Pinguicula conzattii

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Family : Lentibulariaceae

Genus : Pinguicula

Name : Pinguicula conzattii


Sub-classification (Casper) : link

Publication : Sergio Zamudio and Johan van Marm. "Pinguicula conzattii (Lentibulariaceae), una especie nueva del estado de Oaxaca, Mexico", Acta Botanica Mexicana (     ) N° xx  , pages xx.


Etymology : The name of the plant is dedicated to Don Cassiano Conzatti (1862 – 1951), an Italian botanist and teacher that studied for more than 50 years, the flora of Oaxaca.

DESCRIPTION : (By Sergio Zamudio and Johan van Marm in publication)

Herba perennis ; Rhizoma simplex breve radicibus filiformibus adventitis numerosis ; folia radicalia rosulata biformia integerrima ; « hiemis » 70 – 100 ; crassa, retrorsa , spathulata, facie plana, dorso obtuse carinata, apice obtuso, base attenuata, (3.5) 5 -10 mm longa, (1.5) 2 – 4 mm lata, utrimque hispidula, pilis longis cylindricis albidus ; « aestatis » 4 (6), membranacea, reclinata, solum adpressa, petiolata, petiolo 10 – 20 mm longo, lamina suborbiculata, basin rotundata vel cordata, marginibus leviter involutis, 28 – 50 mm longa, 25 – 48 mm lata, superne glandulis sessilibus et stipitatis dense vestita, basin versus pilis subulatis longis, ciliatis ; hibernacula nulla ; pedunculi 1 – 6 erecti, teretes, glandular-pubescenti 70 – 170 mm alti, uniflori ; flores 18 – 30 mm longi (calcare incluso), calix bilabiatus, extus glandulis stipitatis dense obsitus, intus glandulis stipitatis sparsis, labium superum dimidium tripartitum , lobis triangular-ellipticis vel lanceolatis, labium inferum usque ad basin bilobum, lobis ellipticis vel lanceolatis ; corolla subisoloba vel bilabiata, albida vel albido-violacea, extus glandulis stipitatis vestita, limbus versus basin pilosus pilis longis clavatis, lobis subaequalibus obovatis usque ad suborbiculatis 5 – 10 mm longis, 5 – 12 mm latis, apice rotundatis vel truncatis ; fauce albida intus pilosa cum pilis longis clavatis ; tubo cylindrico, albido, 7 – 12 mm longo, intus pilosus, pilis clavatis longis, sine palato ; calcar subcylindricum obtusum, viride, 3 – 6 mm longum, cum tubo angulum obtusum formans, longius quam latum ; stamina 1.5 – 2 mm longa ; pollen 4 – 5 colporatum ; ovarium subglobosum glandulis stipitatis dense obsitum ; stigma bilabiatum labio infero flabelliformis, fimbriato ; capsula subglobosa, 3 – 4 mm diameter, glandulas stipitatis dense obsitum ; semina fusiformia +/- 1 mm longa, +/- 0.25 mm lata.


translation :

 - Soon - 


Alfred Lau, the famous Botanist found this species around 1987 near the village of Santiago Nuyoo in Oaxaca. He sent seeds to various growers in Europe and the plants were grown under the publication under the name Pinguicula “Santiago Nuyoo Pass”.

This village is not far from Santa Maria Yucuhiti where Alfred Lau found also another population of plants related to Pinguicula moranensis and still grown in Europe under the name Pinguicula “Santa Maria Yucuhiti”.


From Mexico, Oaxaca, municipality of Santo Tomas Ocotepec, near La Cueva de la Hoya at +/- 10 km to NE of Santiago Nuyoo. This is the type location and olnly known location for this species.

(click on the map for better location and relief map)


On calcareous rocks in bosque mesofilo montano with Chirantodedron, Cercocarpus, Buddleia and Quercus, at altitudes of 2400 m.  



Click on the graph to enlarge and see the graph of normal precipitation and normal average temperatures. Normal values are 30-year averages for the period 1961 to 1990. The weather stations are grouped by region (see map of weather stations).



