Rytidosperma exiguum is a species of true grass in the subfamily Danthonioideae. It is endemic to New Zealand and was described as Triodia exigua in 1881 by English-New Zealand botanist Thomas Kirk.
Taxonomy
Etymology Rytidosperma: 'wrinkled seed' from the Greek 'rhytidos' = wrinkled and 'sperma' = seed
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