# Weedy Seadragon (*Phyllopteryx taeniolatus*)

> The weedy seadragon (Phyllopteryx taeniolatus) is Australia's official aquatic emblem in some states — a colourful seahorse relative of southern kelp reefs from New South Wales to Tasmania and Western Australia. Males brood eggs on the tail; adults reach about 40 cm and are listed Least Concern but fully protected.

- **Category:** Fish
- **Conservation status (IUCN):** Least Concern
- **Range:** Temperate reefs of southern Australia from New South Wales to Tasmania and Western Australia.
- **Canonical page:** https://globalanimalguide.org/animals/weedy-seadragon/
- **Last reviewed:** 2026-07-16

## Scientific classification

- **Kingdom:** Animalia
- **Phylum:** Chordata
- **Class:** Actinopterygii
- **Order:** Syngnathiformes
- **Family:** Syngnathidae
- **Genus:** Phyllopteryx

## Facts at a glance

| Attribute | Value |
| --- | --- |
| Scientific name | Phyllopteryx taeniolatus |
| Diet | Carnivore (small crustaceans) |
| Habitat | Kelp beds and rocky reefs |
| Lifespan | Around 8 years in the wild (varies by population and captivity). |
| Weight | About 0.15 kg typical adult mass (sex and region vary). |
| Top speed | Up to roughly 2 km/h when moving at speed. |
| Conservation status | Least Concern (IUCN) |

## Weedier, not leafier

Fewer cascading flaps than leafy seadragons, but striking purple, blue, and orange colours. They hover in kelp using minute fins and are more often seen by divers than their leafy cousins.

## Crustaceans among kelp

Diet is small crustaceans and other planktonic prey sucked through a tubular snout. Across its range it is tied to kelp beds and rocky reefs, and field accounts emphasise this species’ distinctive ecology rather than generic habitat labels.

## Temperate Australian reefs

Kelp beds and rocky reefs of southern Australia from New South Wales to Tasmania and across to Western Australia. Across its range it is tied to kelp beds and rocky reefs, and field accounts emphasise this species’ distinctive ecology rather than generic habitat labels.

## Protected Least Concern

IUCN Least Concern with a wider distribution than leafy seadragons, yet Australian law protects them from collection; kelp loss from warming seas is a rising concern.

## Frequently asked questions

### How do weedy and leafy seadragons differ?

Leafy seadragons have more elaborate leaf-like appendages; weedies show bolder purple-orange colour and fewer flaps.

### Is the weedy seadragon Australia's marine emblem?

It is a celebrated Australian endemic and an official emblem in some jurisdictions; leafy seadragons share similar cultural status.

### Do male weedy seadragons carry eggs?

Yes — eggs are brooded on the male's tail until they hatch.

### Are weedy seadragons endangered?

Listed Least Concern, but legally protected and sensitive to kelp habitat loss.

### Where do weedy seadragons live?

Temperate reefs of southern Australia including Tasmania. Native range summary: Temperate reefs of southern Australia from New South Wales to Tasmania and Western Australia.

---
Source: Global Animal Guide (https://globalanimalguide.org/animals/weedy-seadragon/). Licensed CC BY-NC 4.0 — free for non-commercial reuse with attribution.