Bignonia callistegioides, FXFC+4XV PASO DE LAS CADENAS, 60000 Departamento de Río Negro, Uruguay

Bignonia callistegioides Cham.

Argentine trumpetvine, Argentinische Trompetenranke, Argentinischer Schönmund (DE), lavender trumpet vine

Climate known 52 photographs

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

Bignonia callistegioides, also known as violet trumpet vine and lavender trumpet vine, is a vine native to southern Brazil and Argentina.

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

About the genus · Bignonia

Bignonia is a genus of flowering plants in the family Bignoniaceae. Its genus and family were named after Jean-Paul Bignon by his protégé Joseph Pitton de Tournefort in 1694, and the genus was established as part of modern botanical nomenclature in 1753 by Carl Linnaeus. Species have been recorded in a range extending from southern USA and Mexico to most of South America.

Text from Wikipedia, “Bignonia”, CC BY-SA 4.0, quoted as written.

Family

Bignoniaceae

Described by

Cham.

Native to

Bolivia, Brazil South, Argentina Northeast +3

Wild records

182 in range· 103 open

At a glance

Warmest month

30°C

Jan, mean day; nights 20 °C (CHELSA)

Rain

1294mm/yr

12 wet months · peak Feb 139 mm (CHELSA)

Light

15–45DLI

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

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

Rain rule: no season, 70% of the rain takes 8 months (April to November in the northern hemisphere). Habitat rain 1294 mm a year, wettest February at 139 mm, driest August at 66 mm (habitat calendar, southern hemisphere). Open sky over the habitat: 15 to 45 mol/m²/day. Cold floor 0.0 °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 Bignonia lindleyi DC.; Bignonia picta Lindl.; Bignonia speciosa Graham; Bignonia speciosa Tweedie; Bignonia speciosa Tweedie ex Hook. and 6 more.

Cultivation

Its year Rain rule: no season, 70% of the rain takes 8 months (April to November 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 (973 mm of 1294 mm) takes 8 months, October to May. Mean temperature moves 12.4 °C between the warmest and coldest month. Months are the habitat's, southern hemisphere; shifted six months for a northern-hemisphere collection: April to November.

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 1294 mm a year, wettest February at 139 mm, driest August at 66 mm (habitat calendar, southern hemisphere).

This species’ habitat figures, with their source.

1294 mm a year at the habitat, 973 mm of it October to May. Wettest month February at 139 mm, driest August at 66 mm. Across the envelope cells the year's total runs 1109 mm to 1827 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: 15 to 45 mol/m²/day.

This species’ habitat figures, with their source.

Open sky over the habitat: 15 to 45 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 14, the highest 90th-percentile month 47).

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 0.0 °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 0.0 °C, the absolute minimum -4.2 °C, about 3 frost nights a year (NASA POWER daily minima). Warmest: the 99th-percentile day is 40.1 °C. Monthly means: coldest night 8.8 °C in July (across the envelope cells 6.8 °C to 12.2 °C), warmest day 29.9 °C in January (median year across the envelope cells, CHELSA). Cold floor: 0.0 °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: 57 to 63% 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 137 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	30 / 27–31	29 / 26–30	27 / 25–29	23 / 21–26	20 / 18–23	17 / 15–21	17 / 14–21	19 / 16–24	21 / 17–25	24 / 21–28	26 / 23–29	29 / 25–31
Night °C	20 / 19–22	20 / 18–22	19 / 17–21	15 / 14–18	12 / 10–15	10 / 8–13	9 / 7–12	10 / 8–14	11 / 9–15	14 / 12–18	16 / 14–20	19 / 17–21
Rain mm	125 / 99–186	139 / 114–175	129 / 98–159	126 / 89–191	105 / 68–149	89 / 31–138	75 / 24–134	66 / 34–115	91 / 52–156	118 / 94–205	118 / 105–180	113 / 88–183
DLI	44 / 39–47	38 / 36–40	32 / 31–33	24 / 23–26	18 / 17–21	15 / 14–18	17 / 16–21	22 / 21–26	29 / 26–31	35 / 33–36	42 / 39–43	45 / 40–47
RH %	58 / 55–63	60 / 57–64	60 / 58–63	62 / 60–63	62 / 60–64	63 / 61–65	62 / 60–64	60 / 58–63	59 / 56–62	60 / 57–62	58 / 56–61	57 / 55–61

Each figure is the median across the 137 grid cells holding the 176 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 2414:2436 (-30.725, -58.175). Over 44 years there: absolute minimum -4.2 °C, 1st-percentile night 0.0 °C, 99th-percentile day 40.1 °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 137 distinct grid cells holding the 176 in-range records; extremes and elevation at the typical cell 2414:2436 (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 -30.50_-58.125, lapse-corrected +9 m at 6.5 °C/km. Elevation: ETOPO 2022, 70 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.

NativeBolivia, Brazil South, Argentina Northeast, Argentina Northwest, Paraguay, Uruguay

Kew's description“liana” · “seasonally dry tropical”· quoted from WCVP, RBG Kew (CC BY 4.0); not derived here

Map marker-33.96, -58.58 · in the densest population, 99 records (54% of those in range)

Evidence usedThe map marker and the climate envelope rest on all 182 georeferenced records inside the native range; the map shows only the 103 openly licensed ones, which alone would put the marker 220 km away. 90 records outside the range (gardens, roadsides, misidentifications) ignored. 6 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 2° block of the 182 in-range records; it decides nothing.

Photographs

Photographs: (c) Rafael Tosi, some rights reserved (CC BY); (c) Guilherme Cameis Freda, some rights reserved (CC BY-SA); (c) Facundo Chieffo, some rights reserved (CC BY); no rights reserved · CC0; (c) Catriona Hays Howson, some rights reserved (CC BY) (2); (c) Ivan Grela, some rights reserved (CC BY); (c) Daniel Dias, some rights reserved (CC BY-SA).

Photographs: iNaturalist and Wikimedia Commons 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 Bignonia callistegioides, most cited first, from OpenAlex (CC0). A mention, not a cultivation source: nothing on this page is drawn from them.

Evolution and Development of Tendrils in Bignonieae (Lamiales, Bignoniaceae)1

Mariane S. Sousa‐Baena, Neelima Sinha, Lúcia G. Lohmann (2014) · Annals of the Missouri Botanical Garden

Acquisition and diversification of tendrilled leaves in B ignonieae ( B ignoniaceae) involved changes in expression patterns of SHOOTMERISTEMLESS ( STM ), LEAFY/FLORICAULA ( LFY / FLO ), and PHANTASTICA ( PHAN )

Mariane S. Sousa‐Baena, Lúcia G. Lohmann, Magdalena Rossi, Neelima Sinha (2013) · New Phytologist

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