North America Non-native Plant

Balsam-leaf Calycera

Botanical name: Calycera balsamitifolia

USDA symbol: CABA22

Life cycle: perennial

Habit: forb

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

Balsam-Leaf Calycera: A Rare Non-Native Forb Worth Knowing About If you’ve stumbled across the name balsam-leaf calycera (Calycera balsamitifolia), you’re likely dealing with one of the more mysterious plants in North American flora. This little-known perennial forb has quietly made its home in Pennsylvania, though it remains largely under the ...

Balsam-Leaf Calycera: A Rare Non-Native Forb Worth Knowing About

If you’ve stumbled across the name balsam-leaf calycera (Calycera balsamitifolia), you’re likely dealing with one of the more mysterious plants in North American flora. This little-known perennial forb has quietly made its home in Pennsylvania, though it remains largely under the radar of most gardeners and botanists alike.

What Exactly Is Balsam-Leaf Calycera?

Balsam-leaf calycera is a perennial forb, which simply means it’s a soft-stemmed plant that comes back year after year without developing woody tissue like shrubs or trees. Think of it as an herbaceous perennial that keeps its growing points at or below ground level, helping it survive through seasons.

This plant belongs to the rather uncommon Calyceraceae family, and as its name suggests, it likely has leaves that resemble those of balsam plants in some way, though detailed descriptions of its appearance are surprisingly scarce in horticultural literature.

Where Does It Come From?

Here’s where things get interesting: balsam-leaf calycera isn’t native to North America. It’s what botanists call a non-native species that has somehow established itself and now reproduces on its own in the wild. Currently, it’s only documented as growing in Pennsylvania, making it quite the botanical rarity in our region.

Should You Grow Balsam-Leaf Calycera?

This is where we hit a bit of a roadblock. With so little information available about this plant’s growing requirements, appearance, and garden performance, it’s difficult to recommend it for home landscapes. Additionally, since it’s non-native and we don’t know its full ecological impact, there are some considerations to keep in mind:

  • Its growth habits and space requirements are largely unknown
  • We don’t know how it might interact with local ecosystems
  • Its ornamental value hasn’t been well documented
  • Growing conditions and care requirements are unclear

Better Alternatives for Your Garden

Since balsam-leaf calycera is both uncommon and non-native, you might want to consider some fantastic native Pennsylvania perennials instead. These local beauties will support your regional ecosystem while providing reliable garden performance:

  • Wild bergamot (Monarda fistulosa) – a pollinator magnet with fragrant foliage
  • Purple coneflower (Echinacea purpurea) – tough, drought-tolerant, and beloved by birds
  • New England aster (Symphyotrichum novae-angliae) – provides crucial late-season nectar
  • Wild columbine (Aquilegia canadensis) – delicate beauty for shade gardens

The Mystery Continues

Balsam-leaf calycera remains something of an enigma in the plant world. While it’s established itself in Pennsylvania, much about this species remains unknown to researchers and gardeners alike. Its story serves as a reminder that there’s still so much to discover about the plant world, even in our own backyards.

If you’re interested in supporting biodiversity in your garden, focusing on well-documented native species is usually your best bet. They come with the bonus of established growing information, proven ecological benefits, and the satisfaction of knowing you’re supporting local wildlife and plant communities.

Have you encountered any mysterious plants in your gardening adventures? Sometimes the most interesting discoveries are the ones that leave us with more questions than answers!

Balsam-leaf Calycera

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

Calycerales

Family

Calyceraceae R. Br. ex Rich. - Calycera family

Genus

Calycera Cav. - calycera

Species

Calycera balsamitifolia A. Rich. - balsam-leaf calycera

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