Places to See — Snappit](https://www.snappit.app/explore/arum-lilies)
