WHERE’S WILDLIFE • FERN & HORSETAIL FIELD GUIDE

Glade Fern

Homalosorus pycnocarpos

Also known as Diplazium pycnocarpon or Athyrium pycnocarpon.

Long, narrow fronds carry rows of slender, pointed leaflets, giving this woodland fern a graceful, open outline.

Glade Fern. Select the photo to open the gallery.

NATIVE • NORTH AMERICA

At a glance

Plant group Fern
Life cycle Perennial
Reproduction Spores
Habitat Rich, moist deciduous woods

Sightings map

Explore reported observations. Sightings are not a complete range map.

How to recognize it

Key identification clues

  • Fronds are once divided into long, narrow, pointed pinnae.
  • Leaflet margins are nearly smooth.
  • Long linear sori follow the veins on the undersides of fertile leaflets.

Where and when to look

Look in rich shaded woods with moist soil. Whole-frond shape and the underside of mature fertile leaflets are useful identification views.

Compare similar plants

Christmas Fern has a conspicuous basal lobe on each leaflet. Glade Fern has slender leaflets and elongated sori rather than the rounded sori confined to the fertile tip of Christmas Fern.

A closer look

A single row of divisions

Each blade is divided once into separate leaflets, rather than repeatedly divided into a lacy blade.

Linear sori

Sori are groups of spore-producing structures. On Glade Fern they form elongated lines along the leaflet veins.

Woodland setting

The photographs show fronds among leaf litter and fallen logs. Use habitat as supporting context alongside leaflet and spore characters.

Field photographs

9 selected field photographs. Select any image to enlarge it and browse the slideshow. Use Load more photos to reveal the remaining images.

Range & habitat

A fern of rich deciduous forests in eastern North America, including parts of the Midwest.

Explore related content

Sources & further reading

Field photographs: Where’s Wildlife.

Comments & Identification Feedback

Spotted a possible identification error or have an observation to share? Leave a comment below. For an ID correction, include the photo filename and the features that support your suggestion.

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