Trimezia candida, Culebras Bajo, Cayey 00736, Puerto Rico

Trimezia candida (Hassl.) Ravenna

white walking iris

Climate known 64 photographs Bulb, tuber or caudex

Every figure on this page is derived from public data by a stated rule and says its source; nothing here is written by a person or a model, except the Wikipedia passage, which is quoted and marked as such. How it is made.

Summary

Trimezia candida, synonym Neomarica candida, also known as white walking iris, is species of flowering plant. It was first described by Emil Hassler and given the name Neomarica candida by Thomas Archibald Sprague. Trimezia candida belongs to the genus Trimezia and family Iridaceae.

Text from Wikipedia, “Trimezia candida”, CC BY-SA 4.0, quoted as written. Kept separate from everything derived here.

About the genus · Trimezia

Trimezia is a genus of flowering plants in the family Iridaceae, native to the warmer parts of southern Mexico, Central America, South America, Florida, and the West Indies. Trimezia is placed in the tribe Trimezieae. The division of the tribe into genera has varied considerably. More on Wikipedia ›

The opening of Wikipedia, “Trimezia”, CC BY-SA 4.0, quoted as written.

Family

Iridaceae

Described by

(Hassl.) Ravenna

Native to

Brazil Southeast, Brazil South, Argentina Northeast +2

Wild records

130 in range· 73 open

At a glance

Warmest month

28°C

Feb, mean day; nights 21 °C (CHELSA)

Rain

1746mm/yr

12 wet months · peak Jan 202 mm (CHELSA)

Light

18–39DLI

mol/m²/day, winter to summer, open sky (CHELSA shortwave)

In short condensed by rule from the cultivation cards · not written by a person

Grouped as a bulb, tuber or caudex by Iridaceae, which is usually but not always one kind of plant (archetype table). Rain rule: no season, 70% of the rain takes 8 months (March to October in the northern hemisphere). Habitat rain 1746 mm a year, wettest January at 202 mm, driest August at 87 mm (habitat calendar, southern hemisphere). Open sky over the habitat: 18 to 39 mol/m²/day. Cold floor 10.2 °C (1st-percentile habitat night, NASA POWER).

Each sentence is one card's own one-line form, written by the same rule as the card (Its year, Rain, Light, Temperature); the note cannot say what a card does not. Months are given for the northern hemisphere (set your site in Settings to change this), and the habitat's own alongside. The cards · the figures.

Also known as Marica candida Hassl.; Neomarica candida (Hassl.) Sprague.

Cultivation

Grouped as a bulb, tuber or caudex by Iridaceae, which is usually but not always one kind of plant (archetype table). The table holds no figure for this group, which spans too much for one minimum; the cold floor is the habitat's alone, and no prose comes from the table.

Its year Rain rule: no season, 70% of the rain takes 8 months (March to October in the northern hemisphere).

This species’ habitat figures, and what two fixed rules read from them.

The rain rule reads no season: 70% of the year's rain (1328 mm of 1746 mm) takes 8 months, September to April. Mean temperature moves 8.6 °C between the warmest and coldest month. Months are the habitat's, southern hemisphere; shifted six months for a northern-hemisphere collection: March to October.

Read from the median year of CHELSA monthly rainfall and mean temperature across the envelope cells: the rain rule takes the smallest set of months carrying 70% of the rain and calls it winter when its mean is more than half a degree below the year's, summer when more than that above, and neither in between; the temperature rule, used only under 120 mm, names the cooler six months when they are at least a degree cooler than the other six. Months are shifted for the other hemisphere only where the temperature curve gives a season to reverse. A reading of the curves, not an observation of the plant.

Rain Habitat rain 1746 mm a year, wettest January at 202 mm, driest August at 87 mm (habitat calendar, southern hemisphere).

This species’ habitat figures, with their source.

1746 mm a year at the habitat, 1328 mm of it September to April. Wettest month January at 202 mm, driest August at 87 mm. Across the envelope cells the year's total runs 1380 mm to 2277 mm (10th to 90th percentile of each cell's own year) (median year across the envelope cells, CHELSA; habitat calendar, southern hemisphere).

CHELSA monthly precipitation, median year across the envelope cells. The rain that falls where the species is recorded; nothing about how the plant takes water.

Light Open sky over the habitat: 18 to 39 mol/m²/day.

This species’ habitat figures, with their source.

Open sky over the habitat: 18 to 39 mol/m²/day across the year (daily light integral, median year across the envelope cells, CHELSA; the lowest 10th-percentile month across the cells is 16, the highest 90th-percentile month 43).

CHELSA shortwave radiation at each envelope cell, a daily-mean flux taken to a daily total and converted at 2.07 mol of PAR per MJ. The sky over the habitat, measured; what reaches a plant under a rock, a shrub or a shade cloth is not.

Warmth and air Cold floor 10.2 °C (1st-percentile habitat night, NASA POWER).

