Cota austriaca (Austrian chamomile)

Plate 1 figs. a–h · 8 separate observations

Cota austriaca, photographed by Pavel Kacl — fig. a Pavel Kacl, CC BY 4.0 / 2022-06-05 / obs. 203605090

Cota austriaca, photographed by Edmundas Greimas — fig. b Edmundas Greimas, CC BY 4.0 / obs. 201906948

Cota austriaca, photographed by Tristan Haab — fig. c Tristan Haab, CC BY 4.0 / obs. 197900629

Cota austriaca, photographed by Michael Andresek — fig. d Michael Andresek, CC BY 4.0 / obs. 191484111

Cota austriaca, photographed by Susan Marley — fig. e Susan Marley, CC BY 4.0 / obs. 92486973

Cota austriaca, photographed by Patrick Hacker — fig. f Patrick Hacker, CC BY 4.0 / obs. 84444233

Cota austriaca, photographed by carnifex — fig. g carnifex, CC BY 4.0 / obs. 26961115

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 24 botanical countries

Native distribution of Cota austriaca, 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.

Region	TDWG code	Continent
Albania	ALB	EUROPE
Austria	AUT
Belgium	BGM
Bulgaria	BUL
Czechia-Slovakia	CZE
Germany	GER
Greece	GRC
Hungary	HUN
Italy	ITA
Krym	KRY
NW. Balkan Pen.	YUG
Poland	POL
Portugal	POR
Romania	ROM
Switzerland	SWI
Türkiye-in-Europe	TUE
Ukraine	UKR
Iran	IRN	ASIA-TEMPERATE
Lebanon-Syria	LBS
North Caucasus	NCS
Transcaucasus	TCS
Türkiye	TUR
Turkmenistan	TKM
Tunisia	TUN	AFRICA

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.

Flowering 33 in flower of 43 examined

11%

100%

92%

Proportion of examined Cota austriaca in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	0	0	too few examined
Feb	0	0	too few examined
Mar	0	1	too few examined
Apr	1	9	11%	2% to 44%
May	14	14	100%	78% to 100%
Jun	11	12	92%	65% to 99%
Jul	4	4	too few examined
Aug	0	0	too few examined
Sep	0	0	too few examined
Oct	1	1	too few examined
Nov	1	1	too few examined
Dec	1	1	too few examined

Peak flowering in May. Each bar is the share of Cota austriaca observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 33 of 43 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 9 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Where it actually grows measured, from 455 observations

Condition	5th percentile	Median	95th percentile
Coldest month, mean daily low	-4.6 °C	-3.5 °C	2.9 °C
Warmest month, mean daily high	18.8 °C	25.1 °C	26.6 °C
Annual rainfall	520 mm	639 mm	921 mm
Rainfall in the driest quarter	78 mm	109 mm	182 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 455 research-grade observations of Cota austriaca 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. Climate from CHELSA V2.1 (Karger et al. 2017); occurrences from 10.15468/dl.cgje2x.

Also published as 19 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.

Anacyclus austriacus (Jacq.) Samp.
Anthemis austriaca Jacq.
Anthemis austriaca f. austriaca
Anthemis austriaca f. latiloba Thin
Anthemis cota Savi ex DC.
Anthemis dentata Moench
Anthemis hungarica Hornem.
Anthemis hyrcana Sosn. ex Grossh.
Anthemis maritima Pall. ex M.Bieb.
Anthemis nigrescens Vest
Anthemis pontica d'Urv.
Anthemis requienii Sch.Bip. ex Nyman
Anthemis retusa Link ex Spreng.
Anthemis ruthenica Sch.Bip. ex Schur
Anthemis zangelana Sosn. ex Grossh.
Chamaemelum austriacum J.Presl & C.Presl
Chamaemelum cota (L.) All.
Cota austriaca (Jacq.) J.Gay
Cota cossoniana (Rchb.f.) Willk. & Lange

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.
USDA PLANTS Database. common name, checklist symbol ANAU3. public domain. Retrieved 2026-07-13.
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.