Neoorthocaulis attenuatus
Marchantiophyta
Neoorthocaulis attenuatus (Scapaniaceae)
Trunk Pawwort
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Infrequent
Distinguishing Features
With stiffly erect and often tapering yellow green shoots up to 5 cm tall and 2 mm wide, N. attenuatus stands out in boulder and ledge rockscapes in which it occasionally dwells. Up close, the lateral leaves are predominantly 3-lobed, with sharp apices and sinuses that descend 1/3 of the way down the leaf. Underleaves are absent, as are cilia along the lateral leaf bases, but gemmae are often present and abundant along the leaves at the erect tips of the shoots.
Similar species
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Habitat
Tundra, bogs, peaty depressions, rarely on shaded rock, arctic-alpine
Associated species
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