Canada

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

Cryptogramma stelleri (S.G. Gmel.) Prantl:
Japan (Asia)
Russian Federation (Asia)
China (Asia)

Global Range: Nearly circumpolar. Northern North America, Europe, Asia. Seward Peninsula east through central AK to westcentral Yukon and the Mackenzie, disjunctly eastward to Alberta and south mountains. (B74WEL01AKUS, B80POR01AKUS). Alaska to Labrador south to Oregon, Montana, Iowa, Michigan, and West Virginia, with disjunct populations in Wyoming, New Mexico, and Utah.

Stems creeping, few branched, slender, 1--1.5 mm diam., succulent, brittle; scales colorless, sparse, transparent-reticulate, ovate, 0.4 × 0.3 mm; stems shriveling in 2d year following emergence of leaves. Leaves scattered along stems, ephemeral (dying by late summer), soon shed; sterile leaves erect, 3--15 cm; fertile leaves erect, 5--20 cm; petioles, costae, and costules glabrous. Petiole dark brown in proximal 1/2 or less, becoming greenish distally, ca. 1 mm wide when dry, only slightly furrowed, glabrous. Blade broadly lanceolate to ovate-lanceolate, all pinnate-pinnatifid to 2-pinnate, herbaceous to membranous, thin; hydathodes superficial, often poorly developed or absent. Segments of sterile leaves ovate-lanceolate to fan-shaped, distal 1/2--1/3 shallowly lobed; segments of fertile leaves horizontal to ascending, often only partially differentiated from sterile leaves, lanceolate to linear, 8--25 × 2--4 mm; margins reflexed, forming continuous false indusia. Sporangia often in discrete sori. 2 n = 60.

Pteris stelleri S. G. Gmelin, Novi Comment. Acad. Sci. Imp. Petrop. 12: 519. 1768

Comments: Moist wooded slopes and rock outcrops,

New growth produced in spring, dying by late summer. Sheltered calcareous cliff crevices and rock ledges, typically in coniferous forest or other boreal habitats; 0--3000 m; Alta., B.C., N.B., Nfld., N.W.T., N.S., Ont., P.E.I., Que., Yukon; Alaska, Colo., Conn., Ill., Iowa, Maine, Mass., Mich., Minn., Mont., Nev., N.H., N.J., N.Y., Oreg., Pa., Utah, Vt., Wash., W.Va., Wis., Wyo.; Europe in ne former Soviet republics; Asia.

Note: For many non-migratory species, occurrences are roughly equivalent to populations.

Estimated Number of Occurrences: 81 to >300

Comments: More than thirty collections in Canada. Very widespread, nearly circumpolar distribution. Mickel says frequent in northern North America, Europe, and Asia.

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 2
Species: 2
Species With Barcodes: 1

Canada

Rounded National Status Rank: N4 - Apparently Secure

United States

Rounded National Status Rank: NNR - Unranked

Rounded Global Status Rank: G5 - Secure

Reasons: This species is extremely widespread, with a high number of occurrences, although its abundance may not be great at any single ocurrence.

Comments: Human disturbance is a low-level threat, as a population occurs along the trail to a highly-used cave. (Southern Appalachian Species Viability Project 2002).