North America Non-native Plant

Hawkweed

Botanical name: Hieracium ×brachiatum

USDA symbol: HIBR3

Life cycle: perennial

Habit: forb

Native status: Non-native, reproduces and persists in the wild in the lower 48 states  

Hawkweed (Hieracium ×brachiatum): A Mysterious Hybrid Worth Understanding If you’ve stumbled across the name Hieracium ×brachiatum in your plant research, you’re looking at one of gardening’s more enigmatic characters. This particular hawkweed is a hybrid species—that little × symbol is your clue—and like many plant hybrids, it keeps its secrets ...

Hawkweed (Hieracium ×brachiatum): A Mysterious Hybrid Worth Understanding

If you’ve stumbled across the name Hieracium ×brachiatum in your plant research, you’re looking at one of gardening’s more enigmatic characters. This particular hawkweed is a hybrid species—that little × symbol is your clue—and like many plant hybrids, it keeps its secrets pretty well guarded.

What Exactly Is This Plant?

Hieracium ×brachiatum is a perennial forb, which is just a fancy way of saying it’s a soft-stemmed, non-woody plant that comes back year after year. As a member of the hawkweed family, it shares characteristics with its more well-known relatives, but being a hybrid makes it something of a botanical wild card.

The plant falls into the category of introduced species—meaning it’s not native to North America but has established itself here naturally. Think of it as an uninvited guest who decided to stick around and make themselves at home.

Where You’ll Find It

Currently, this particular hawkweed has been documented in New York state. Its limited distribution might suggest it’s either quite particular about where it grows or simply hasn’t had the chance to spread widely yet.

The Garden Dilemma

Here’s where things get tricky for gardeners. While we know this hawkweed is non-native, we don’t have clear information about whether it’s invasive, noxious, or particularly problematic. It’s like meeting someone at a party who seems nice enough, but you can’t quite figure out if they’re going to be a delightful addition to your friend group or cause drama later.

What We Don’t Know (And Why That Matters)

The frustrating truth about Hieracium ×brachiatum is that we’re missing some pretty important details:

  • Its specific growing requirements and preferences
  • How it behaves in different garden settings
  • What benefits (if any) it provides to pollinators and wildlife
  • Its potential to spread or become problematic
  • Proper care and maintenance needs

A Gardener’s Approach

Given the limited information available about this hybrid hawkweed, the wise gardener might want to pause before adding it to their landscape. While there’s no evidence it’s harmful, there’s also no compelling case for why you’d want to grow it over other, better-understood options.

If you’re drawn to the hawkweed aesthetic or looking for plants with similar characteristics, consider exploring native alternatives that offer known benefits to local ecosystems. Your local native plant society or extension office can point you toward indigenous species that might scratch the same gardening itch while supporting local wildlife.

The Bottom Line

Hieracium ×brachiatum remains something of a mystery in the gardening world. While it’s not flagged as invasive or noxious, the lack of comprehensive information about its garden behavior and ecological impact makes it a questionable choice for most gardeners. Sometimes the most responsible approach is to admire a plant’s uniqueness while choosing better-known natives for your own patch of earth.

If you do encounter this hawkweed in the wild, consider it a botanical curiosity worth noting—just maybe not worth bringing home.

Hawkweed

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Asterales

Family

Asteraceae Bercht. & J. Presl - Aster family

Genus

Hieracium L. - hawkweed

Species

Hieracium ×brachiatum Bethel. ex DC. [pilosella × piloselloides] - hawkweed

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