Introduction in culture :

From the seeds of Alfred Lau. The plant is still very rare in culture.


(North hemisphere, France near Paris, in a polycarbonate greenhouse - see the map -)


Life cycle : The life cycle observed in culture for this Pinguicula consists of two seasons, one wet and the other dry (see link). The plant forms different leaf rosettes according to the season. During the resting months (winter) the small succulent rosette is composed of numerous non-carnivorous leaves. The carnivorous leaves are produced in spring and during all summer. The flowering occurs from winter rosette. The life cycle of the plant is probably similar in it's native habitat.


Media : I use today (arrival of my clone in late 2002) a 100 % mineral media : 2 perlite, 2 vermiculite, 1 small sand (for aquarium), 1 fine white sand, 1 pouzzolane (volcanic lava), 1 aqualit (expansed ceramic for aquarium). The aqualit can be replaced by 1 of pouzzolane. Plants in this media grow slower but have a stronger root system. Johan van Marm told me that he had better results on acidic media.


Pot : plastic, colour terracotta, diameter 12.5cm, height 12cm.


Cultivation : I think that a slightly airy situation inside the greenhouse is important to avoid air stagnation. For this reason, I use a fan 24h/24h all the year round.

Watering is very important : from May to September (summer). I let the media drying slightly between two watering. I use rain water poured on the top of the pot taking care not to wet the rosette.  From October to April, It is important to let the media drying completely (no watering) but with an atmospheric humidity of about 80%. 

The mentioned months are indicative and can change according to your own growing conditions. In fact, when this Pinguicula begins to produce its non-carnivorous leaves, you have to stop watering and let the pot drying out completely. Inversely, when the plant begins to produce in early spring its carnivorous leaves, you have to progressively start watering again the pot.

Temperatures : during growth period, day temperatures are about 25°C but may reach 35°C when the sun is shining on the greenhouse in spite of the use of shading covers. Night temperatures are around 20°C. During resting period : day/night over freezing point. Lower temperature observed : - 4°C. I use an electronic petroleum heater to provide heat.  

Flowering period : 


Multiplication : The plants can be propagated  easily using non-carnivorous leaves separated from the rosette  at the end of winter. You only have to carefully tear out the totality of the leaf including the white base as the plantlets will sprout from this area. I don't know yet if it is possible to have seeds in culture.

PICTURES: (click to enlarge)


Pinguicula conzattii collected by A. Lau in Santiago Nuyoo Pass. Note the hairy scape.


This image in its original context, on the page :



Frontal view of the flower of Pinguicula conzattii collected by A. Lau in Santiago Nuyoo Pass.. The spur is similar to the spur of Pinguicula agnata.


This image in its original context, on the page :



Close-up of the flower of  Pinguicula conzattii.


This image in its original context, on the page :


Winter rosette (in the centre of the plant) and the resting summer leaves of Pinguicula conzattii.


This image in its original context, on the page :



Close-up of the flower of Pinguicula conzattii in Vic's collection. 

Photo : Vic. Brown


Close-up of the flower of Pinguicula conzattii in Vic's collection. Note the hairy scape.

Photo : Vic. Brown


Typical "Bosque mesofilo de montana"  

It is located in ravines and in an area protected from wind and sun, which  favours a high air humidity. 


This image in its original context, on the page :


Santiago Nuyoo Pass.

Photo : BCST Vol. 16, 1998


Pinguicula conzattii in habitat in Santiago Nuyoo Pass, growing on mosses.


Photo : Alfred Lau



Pinguicula conzattii in habitat in Santiago Nuyoo Pass, growing on mosses. All the flowers are not white as the Oliver Gluch's plant above but have some violet also.


Photo : Alfred Lau


More pictures of Pinguicula conzattii can be seen in Fernando's postcard : link.

Musgos (mosses)

This image in its original context, on the page : briofita.htm

Musgos (mosses)

This image in its original context, on the page :