Krameria erectaWilld.

littleleaf ratany

WFO wfo-0001069516 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Krameria erecta, photographed by Bobby McCabe
fig. a Bobby McCabe, CC BY 4.0 / 2022-06-12 / obs. 205591865

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 9 botanical countries

Regions where Krameria erecta is native: Arizona, California, Mexico Northeast, Mexico Northwest, Mexico Southwest, Nevada, New Mexico, Texas, Utah ArizonaCaliforniaMexico NortheastMexico NorthwestMexico SouthwestNevadaNew MexicoTexasUtah
Native distribution of Krameria erecta, 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.
RegionTDWG codeContinent
Arizona ARI NORTHERN AMERICA
California CAL
Mexico Northeast MXE
Mexico Northwest MXN
Mexico Southwest MXS
Nevada NEV
New Mexico NWM
Texas TEX
Utah UTA

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 592 in flower of 816 examined

Proportion of examined Krameria erecta in flower, by month
Month In flower Examined Share 95% interval
Jan 11 36 31% 18% to 47%
Feb 18 47 38% 26% to 53%
Mar 74 91 81% 72% to 88%
Apr 172 186 92% 88% to 95%
May 141 166 85% 79% to 90%
Jun 23 40 57% 42% to 71%
Jul 3 10 30% 11% to 60%
Aug 14 21 67% 45% to 83%
Sep 25 39 64% 48% to 77%
Oct 54 78 69% 58% to 78%
Nov 40 61 66% 53% to 76%
Dec 17 41 41% 28% to 57%

Peak flowering in Apr. Each bar is the share of Krameria erecta 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. 592 of 816 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.cgje2x.

Where it actually grows measured, from 1,993 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -0.2 °C 3.2 °C 10.5 °C
Warmest month, mean daily high 32.0 °C 36.1 °C 40.6 °C
Annual rainfall 117 mm 246 mm 464 mm
Rainfall in the driest quarter 4 mm 16 mm 38 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 1,993 research-grade observations of Krameria erecta 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 10 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.

  • Krameria glandulosa Rose & J.H.Painter
  • Krameria imparata Britton
  • Krameria interior Rose & J.H.Painter
  • Krameria navae Rzed.
  • Krameria palmeri Rose
  • Krameria parviflora Benth.
  • Krameria parvifolia Benth.
  • Krameria parvifolia var. glandulosa (Rose & J.H.Painter) J.F.Macbr.
  • Krameria parvifolia var. imparata J.F.Macbr.
  • Krameria rosmarinifolia Pav. ex Chodat

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. 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.