Trevor James, AgResearchBasal sheaths are shiny and red or chestnut brown at their base
Kerry Bodmin, NIWA / Trevor James, AgResearchBasal sheaths are very dark red-purple to black or dull brown at their base
Trevor James, AgResearchFlower heads have a cluster 10 mm or less in diameter, often with smaller clusters above
Trevor James, AgResearchStems are less than 1.5 mm in diameter
Trevor James, AgResearchBasal sheaths are dark purple, or red-purple to black
Arthur Haines, New England Wild Flower Society / Trevor James, AgResearchLeaves have prominent, ear-like membranes
Trevor James, AgResearchLeaves lack prominent, tongue-like auricles
Trevor James, AgResearchFlowers are clustered into one or more heads
Trevor James, AgResearchLeaves lack a prominent, ear-like membrane
Trevor James, AgResearchCapsules are brown
Trevor James, AgResearchMany (more than 5) flower heads, which appear in clusters
Trevor James, AgResearchPith in stems is continuous
