When does flatcrown buckwheat bloom in Nevada?

Most often in April. Across 163 dated, research-grade observations of Eriogonum deflexum in Nevada, the flowering season runs roughly April to December.

Peak April In flower 163 Examined 197 State Nevada

Flowering 163 in flower of 197 examined

40%

100%

77%

39%

74%

85%

97%

94%

100%

Proportion of examined Eriogonum deflexum in Nevada in flower, by month
Month	In flower	Examined	Share	95% interval
Jan	2	5	40%	12% to 77%
Feb	0	4	too few examined
Mar	4	4	too few examined
Apr	8	8	100%	68% to 100%
May	17	22	77%	57% to 90%
Jun	7	18	39%	20% to 61%
Jul	14	19	74%	51% to 88%
Aug	17	20	85%	64% to 95%
Sep	32	33	97%	85% to 99%
Oct	31	32	97%	84% to 99%
Nov	17	18	94%	74% to 99%
Dec	14	14	100%	78% to 100%

Peak flowering in Apr. Each bar is the share of Eriogonum deflexum in Nevada 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. 163 of 197 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 2 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.wt38fd.

What this is, and what it is not

This is a record of when people in Nevada found Eriogonum deflexum in flower, not a forecast. It is computed only from observations made in Nevada, 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

Eriogonum deflexum

flatcrown buckwheat

Sourcesevery claim on this page

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