North America Native Plant

Obtuse Willow

Botanical name: Salix ×obtusata

USDA symbol: SAOB

Life cycle: perennial

Habit: tree

Native status: Native to Canada  

Obtuse Willow: A Mysterious Canadian Native Worth Knowing If you’re a plant enthusiast who loves a good botanical mystery, the obtuse willow (Salix ×obtusata) might just capture your imagination. This perennial native willow is one of those delightfully elusive species that keeps even seasoned gardeners on their toes. What Makes ...

Obtuse Willow: A Mysterious Canadian Native Worth Knowing

If you’re a plant enthusiast who loves a good botanical mystery, the obtuse willow (Salix ×obtusata) might just capture your imagination. This perennial native willow is one of those delightfully elusive species that keeps even seasoned gardeners on their toes.

What Makes Obtuse Willow Special?

The obtuse willow is a native Canadian species, and that little × symbol in its scientific name tells us something interesting—this is actually a natural hybrid willow. Like a botanical puzzle piece, it represents the fascinating world of plant evolution and adaptation happening right in nature’s backyard.

Where You’ll Find This Native Beauty

This willow calls Quebec home, making it a true northern native. As a Canadian species, it’s adapted to the unique growing conditions of the northern landscape, though specific details about its exact habitat preferences remain somewhat of a mystery in horticultural circles.

Growth Characteristics

What we do know is that obtuse willow is a perennial woody plant that can develop into a tree form, typically growing over 13-16 feet in height under optimal conditions. Like many willows, it may also develop a multi-stemmed growth habit depending on environmental factors, potentially staying shorter than 13 feet in certain conditions.

Should You Grow Obtuse Willow?

Here’s where things get interesting (and a bit challenging). While obtuse willow is undoubtedly a legitimate native species deserving of our respect and conservation efforts, finding detailed growing information—or even finding the plant itself—can be quite the adventure.

The Challenge of Growing Rare Natives

If you’re determined to grow obtuse willow, you’ll need to:

  • Source plants responsibly from reputable native plant nurseries
  • Research general willow growing requirements as a starting point
  • Expect to do some experimental gardening
  • Connect with native plant societies or botanical experts who might have experience with this species

Alternative Native Willows to Consider

If you’re drawn to the idea of growing native willows but want something with more established growing guidelines, consider researching other native willow species in your region. Many willows offer excellent wildlife benefits, interesting seasonal appeal, and are generally easier to source and grow successfully.

The Bottom Line

Obtuse willow represents the wonderful diversity of our native plant heritage. While it may not be the easiest choice for beginning native gardeners, it reminds us that there’s still so much to discover and appreciate in the botanical world. Sometimes the most rewarding plants are the ones that challenge us to learn, explore, and connect with the broader community of plant enthusiasts and conservationists.

Whether you decide to embark on the obtuse willow growing adventure or simply appreciate it from afar, remember that every native species plays a valuable role in supporting local ecosystems and preserving our natural heritage.

Obtuse Willow

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Dilleniidae

Order

Salicales

Family

Salicaceae Mirb. - Willow family

Genus

Salix L. - willow

Species

Salix ×obtusata Fernald (pro sp.) [myricoides × pyrifolia] - obtuse willow

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