Monthly Archives: May 2018

Deer Fern, Blechnum spicant

Deer Fern                                          Chain Fern family–Blechnaceae

Blechnum spicant (L.) Sm.

(BLEK-num SPEE-kant)

Names:  Blechnum comes from a general Greek name for fern.  Spicant means spiked referring to the erect fertile fronds.  Other common names include: Hard Fern or Rough Spleenwort.  It also has been known as Struthiopteris spicant.

Relationships: There are about 150-220 species of Blechnum (generally known as Hard Ferns or Midsorus Ferns) throughout the world, most are from tropical regions in the southern hemisphere, with just a few in the temperate regions of both hemispheres.  This genus spans the globe from the southern-most fern species, B. penna-marina, from Cape Horn to arctic regions in Iceland and Norway.  A few Ecuadorean species reach tree stature growing up to 3 meters tall.  Only two other species occur in the mainland United States (in the Gulf States & Florida)—these and 5 additional species also occur in Puerto Rico.

Distribution of Deer Fern from USDA Plants Database

Distribution: Deer Fern is found in Europe, northern Asia, Japan and in western North America from southern Alaska to the central California coast; mostly west of the Cascades, but it also is reaches east to the Idaho panhandle.

 

 

 

 

 

 

 

 

 

 

 

Fertile fronds emerging vertically from the center of the more horizontal sterile fronds.

Diagnostic Characters: Deer fern has two types of fronds: narrow, evergreen, once-pinnate (or deeply lobed), sterile leaves spread outward, growing 10-80 cm long; even narrower, taller (1-3 feet), fertile fronds grow erect, from the center, soon withering after spore dispersal.  The once-pinnate leaflets on the fertile fronds are much narrower and roll almost tube-like around the continuous sori.  Leaf stalks are a dark, purplish-brown, and grow from a short, thick rhizome.

Fertile fronds have edges that are rolled under.

 

 

 

 

 

 

 

 

 

 

Habitat: This species grows best in moist to wet forests and along streambanks. Wetland designation: FAC+, Facultative, it is equally likely to occur in wetlands or non-wetlands.

 

In the Landscape:  Hitchcock writes: Deer Fern “is a truly choice fern usable in many places in the garden, but so common as to have little appeal to most gardeners.”  That said, it is one of the best native ferns for landscapes, second only to Sword Fern.  Although at home in a woodland garden, it can adapt to many situations, given adequate shade and/or moisture. Deer Fern has also been used as a houseplant.

 

Use by People: The roots and young shoots were cooked and eaten as an emergency food; the young tender stems can also be peeled and the center portion eaten to relieve hunger; the leaves eaten to prevent thirst.  The leaflets have been chewed to treat cancer, lung disorders and stomach problems; and a decoction of the root to treat diarrhea.  The leaves were used medicinally on skin sores, which is said to have been learned by watching deer rub their antler stubs in this plant.  The fronds were also used to line pits for baking camas (along with Sword Fern) and have been used for bedding.

 

Use by wildlife:  Deer fern provides valuable forage for deer, Mountain Goat, Bighorn Sheep, elk, moose, and caribou.

Links:

USDA Plants Database

Consortium of Pacific Northwest Herbaria

WTU Herbarium Image Collection, Plants of Washington, Burke Museum

E-Flora BC, Electronic Atlas of the Flora of British Columbia

Jepson Eflora, University of California

Calphotos

Ladybird Johnson Wildflower Center

USDA Forest Service-Fire Effects Information System

Plants for a Future Database

Native American Ethnobotany, University of Michigan, Dearborn

Ostrich Fern, Matteuccia struthiopteris

Ostrich Fern                        USDA: The Wood Fern Family—Dryopteridaceae

                                        Newer classification: The Sensitive Fern Family—Onocleaceae

Matteuccia struthiopteris (L.) Todaro

(ma-TOO-kee-uh  stroo-thee-OP-ter-is)

Names: The genus is named after Carlo Matteucci an Italian physicist and pioneer in the study of bioelectricity.   Struthio is the ostrich genus; pteris means fern— the fronds resemble ostrich feathers.  It is also known as Shuttlecock Fern, because of the way the fronds grow in a clump, like the feathery tail of a badminton birdie!

Relationships:  Ostrich Fern is the only species in the genus Matteuccia.

Distribution of Ostrich Fern from USDA Plants Database

Distribution: It is found in many of the temperate regions in the northern hemisphere.  In North America, it is found throughout much of the northeast and across Canada; but only reaches the west coast in southern Alaska and British Columbia.  It is listed as rare, of special concern or vulnerable in Indiana, Rhode Island and New York.

 

 

 

Growth: Sterile, deciduous fronds grow to nearly 6 feet in moist, moderate climates.  In less than ideal conditions it is often much shorter, usually 1-5ft. (30-140cm). Ostrich Fern spreads by underground rhizomes to form new crowns and often grows in dense colonies, resistant to destruction by floodwaters.

Habitat: Ostrich Fern is hardy to extreme cold and is most often found in lowland or montane alluvial forests, riverbanks and sandbars.

Diagnostic Characters: The sterile, bright-green fronds grow nearly vertical in vase-like clusters.  They are broadest in the middle upper ¼ of the frond and are once-pinnate with deeply cut pinnae.  Brown, fertile fronds are shorter (60cm) and narrower, leaf tissue curling over the spore cases; they persist over winter, releasing spores in early spring.

In the Landscape: Ostrich Fern is a popular garden ornamental.  Although spectacularly beautiful in the early summer, it may start looking haggard later in the summer, depending on local conditions.  It prefers a moist, cool location protected from winds.  It is easily propagated by division.

Use by People: The fiddleheads are sometimes eaten raw, or cooked, most notably in Japan; the flavor is sometimes compared to asparagus.  As with all ferns, caution is advised, especially consuming raw parts.

Use by Wildlife: It is used as a food plant by the larvae of some moths.

Links:

USDA Plants Database

Consortium of Pacific Northwest Herbaria

E-Flora BC, Electronic Atlas of the Flora of British Columbia

Calphotos

Ladybird Johnson Wildflower Center

Plants for a Future Database

Native American Ethnobotany, University of Michigan, Dearborn