This species’ habitat figures, with their source.

Temperature

Coldest: the 1st-percentile night over 44 years at the typical cell is 10.2 °C, the absolute minimum 5.9 °C, no frost in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 28.9 °C. Monthly means: coldest night 12.6 °C in July (across the envelope cells 9.8 °C to 16.0 °C), warmest day 28.1 °C in February (median year across the envelope cells, CHELSA). Cold floor: 10.2 °C, which is the 1st-percentile night over 44 years at the typical cell (NASA POWER).

NASA POWER daily minima and maxima 1981–2024 at the typical cell, lapse-corrected to its elevation; CHELSA monthly means, median year across the envelope cells, CHELSA. The cold floor is the figure named in its sentence. Not a measured survival limit for any plant in a pot.

Humidity

Relative humidity at the habitat: 62 to 65% across the year (monthly means, median year across the envelope cells, CHELSA). A figure about the air, saying nothing about how the plant takes water.

CHELSA relative humidity, median year across the envelope cells.

The figures the cards read from are in Climate below, and where they came from in Natural habitat.

Climate across the habitat

day night rain 10th–90th percentile across 98 habitat cells cold quarter: the three months around the coldest night extremes over 44 years at the typical cell, marked at the edge: undated DLI, mol/m²/dayRH %each on its own scale

Figures by month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Day °C	28 / 26–31	28 / 26–30	27 / 25–30	25 / 23–27	22 / 20–25	21 / 19–24	20 / 18–24	22 / 20–25	23 / 20–26	24 / 22–28	26 / 23–29	27 / 25–31
Night °C	22 / 18–23	21 / 18–23	21 / 18–23	18 / 16–21	15 / 12–19	13 / 10–17	13 / 10–16	14 / 11–16	15 / 12–18	17 / 14–20	19 / 16–21	21 / 17–22
Rain mm	202 / 155–336	170 / 136–286	152 / 111–274	143 / 90–199	126 / 80–173	100 / 58–144	105 / 46–146	87 / 41–122	146 / 86–180	165 / 119–227	168 / 130–202	182 / 140–244
DLI	38 / 34–41	37 / 33–38	33 / 29–34	25 / 24–29	20 / 19–24	18 / 16–22	19 / 17–24	24 / 22–29	28 / 24–32	34 / 28–36	38 / 33–40	39 / 35–43
RH %	64 / 61–68	65 / 62–69	64 / 62–69	64 / 61–68	64 / 62–67	64 / 62–66	63 / 60–66	62 / 58–66	63 / 57–67	63 / 60–68	63 / 59–67	63 / 59–68

Each figure is the median across the 98 grid cells holding the 126 in-range records, with the 10th–90th percentile span across those cells after the slash where it differs. Extremes and elevation were read at the typical cell 2275:2673 (-23.775, -46.325). Over 44 years there: absolute minimum 5.9 °C, 1st-percentile night 10.2 °C, 99th-percentile day 28.9 °C. Normals: CHELSA V2.1 1981–2010 climatology, 0.05° cells (each the mean of ~36 1 km pixels). Envelope: median and 10th–90th percentile of each month across the 98 distinct grid cells holding the 126 in-range records; extremes and elevation at the typical cell 2275:2673 (its coldest month's mean night nearest the median across cells); its position is the cell centre. Extremes: NASA POWER (MERRA-2) daily 1981–2024, cell -24.00_-46.250, lapse-corrected +529 m at 6.5 °C/km. Elevation: ETOPO 2022, 717 m (cell mean).

Natural habitat

Native range as published by WCVP; the marker is where the records are densest and decides nothing: the climate was read across every in-range record's cell, not at the marker.

Openly licensed records inside the range, framed on where they fall.

NativeBrazil Southeast, Brazil South, Argentina Northeast, Paraguay, Uruguay

Kew's description“rhizomatous geophyte” · “subtropical”· quoted from WCVP, RBG Kew (CC BY 4.0); not derived here

Map marker-25.673, -54.464 · in the densest population, 117 records (90% of those in range)

Evidence usedThe map marker and the climate envelope rest on all 130 georeferenced records inside the native range; the map shows only the 73 openly licensed ones, which alone would put the marker 139 km away. 196 records outside the range (gardens, roadsides, misidentifications) ignored. 4 in-range records are placed to worse than 10 km and stay on the map but off the climate.

The map markerthe map marker: the openly licensed record nearest the middle of the densest 1° population inside the densest 4° block of the 130 in-range records; it decides nothing.

Photographs

Photographs: no rights reserved · CC0 (7); (c) Diego Dos Anjos Souza, some rights reserved (CC BY).

Photographs: iNaturalist did not answer when this page was built; what is shown came from the sources that did.

Papers naming this species

Works whose title or abstract names Trimezia candida, most cited first, from OpenAlex (CC0). A mention, not a cultivation source: nothing on this page is drawn from them.

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