North America Native Plant

Celothelium Aciculiferum

Botanical name: Celothelium aciculiferum

USDA symbol: CEAC5

Habit: lichen

Native status: Native to North America  

Celothelium aciculiferum: A Mysterious North American Lichen If you’ve stumbled across the name Celothelium aciculiferum while exploring native plants, you might be wondering what exactly this species is and whether it belongs in your garden. Well, here’s the scoop: this isn’t your typical garden plant at all! Celothelium aciculiferum is ...

Celothelium aciculiferum: A Mysterious North American Lichen

If you’ve stumbled across the name Celothelium aciculiferum while exploring native plants, you might be wondering what exactly this species is and whether it belongs in your garden. Well, here’s the scoop: this isn’t your typical garden plant at all! Celothelium aciculiferum is actually a lichen – one of nature’s most fascinating partnerships between fungi and algae.

What Exactly Is a Lichen?

Before we dive into the specifics of Celothelium aciculiferum, let’s clear up what lichens actually are. Think of lichens as nature’s ultimate roommates – they’re composite organisms made up of fungi and algae (or sometimes cyanobacteria) living together in perfect harmony. The fungus provides structure and protection, while the algae does the photosynthesis to create food. It’s a win-win situation that’s been working for millions of years!

Meet Celothelium aciculiferum

This particular lichen species is native to North America, though specific details about its exact range and distribution are not well-documented in commonly available resources. Like many lichens, Celothelium aciculiferum tends to fly under the radar compared to flashier flowering plants, but that doesn’t make it any less interesting.

Is This Lichen Beneficial for Your Garden?

Here’s where things get interesting – and a bit different from typical gardening advice. Lichens like Celothelium aciculiferum aren’t something you plant or cultivate in the traditional sense. Instead, they’re indicators of environmental health that might naturally appear in your landscape if conditions are right.

Lichens can be beneficial to garden ecosystems in several ways:

  • They help break down rock and organic matter, contributing to soil formation
  • They can indicate good air quality in your area
  • They add subtle beauty and texture to natural landscapes
  • They provide habitat for tiny creatures and microorganisms

How to Identify Lichens in Your Space

Since specific identification details for Celothelium aciculiferum are limited in standard resources, here are some general tips for spotting lichens in your garden:

  • Look for crusty, leafy, or branching growths on rocks, tree bark, or soil
  • They often appear in shades of gray, green, yellow, orange, or even bright colors
  • They tend to grow slowly and persist for long periods
  • They’re most noticeable when moist, as they can appear to come alive after rain

Supporting Lichen Communities

Rather than trying to plant lichens, the best way to support species like Celothelium aciculiferum is to create conditions where they can naturally establish:

  • Minimize the use of chemicals and pesticides in your landscape
  • Maintain clean air quality around your property
  • Preserve natural surfaces like rocks and old trees where lichens can grow
  • Avoid disturbing areas where lichens have already established

The Bottom Line

Celothelium aciculiferum represents the hidden world of lichens that exists all around us. While you won’t find this species at your local nursery, appreciating and protecting the lichens that naturally occur in your landscape can be a rewarding part of native gardening. These remarkable organisms remind us that some of the most interesting plants in our gardens aren’t plants at all – they’re living partnerships that have mastered the art of cooperation.

If you’re interested in supporting North American native species in your garden, focus on well-documented native flowering plants, shrubs, and trees that provide clear benefits to pollinators and wildlife, while keeping an eye out for the fascinating world of lichens that might already be quietly thriving in your space.

Celothelium Aciculiferum

Classification

Group

Lichen

Kingdom

Fungi - Fungi

Subkingdom
Superdivision
Division

Ascomycota - Sac fungi

Subdivision
Class

Uncertain Ascomycota Class

Subclass
Order

Uncertain Ascomycota Order

Family

Uncertain Ascomycota Family

Genus

Celothelium A. Massal.

Species

Celothelium aciculiferum (Nyl.) Vain.

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