Interrupted Fern


Interrupted Fern (Osmunda claytoniana)

Identification:

During early spring growth, it is difficult to distinguish the interrupted fern from the cinnamon fern unless there are fronds left over from the previous year. Both have woody bases and large, pale green fronds. It is one of the earliest ferns to emerge in the spring, arising from a white, cottony ball that was formed the previous fall. As the plant grows, the fertile leaflets appear in the middle of the frond (giving the plant its “interrupted” name). Once the spores mature, the fertile parts wither and fall off, leaving an empty area in the middle of each frond.

 

Propagation:

Like all the ferns, interrupted ferns can be grown from spores, but it is much easier to transplant them, using the same cautions as described for previous ferns. Neither the interrupted nor the cinnamon spread as rapidly as the ostrich fern, but as a plant matures and dies out, a circle of young ones have usually grown up around it. Some of these offspring can be carefully removed.

Habitat:

This fern can often be seen growing with the cinnamon fern. It tolerates much the same conditions, preferring shaded woodlands with moist, rich soil. The interrupted fern does not establish itself quickly, so if habitat is destroyed, it will be slow to return. That’s why some judicious transplanting can be useful to help it return to an area.

Upcoming Events

Oct
3
Sat
9:00 am SWE Woodland Ecology I: Introduc...
SWE Woodland Ecology I: Introduc...
Oct 3 @ 9:00 am – 4:00 pm
Woodland Ecology I: Introduction to Forest Stewardship This course helps landowners gain the knowledge and skills they need to enjoy, improve and manage their own woodlot whether it be creating better access, harvesting wood or
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11
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2:00 pm Autumn in the Forest
Autumn in the Forest
Oct 11 @ 2:00 pm – 3:00 pm
A walk along the trails of Macphail Woods, looking at both plants and animals. This is a great outing for people of all ages.
Nov
7
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9:00 am SWE Basic Chainsaw I: Safety and...
SWE Basic Chainsaw I: Safety and...
Nov 7 @ 9:00 am – 4:00 pm
Basic Chainsaw I: Safety and Felling Spring Session: Saturday, April 11th Fall Session: Saturday,November 7th When trying to manage a forest, being informed about the specific composition of species, soils, water and light is a
Nov
8
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9:00 am SWE Basic Chainsaw II: Maintenan...
SWE Basic Chainsaw II: Maintenan...
Nov 8 @ 9:00 am – 4:00 pm
Basic Chainsaw II: Maintenance and Felling Spring Session: Sunday, April 12th Fall Session: Sunday,November 8th This course will continue to build on skills learned in Basic Chainsaw I. The morning will be devoted to learning

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