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COSEWIC Status Reports

  • COSEWIC Assessment and Status Report on the Carey’s Small Limestone Moss (Seligeria careyana) in Canada (2020-01-16)
    Carey’s Small Limestone Moss is a minute, delicate, yellow- to light-green moss that grows in loose colonies on limestone cliffs. The leaves are linear in outline and have a conspicuously long, slender, needle-like point that consists almost entirely of the costa or “midrib” of the leaf. The sporophytes, which are nestled among the tips of the leafy shoots, consist of a short, straight stalk supporting a spore-bearing capsule that is ovate when y ...
  • COSEWIC Assessment and Status Report on the Columbia Quillwort (Isoetes minima) in Canada (2020-01-16)
    Columbia Quillwort (Isoetes minima) is a perennial fern ally (pteridophyte) and has small, green, simple, quill-like leaves arising from a globose rootstock. The leaves are swollen at the base where the reproductive microspores and megaspores are contained within sporangia. Note: This COSEWIC assessment was received by the Minister on October 15th, 2018.
  • COSEWIC Assessment and Status Report on the Cryptic Paw Lichen (Nephroma occultum) in Canada (2020-01-16)
    Cryptic Paw Lichen, Nephroma occultum, is a rare lichen endemic to western North America. It is strongly associated with humid old-growth forests and is characterized by a yellowish, greenish, or bluish-grey upper surface with net-shaped ridges, and a hairless tan to sometimes blackish lower surface. Thalli are commonly 2 to 7 cm broad with rounded lobes 4 to 12 mm wide. It produces asexual propagules called soredia along the margins and the ridg ...
  • COSEWIC Assessment and Status Report on the Dalton’s Moss (Daltonia splachnoides) in Canada (2020-01-16)
    Dalton’s Moss (Daltonia splachnoides) is a small, glossy yellow-green to bronze-coloured moss with reddish stems and linear-lanceolate leaves. The leaves are untoothed, have a yellowish border, and a ridged costa (‘midrib’) that almost reaches the leaf tip. The sporophytes consist of a red stalk and a small, brown, upright, cylindric-ovoid capsule with a short neck and a contracted base. The highly distinctive calyptra (hood-like structure coveri ...
  • COSEWIC Assessment and Status Report on the White-rimmed Shingle Lichen (Fuscopannaria leucosticta) in Canada (2020-01-16)
    White-rimmed Shingle Lichen, Fuscopannaria leucosticta, is a rare lichen that grows on trees in wet forests of eastern Canada. The lichen consists of many small, overlapping lobes (like shingles). These lobes typically have a dark olive-grey colour on their upper surface, and a noticeable white rim on the edges. Mature colonies produce many brownish-coloured discs (fruiting bodies) on their upper surface. Note: This COSEWIC assessment was receiv
  • COSEWIC Rapid Review of Classification on the Paddlefish (Polyodon spathula) in Canada (2020-01-16)
    This fish, once found in the Great Lakes, was never common in the Canadian portion of its range. The species has not been observed in Canadian waters since the early 1900s despite extensive sampling and being a large distinctive fish that is easily recognizable. Note: This COSEWIC assessment was received by the Minister on October 15th, 2018.
  • COSEWIC Status Appraisal Summary on the Frosted Elfin (Callophrys irus) in Canada (2020-01-16)
    This butterfly occurred in one restricted area of oak savanna in southern Ontario. It was last recorded in 1988 and has not been seen since despite repeated surveys. Note: This COSEWIC assessment was received by the Minister on October 15th, 2018.
  • COSEWIC Status Appraisal Summary on the Karner Blue (Plebejus samuelis) in Canada (2020-01-16)
    This butterfly occurred within a restricted range in oak savannah and woodland habitats in southern Ontario. Its population decline and degradation of its habitat are well documented. The species has not been seen since 1991 despite ongoing search efforts. Note: This COSEWIC assessment was received by the Minister on October 15th, 2018.
