Trevor James, AgResearchLeaves are tall and round, like flowering stems
Trevor James, AgResearchFlower head has a single dense cluster or, rarely, two clusters
Trevor James, AgResearchStems are clearly ridged
Tasmanian Herbarium, Threatened Species Section, Department of Primary Industries, Parks, Water and Environment, Tasmania / Trevor James, AgResearchStems are soft, green to yellow-green in colour, and 2 mm or less in diameter
Trevor James, AgResearch / Allan Herbarium, Landcare ResearchFlowers are loosely clustered or solitary
Trevor James, AgResearchPith is cobwebby
Allan Herbarium, Landcare Research / Kerry Bodmin, NIWALower branches point upwards
Trevor James, AgResearchPith in stems is interrupted or lacking
Trevor James, AgResearchFlower heads are open or have a cluster 10 mm or more in diameter
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
