Antennaria solitaria (singlehead pussytoes)

Plate 1 figs. a–h · 8 separate observations

Antennaria solitaria, photographed by Brian Finzel — fig. a Brian Finzel, CC BY-SA 4.0 / 2022-04-18 / obs. 189130878

Antennaria solitaria, photographed by John Abrams — fig. c John Abrams, CC BY 4.0 / obs. 186905468

Antennaria solitaria, photographed by Anne Parker — fig. e Anne Parker, CC BY 4.0 / obs. 183017258

Antennaria solitaria, photographed by Elias — fig. f Elias, CC BY 4.0 / obs. 121476590

Antennaria solitaria, photographed by Anthony A Simmons — fig. g Anthony A Simmons, CC0 1.0 / obs. 119991885

Antennaria solitaria, photographed by Clay Gibbons — fig. h Clay Gibbons, CC BY 4.0 / obs. 120055341

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 16 botanical countries

Native distribution of Antennaria solitaria, 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
Alabama	ALA	NORTHERN AMERICA
Arkansas	ARK
Georgia	GEO
Illinois	ILL
Indiana	INI
Kentucky	KTY
Louisiana	LOU
Maryland	MRY
Mississippi	MSI
North Carolina	NCA
Ohio	OHI
Pennsylvania	PEN
South Carolina	SCA
Tennessee	TEN
Virginia	VRG
West Virginia	WVA

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 79 in flower of 85 examined

60%

96%

Proportion of examined Antennaria solitaria in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	0	0	too few examined
Feb	3	5	60%	23% to 88%
Mar	52	54	96%	87% to 99%
Apr	22	23	96%	79% to 99%
May	2	2	too few examined
Jun	0	1	too few examined
Jul	0	0	too few examined
Aug	0	0	too few examined
Sep	0	0	too few examined
Oct	0	0	too few examined
Nov	0	0	too few examined
Dec	0	0	too few examined

Peak flowering in Mar. Each bar is the share of Antennaria solitaria 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. 79 of 85 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 534 observations

Condition	5th percentile	Median	95th percentile
Coldest month, mean daily low	-4.3 °C	-1.1 °C	1.8 °C
Warmest month, mean daily high	26.7 °C	29.2 °C	31.4 °C
Annual rainfall	1,083 mm	1,376 mm	1,794 mm
Rainfall in the driest quarter	228 mm	277 mm	392 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 534 research-grade observations of Antennaria solitaria 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 2 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.

Antennaria monocephala Greene
Antennaria plantaginifolia var. monocephala Torr. & A.Gray

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.
Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. 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.