Leptosiphon melingii(Wiggins) J.M.Porter & L.A.Johnson

WFO wfo-0001286942 Accepted WFO 2026-06 7 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–g · 5 observations

This species has been photographed under an open licence only 5 times, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.

Leptosiphon melingii, photographed by Kristen Francis
fig. a Kristen Francis, CC0 1.0 / 2022-06-07 / obs. 204793496

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 1 botanical country

Regions where Leptosiphon melingii is native: Mexico Northwest Mexico Northwest
Native distribution of Leptosiphon melingii, 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
Mexico Northwest MXN NORTHERN AMERICA

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 182 in flower of 186 examined

Proportion of examined Leptosiphon melingii in flower, by month
Month In flower Examined Share 95% interval
Jan 0 0 too few examined
Feb 0 0 too few examined
Mar 1 1 too few examined
Apr 8 10 80% 49% to 94%
May 16 17 94% 73% to 99%
Jun 33 33 100% 90% to 100%
Jul 36 36 100% 90% to 100%
Aug 43 43 100% 92% to 100%
Sep 18 18 100% 82% to 100%
Oct 24 25 96% 80% to 99%
Nov 3 3 too few examined
Dec 0 0 too few examined

Peak flowering in Jun. Each bar is the share of Leptosiphon melingii 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. 182 of 186 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 5 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 207 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -4.2 °C -3.4 °C 0.9 °C
Warmest month, mean daily high 23.3 °C 24.4 °C 30.2 °C
Annual rainfall 336 mm 361 mm 401 mm
Rainfall in the driest quarter 15 mm 19 mm 26 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 207 research-grade observations of Leptosiphon melingii 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 3 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.

  • Leptodactylon melingii Wiggins
  • Linanthastrum melingii (Wiggins) Wherry
  • Linanthus melingii (Wiggins) V.E.Grant

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. 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.