Rytidosperma gracile

Plate 1 figs. a–h · 8 separate observations

Rytidosperma gracile, photographed by Bruce Calvert — fig. b Bruce Calvert, CC BY 4.0 / obs. 11802457

Rytidosperma gracile, photographed by Colin Meurk — fig. c Colin Meurk, CC BY-SA 4.0 / obs. 7512399

Rytidosperma gracile, photographed by Michael D. Pirie — fig. e Michael D. Pirie, CC BY 4.0 / obs. 32165529

Rytidosperma gracile, photographed by Leon Perrie — fig. f Leon Perrie, CC BY 4.0 / obs. 173938440

Rytidosperma gracile, photographed by Joe Potter Butler — fig. g Joe Potter Butler, CC BY 4.0 / obs. 115014087

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 6 botanical countries

Native distribution of Rytidosperma gracile, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.

Region	TDWG code	Continent
Chatham Is.	CTM	AUSTRALASIA
New South Wales	NSW
New Zealand North	NZN
New Zealand South	NZS
Tasmania	TAS
Victoria	VIC

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Where it actually grows measured, from 82 observations

Condition	5th percentile	Median	95th percentile
Coldest month, mean daily low	-2.4 °C	3.1 °C	8.8 °C
Warmest month, mean daily high	16.2 °C	18.3 °C	21.5 °C
Annual rainfall	930 mm	1,633 mm	3,280 mm
Rainfall in the driest quarter	189 mm	345 mm	637 mm

It is found where winters bring light frost. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 82 research-grade observations of Rytidosperma gracile that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.

Also published as 4 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

Danthonia gracilis Hook.f.
Danthonia semiannularis var. gracilis (Hook.f.) Hook.f.
Notodanthonia gracilis (Hook.f.) Zotov
Thonandia gracilis (Hook.f.) H.P.Linder

Sourcesevery claim on this page

World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.