Dig deeper at SERNEC, a consortium of southeastern herbaria.
See herbarium specimens at the Atlas of Florida Vascular Plants
Read about Osmundastrum and Osmunda from Alan Weakley and the Southern Appalachian Botanical Society.
Learn more about Osmundastrum from the Vascular Plants of North Carolina.
Monilophytes (ferns): Leptosporangiate Ferns (true ferns): Osmundales
WEAKLEY'S FLORA (11/30/12):
Osmundastrum cinnamomeum
FAMILY
Osmundaceae
INCLUDING
PLANTS NATIONAL DATABASE:
Osmunda cinnamomea var. cinnamomea
FAMILY
Osmundaceae
INCLUDING
PLANTS National Database
Osmunda cinnamomea var. glandulosa
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 007-01-001:
Osmunda cinnamomea
FAMILY
Osmundaceae
COMMON NAME:
Cinnamon Fern
Click or hover over the thumbnails to see larger pictures.
Emily B. Sessa ebsocinnamomea_8596
April
Fiddleheads' silvery-white hairs turn cinnamon-brown as frond expand, per Peterson Field Guide to Ferns of Northeastern and Central North America.
Jim Fanning jcf_cinnamonfern
April Pickens County SC
SC Botanical Garden
Sterile fronds 20-60" long or more, mostly erect or arching, per Peterson Field Guide to Ferns of Northeastern and Central North America.
Emily B. Sessa ebsocinnamomea_9359
May
Fiddleheads large and densely covered with silvery-white hairs, per Peterson Field Guide to Ferns of Northeastern and Central North America.
Emily B. Sessa ebsocinnamomea_9445
May
Rachis smooth, green; semi-grooved in front, per Peterson Field Guide to Ferns of Northeastern and Central North America.
Emily B. Sessa ebsocinnamomea_9452
May
Only Cinnamon Fern has tan tufts of wool at pinnae bases ("hairy armpits"), per Peterson Field Guide to Ferns of Northeastern and Central North America.
COMPARE
armpits of Cinnamon and Interrupted Fern
JK Marlow jkm0505k_36
May Haywood County NC
Corneille Bryan Native Garden
Fertile leaves brown, narrower & shorter than the sterile, per Vascular Flora of the Carolinas.
JK Marlow jkm100515_041
May Henderson County NC
Pisgah National Forest: Pisgah Ranger District
Cinnamon Fern on the left, Royal Fern on the right
JK Marlow jkm100515_053
May Henderson County NC
Pisgah National Forest: Pisgah Ranger District
Stipe covered with cinnamon wool at first, later smooth and green, per Peterson Field Guide to Ferns of Northeastern and Central North America.
JK Marlow jkm100515_090
May Henderson County NC
Pisgah National Forest: Pisgah Ranger District
Fertile fronds bright green at first, soon turning cinnamon-brown, per Peterson Field Guide to Ferns of Northeastern and Central North America.
JK Marlow jkm100606_137
June Greenville County SC
Chandler Heritage Preserve
Tufts of white to light brown hairs at base of pinna, per Peterson Field Guide to Ferns of Northeastern and Central North America.
JK Marlow jkm0509a_32b
September Transylvania County NC
DuPont State Forest
Leaflets deeply lobed (pinnate-pinnatifid); lobes rounded &slightly pointed, per Ferns of the Smokies.
COMPARE
pinnae of Cinnamon and Interrupted Fern