Non-native Plants

Chinese Raspwort

Gonocarpus chinensis

USDA symbol: GOCH

perennial forb

Hawaii: non-native, naturalized
Lower 48 states: non-native, naturalized

If you’ve stumbled across the name Chinese raspwort while browsing plant databases or wandering through naturalized areas in California or Hawaii, you might be wondering what exactly this modest little plant is all about. Scientifically known as Gonocarpus chinensis, this perennial forb is one of those under-the-radar species that quietly ...

Chinese Raspwort: A Little-Known Non-Native Groundcover

If you’ve stumbled across the name Chinese raspwort while browsing plant databases or wandering through naturalized areas in California or Hawaii, you might be wondering what exactly this modest little plant is all about. Scientifically known as Gonocarpus chinensis, this perennial forb is one of those under-the-radar species that quietly goes about its business without much fanfare.

What is Chinese Raspwort?

Chinese raspwort is a low-growing perennial forb, which is just a fancy way of saying it’s a non-woody herbaceous plant that comes back year after year. Unlike shrubs or trees, this plant lacks significant woody tissue and keeps its growing points (those crucial buds that ensure next year’s growth) at or below ground level. It’s a member of the water milfoil family, though don’t let that fool you into thinking it’s purely aquatic.

Native Status and Distribution

Here’s where things get interesting – Chinese raspwort isn’t actually native to North America. As its common name suggests, this plant originally hails from Asia. However, it has established itself as a naturalized resident in both California and Hawaii, where it reproduces on its own and persists without human intervention.

  • Species observed
  • No observations

While it’s considered non-native, Chinese raspwort isn’t currently classified as invasive or noxious in these regions, meaning it’s not actively causing ecological harm or outcompeting native species in problematic ways.

Growing Characteristics and Habitat

One of the more notable things about Chinese raspwort is its flexibility when it comes to moisture. In Hawaii, it’s classified as facultative in wetland status, which means it’s equally happy in wet or dry conditions – a pretty handy trait for a plant trying to make it in diverse environments.

This adaptability likely contributes to its ability to establish itself in various habitats, from wetland edges to drier upland areas.

Should You Grow Chinese Raspwort?

Here’s the thing about Chinese raspwort – while it’s not causing ecological problems, there’s also not a compelling reason to actively seek it out for your garden. With limited information available about its ornamental value, growth habits, or care requirements, it falls into that category of plants that exist rather than plants you really want.

Native Alternatives to Consider

If you’re interested in low-growing groundcovers or plants that can handle variable moisture conditions, consider these native alternatives instead:

  • For California gardens: Native sedges, wild strawberry (Fragaria species), or native mint species
  • For Hawaiian gardens: Native ferns, indigenous grasses, or endemic groundcovers appropriate to your specific island and elevation

The Bottom Line

Chinese raspwort represents one of those botanical curiosities that reminds us how plants move around the world and establish themselves in new places. While it’s not problematic enough to warrant removal efforts, it’s also not remarkable enough to warrant cultivation. If you encounter it in the wild, you can appreciate it as an example of plant adaptability, but for your garden, you’ll probably find more rewarding options among your region’s native flora.

Remember, when choosing plants for your landscape, native species typically offer the best benefits for local wildlife, require less maintenance once established, and contribute to the ecological integrity of your region. Your local native plant society or extension office can help you discover the wonderful world of plants that truly belong in your area.

Gonocarpus chinensis is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Gonocarpus chinensis is also known as:

Haloragis chinensis | USDA symbol: HACH5

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Wetland Status

The rule of seasoned gardeners and landscapers is to choose the "right plant for the right place" — matching plants to their ideal growing conditions, so they'll thrive with less care and fewer inputs. But the simplicity of this catchphrase conceals how tricky plant selection can be if you don't have the right information. While tags on nursery plants list watering requirements, there's more to the story.

Knowing a plant's wetland status can simplify the process by revealing the interaction between plants, water, and soil. You might be surprised to learn that popular landscape plants are wetland species! And what may be a wetland plant in one area, in another it might thrive in drier conditions. The table below gives insight into the preferred growing conditions of this plant throughout its geographical distribution.

Region
Preferred Habitat

Hawaii ()

Facultative
Wetland Glossary
Obligate Wetland
Facultative Wetland
Facultative
Facultative Upland
Obligate Upland
Almost always occurs in wetlands
Usually occurs in wetlands but may occur in non-wetlands
Can occur in wetlands and non-wetlands
Usually occurs in non-wetlands but may occur in wetlands
Almost never occurs in wetlands

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Subclass: Rosidae
Order: Haloragales
Family: Haloragaceae R. Br. - Water Milfoil family
Genus: Gonocarpus Thunb. - raspwort

Species: Gonocarpus chinensis (Lour.) Orchard - Chinese raspwort

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA