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Velvet Wallaby-grass
Rytidosperma pilosum
Rytidosperma pilosum is a species of true grass in the subfamily Danthonioideae. It is indigenous to Australia and naturalised in New Zealand and Hawaii. It was described as Danthonia pilosa in 1850 by Scottish botanist Robert Brown.
From the article Rytidosperma pilosum on Wikipedia (CC BY-SA), quoted section by section
Range & habitat
R. pilosum was identified as naturalized on Humu‘ula, Maui Island in Hawaii for the first time in 2025. It had been present there since 1932 but had been confused with other Rytidosperma species. It may have arrived within 12 accessions of Rytidosperma imported by the Hawaii Agricultural Experiment Station (HAES) from 1913–1937, or in seeds imported accidentally with hay.
Wikipedia: “Distribution”
What it does
The rust fungus Uromyces danthoniae, a species found that grows parasitically on the leaves of several Rytidosperma species in New Zealand and Australia, infects Rytidosperma pilosum. It forms dense clusters of orange-brown aecidia on both surfaces of the leaf. It is also a host of Sphaerodothella danthoniae, a sac fungus that produces black, shiny leaf spots that occasionally coalesce into straight to irregular lines in the leaf surface of several species of Rytidosperma.
Wikipedia: “Ecology”
In human culture
Rytidosperma: 'wrinkled seed' from the Greek 'rhytidos' = wrinkled and 'sperma' = seed
Wikipedia: “Etymology”
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
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In the stacks
Searching the stacks…
Every page naming Rytidosperma pilosum in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 118431.