North America Native Plant

Pineland Horseweed

Botanical name: Laennecia schiedeana

USDA symbol: LASC3

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Conyza schiedeana (Less.) Cronquist (COSC3)  âš˜  Erigeron schiedeanus Less. (ERSC10)  âš˜  Leptilon integrifolium Wooton & Standl. (LEIN8)   

Pineland Horseweed: A Humble Native Wildflower for Low-Maintenance Gardens Meet pineland horseweed (Laennecia schiedeana), a delicate annual wildflower that’s been quietly thriving in the American Southwest long before ornamental gardens became trendy. While it might not win any beauty contests against flashy hybrid flowers, this unassuming native has some seriously ...

Pineland Horseweed: A Humble Native Wildflower for Low-Maintenance Gardens

Meet pineland horseweed (Laennecia schiedeana), a delicate annual wildflower that’s been quietly thriving in the American Southwest long before ornamental gardens became trendy. While it might not win any beauty contests against flashy hybrid flowers, this unassuming native has some seriously impressive qualities that make it worth considering for your landscape.

What Is Pineland Horseweed?

Pineland horseweed is a native annual forb—basically a soft-stemmed plant that completes its entire life cycle in one growing season. As a member of the aster family, it produces small, daisy-like flowers that may seem modest at first glance but play an important role in supporting local wildlife. You might also see this plant referenced in older botanical texts under names like Conyza schiedeana or Erigeron schiedeanus, but don’t let the synonym shuffle confuse you—they’re all the same helpful little wildflower.

Where Does It Call Home?

This hardy native has made itself at home across Arizona, Colorado, and New Mexico, where it’s perfectly adapted to the challenging conditions of the American Southwest. Its natural range extends into northern Mexico, making it a true child of the desert borderlands.

Why Consider Pineland Horseweed for Your Garden?

Before you scroll past this humble plant in favor of showier options, consider these compelling reasons to give it a chance:

  • Ultimate low maintenance: Once established, it basically takes care of itself
  • Drought champion: Thrives with minimal water, perfect for water-wise landscapes
  • Pollinator magnet: Those small flowers are bee and beneficial insect magnets
  • Self-seeding wonder: Plants itself year after year with no help from you
  • Native credentials: Supports local ecosystems and wildlife

Growing Conditions and Care

Pineland horseweed is refreshingly undemanding when it comes to growing conditions. This tough little native prefers:

  • Sunlight: Full sun exposure
  • Soil: Well-draining soils (clay, sand, or rocky conditions are all fine)
  • Water: Drought tolerant once established; actually prefers dry conditions
  • Climate zones: Thrives in USDA zones 4-9

The beauty of growing this native is that it’s adapted to tough conditions. Over-watering or rich, fertile soil can actually cause problems, making this plant leggy or prone to disease. Think benign neglect rather than pampered princess.

How to Grow Pineland Horseweed

Getting pineland horseweed established in your garden is surprisingly straightforward:

  • Seeding: Direct sow seeds in fall or early spring
  • Spacing: Scatter seeds naturally—they’ll find their own perfect spots
  • Germination: Seeds need light to germinate, so barely cover or leave on soil surface
  • Watering: Water lightly until germination, then reduce gradually
  • Maintenance: Minimal—just let nature do its thing

As an annual, individual plants will complete their life cycle in one season, but if you let them go to seed, you’ll have new plants appearing the following year. It’s like having a self-renewing wildflower subscription!

Perfect Garden Companions

Pineland horseweed works beautifully in:

  • Native plant gardens and prairie restorations
  • Xeriscape and drought-tolerant landscapes
  • Wildflower meadows and naturalized areas
  • Rock gardens and desert-themed landscapes
  • Low-maintenance border edges

Wildlife and Pollinator Benefits

Don’t let the small flowers fool you—pineland horseweed is a pollinator powerhouse. Native bees, beneficial wasps, and other small pollinators flock to these flowers for nectar and pollen. The seeds also provide food for birds, making this humble plant a valuable contributor to your local ecosystem.

The Bottom Line

Pineland horseweed might not be the star of your garden, but it’s definitely the reliable supporting actor that makes everything else look better. If you’re looking for a truly low-maintenance native plant that supports pollinators, requires virtually no care, and helps create authentic southwestern landscapes, this modest wildflower deserves a spot in your garden. Plus, there’s something deeply satisfying about growing plants that have been thriving in your area for thousands of years—no fuss, no drama, just quiet resilience.

Pineland Horseweed

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

Laennecia Cass. - horseweed

Species

Laennecia schiedeana (Less.) G.L. Nesom - pineland horseweed

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