# stinknet (*Oncosiphon pilulifer*)

Stinknet is a plant that can grow in many places. It has small yellow flowers and can smell quite strong, especially when touched! Some people find its smell a bit stinky, but it’s a part of nature.

- **Category:** [Plants](https://www.snappit.app/explore/categories/plant)
- **Rarity:** Common
- **Danger:** 2/5 · Low
- **Snaps:** 9
- **Habitat:** Urban areas

![stinknet](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Oncosiphon_pilulifer_1DS-II_5277.jpg&width=800)

Photo: SAplants, CC BY-SA 4.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Oncosiphon_pilulifer_1DS-II_5277.jpg)

## Appearance

The stinknet has many slender, branching stems and finely dissected, fern-like leaves. Its bright yellow, ball-shaped flower heads are small, appearing individually at stem tips, making it look like tiny golden pom-poms.

## Taxonomy

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

## Interesting facts

- Its strong, unpleasant scent helped give it the funny name 'stinknet'!
- One tiny stinknet plant can produce thousands of seeds to grow a huge family!
- This plant is an invasive species, meaning it quickly takes over new lands!
- Touching this plant can sometimes make your skin feel itchy or give you a small rash!

## Special abilities

- **Stinky Shield:** Stinknet can produce strong-smelling chemicals that warn away grazing animals, helping it defend itself.
- **Seed Sprinter:** Stinknet has tiny, lightweight seeds that travel easily by wind and water, allowing it to spread quickly.
- **Tough Survivor:** Stinknet can grow in poor soils and dry conditions, making it super adaptable and tough to remove.

## Measurements & details

- **Height:** 10-60 cm
- **Spread:** 10-40 cm
- **Flower Size:** 0.5-1 cm
- **Bloom Season:** Late winter to summer
- **Edible:** No
- **Toxicity:** Moderate
- **Lifecycle:** Annual
- **Pollination Method:** Insect

## Ecological connections

- **Eats:** European honey bee (*Apis mellifera*) — Collects nectar and pollen from flowers.
- **Eats:** Domestic goat (*Capra hircus*) — Goats can graze this plant, but it's toxic in large amounts.
- **Eats:** Stinknet weevil (*Smicronyx oncolabii*) — Larvae feed on seeds and flowers as a biocontrol.

## Traits

- [Aromatic](https://www.snappit.app/explore/traits/aromatic): Aromatic plants produce and emit fragrant volatile organic compounds, often for defense or to attract pollinators.
- [Flowering](https://www.snappit.app/explore/traits/flowering): Flowering plants are any plants that produce flowers as part of their reproductive cycle.
- [Medicinal](https://www.snappit.app/explore/traits/medicinal): Medicinal plants possess chemical compounds that can be used for therapeutic purposes to treat illnesses or maintain health.
- [Edible](https://www.snappit.app/explore/traits/edible): Edible plants are those parts of a plant that are considered safe for human consumption.
- [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.
- [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.
- [Urban Friendly](https://www.snappit.app/explore/traits/urban-friendly): This habitat trait indicates species that can coexist with humans in urban and suburban environments, utilizing man-made structures and green spaces.
- [Invasive](https://www.snappit.app/explore/traits/invasive): Invasive species are non-native organisms that cause harm to the environment, economy, or human health.

## Collections

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

## Safety

**Danger:** 2/5 · Low

If you see stinknet, it's best not to touch it too much because of its strong smell.

## Frequently Asked Questions

### How to identify stinknet?

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 stinknet?

10-60 cm

### How wide does stinknet spread?

10-40 cm

### How big are the flowers on stinknet?

0.5-1 cm

### When does stinknet bloom?

Late winter to summer

### Is stinknet edible?

No

### Is stinknet toxic?

Moderate

### What is stinknet's lifecycle?

Annual

## Where to spot

- [Mesa Grande](https://www.snappit.app/guides/places/mesa-grande) — Arizona, US · Historic Site
- [Cartwright Elementary School District](https://www.snappit.app/guides/places/cartwright-elementary-school-district) — Arizona, US · Campus
- [Phoenix Indian School](https://www.snappit.app/guides/places/phoenix-indian-school) — Arizona, US · Campus
- [Phoenix Union High School](https://www.snappit.app/guides/places/phoenix-union-high-school) — Arizona, US · Campus
- [Wildlife World Zoo](https://www.snappit.app/guides/places/wildlife-world-zoo) — Arizona, US · Zoo

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

## 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: [Stinknet: Characteristics, Facts & Places to See — Snappit](https://www.snappit.app/explore/stinknet)