  • COSEWIC Assessment and Status Report on the Dwarf Hesperochiron (Hesperochiron pumilus) in Canada (2020-01-14)
    Dwarf Hesperochiron is a perennial, herbaceous plant that grows up to 10 cm tall from a slender stem connected to smaller offshoots by thin, fragile rhizomes. The generally hairless simple leaves grow in a basal rosette. There are from one to eight solitary, showy flowers per plant. The flowers are 1 to 3 cm wide, 5-lobed, with white petals and hairy, yellow throats. There are often striking purple markings on the petals. The fruits are oval caps ...
  • COSEWIC Assessment and Status Report on the Goldenseal (Hydrastis canadensis) in Canada (2019-12-20)
    Goldenseal is a herbaceous perennial that grows to 10 to 50 cm tall. It is characterized by its gnarled yellow rhizome (underground stem), which bears scars (left from annual stems) that look like the wax seals historically used to close letters (hence the name “Goldenseal”). The plant bears one to three leaves, each with five lobes. Plants were used as a traditional herbal medicine by Indigenous peoples in North America. Goldenseal is still a sp ...
  • COSEWIC Assessment and Status Report on the Hairy Paintbrush (Castilleja tenuis) in Canada (2019-12-20)
    Hairy Paintbrush is a delicate annual plant, 4.5 to 30 (rarely up to 52) cm tall, arising from a slender taproot or branched root system. Stems are covered with a mixture of short hairs and soft spreading long hairs. Lower leaves are linear to lanceolate; upper leaves are 0 to 3 (rarely 5) lobed; both leaf surfaces are coarsely hairy. Flowers are arranged in a terminal spike, with green lanceolate to ovate floral bracts with pointed tips. The whi ...
  • COSEWIC Assessment and Status Report on the Hudsonian Godwit (Limosa haemastica) in Canada (2019-12-20)
    Hudsonian Godwit is a large, long-legged shorebird with a long, slightly upturned bill. The species exhibits sexual dimorphism in both size and plumage, with females larger and heavier than males and paler overall in breeding plumage. Males have distinctive red chest colouring during the breeding season, while females are a lighter rufous colour. Both males and females are greyish-brown in non-breeding plumage. Note: This COSEWIC assessment was ...
  • COSEWIC Assessment and Status Report on the Sei Whale (Balaenoptera borealis), Atlantic population, in Canada (2019-12-20)
    The Sei (pronounced “say”) Whale (Balaenoptera borealis) is a large, slim baleen whale. The name is an anglicization of “sejhval”, given by Norwegian whalers because its arrival in Scandinavian waters coincided with the “seje”, or pollock. The species is grey in colour, with a variable white region on its underside. These areas may appear mottled, with grey or white circular scars caused by various predators or parasites. Both the lower left and ...
  • COSEWIC Assessment and Status Report on the Sowerby’s Beaked Whale (Mesoplodon bidens) in Canada (2019-12-17)
    Sowerby’s Beaked Whale (Mesoplodon bidens) is a relatively small (4.5 to 5.5 m) beaked whale (Family Ziphiidae). It can vary from dark grey to light grey-white, often observed with long linear white scars, especially in males. Light speckling may also occur. Sowerby’s Beaked Whale is a member of one of the least known groups of large mammals (the Ziphiidae) and, together with the Northern Bottlenose Whale (Hyperoodon ampullatus),
  • COSEWIC Assessment and Status Report on the Vancouver Island Marmot (Marmota vancouverensis) in Canada (2019-12-17)
    Vancouver Island Marmot (Marmota vancouverensis) is a colonial marmot that is closely related to Hoary Marmot (M. caligata) and Olympic Marmot (M. olympus). It is notable for its chocolate brown fur, unique vocalizations, atypical skull characteristics, and highly social nature. It is one of only five endemic species of mammal in Canada. Note: This COSEWIC assessment was received by

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