When does zarzabacoa comun bloom in Florida?

Most often in September. Across 235 dated, research-grade observations of Desmodium incanum in Florida, the flowering season runs roughly March to December.

Peak September In flower 235 Examined 280 State Florida

Flowering 235 in flower of 280 examined

40%

67%

91%

79%

92%

84%

82%

92%

95%

84%

82%

80%

Proportion of examined Desmodium incanum in Florida in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	2	5	40%	12% to 77%
Feb	4	6	67%	30% to 90%
Mar	10	11	91%	62% to 98%
Apr	31	39	79%	64% to 89%
May	23	25	92%	75% to 98%
Jun	27	32	84%	68% to 93%
Jul	28	34	82%	66% to 92%
Aug	23	25	92%	75% to 98%
Sep	18	19	95%	75% to 99%
Oct	31	37	84%	69% to 92%
Nov	18	22	82%	61% to 93%
Dec	20	25	80%	61% to 91%

Peak flowering in Sep. Each bar is the share of Desmodium incanum in Florida 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. 235 of 280 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 Florida found Desmodium incanum in flower, not a forecast. It is computed only from observations made in Florida, 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

Desmodium incanum

zarzabacoa comun

Sourcesevery claim on this page

GBIF (iNaturalist Research-grade Observations). Dated flowering annotations in Florida. 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.