When does straggler daisy bloom in Texas?

Most often in December. Across 1,797 dated, research-grade observations of Calyptocarpus vialis in Texas, the flowering season runs roughly January to December.

Peak December In flower 1,797 Examined 1,888 State Texas

Flowering 1,797 in flower of 1,888 examined

93%

78%

97%

98%

97%

96%

86%

85%

91%

96%

98%

Proportion of examined Calyptocarpus vialis in Texas in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	74	80	93%	85% to 97%
Feb	43	55	78%	66% to 87%
Mar	192	198	97%	94% to 99%
Apr	509	522	98%	96% to 99%
May	216	223	97%	94% to 98%
Jun	133	138	96%	92% to 98%
Jul	49	57	86%	75% to 93%
Aug	47	55	85%	74% to 92%
Sep	110	121	91%	84% to 95%
Oct	172	179	96%	92% to 98%
Nov	129	134	96%	92% to 98%
Dec	123	126	98%	93% to 99%

Peak flowering in Dec. Each bar is the share of Calyptocarpus vialis in Texas 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. 1,797 of 1,888 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 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.wt38fd.

What this is, and what it is not

This is a record of when people in Texas found Calyptocarpus vialis in flower, not a forecast. It is computed only from observations made in Texas, so it is not the species’ global average dragged onto a map: the same plant flowers on different dates in different places, and that is the entire point of the page.

It will not tell you what your particular plant will do this year. Bloom time moves with the season, with altitude, and with the weather, and a warm February pulls everything forward. We publish the distribution and the sample size, and we refuse to draw a month that too few people examined.

The plant

Calyptocarpus vialis

straggler daisy

Sourcesevery claim on this page

GBIF (iNaturalist Research-grade Observations). Dated flowering annotations in Texas. Every record achieved iNaturalist quality grade Research, which is applied upstream at export. 10.15468/dl.wt38fd. Retrieved 2026-07-14.
World Flora Online Plant List. The accepted name. CC0. Retrieved 2026-07-12.