It has been 60 years since a professor, Sasuke Nakao, visited Bhutan for the first time as a Japanese in 1956. After his return home he wrote a travel note "Bhutan, the unexplored country" which was the first introduction of Bhutan to Japan.
The Kingdom of Bhutan has been preserving the environment and traditions as well as promoting modernization and democratization under the national policy of Buddhism and Gross National Happiness (GNH). It has been holding untouched nature in exchange for the inconvenience. It may be the last paradise on the earth for nature lovers.
For the purpose of watching all the blue poppies (Meconopsis) in the country I trekked mid-western regions of Bhutan for one month from mid-June, when the whole country is covered with thick monsoon clouds.

Meconopsis simplicifolia var. grandiflora

From its entire leaf the flower is named simplicifolia, and from big petals named variants grandiflora has many petals.
It looks very gorgeous. While M. simplicifolia is widely distributed from Tibet to Bhutan and Nepal, the individual flower is separately blooming without making a colony.
The col behind is Nyili la(pass) located between Jomolhari Base Camp and Lingshi. The altitude alt.s 4870m.
Mo Chu (river) starts to flow just under the mountain pass and goes to Punakha.
A caravan with foods and daily goods on the horse back goes through the pass.
 (East of Nyili La, atl. 4760m)
Trekking course (Walking on the blue line, moving on the red line by car The total mileage is close to 500km.)
(1) Bumthang = Dur hot spring = Menchugan round trip (June 17th to 27th)
(2) Haa-Rigona Lake-Haa circuit tour(June 30th to July 5th)
(3) Sele La (July 6th)
(4) Gunitzawa-Jomolhari BC (Jangothang) = Tsophu lake-Lingshi-Yale La-Thimphu (July 7th to 17th)
(5) Haa (Shana) = Tego La = Sele La = Haa round trip (July 18th to 19th)

(Detail of Mid-western Bhutan)
(from Google map)

(1) Bumthang = Dur hot spring = Menchugan (round trip)
This route located in the north of Jakar, the prefectural capital of Bumthang Province. Our trekking started from Dhur. In the beginning we went through the forest. Fortunately there were no leeches because it was over 3000m above sea (though there were tigers and bears ...).
   Streptopus paraimplex (Liliaceae)

It seems that small bells are hanging and bears bright red fruits in the fall.
Same type of flower is seen in sub-alpine zone of Japan.

(Chokchoma campsite, alt. 3200m)

 Cathcartia villosa (Papaveraceae)

This is the first poppy I encountered during the trek.
In the previous classification, it was a member of the blue poppy (genus Meconopsis). However, it is currently reclassified in the genus Cathcartia of Papaveraceae.

(North of Chokchoma campsite, alt. 3540m)

From the 2nd day of the trekking blue poppies were appearing.

 Meconopsis sinuata  
 
This species is distributed from southern Tibet to Bhutan and Nepal and seen in valley and forest floor where there is a lot of water.  

 
 
 (between Chokchoma and Tsochenchen alt. 3700m)
Meconopsis bella subsp. subintegrifolia

It is distributed through Central Bhutan to East India (Arunachal Pradesh) and often seen on the rocks where water drips. There are no thorns on the stems and leaves.
There are some variations in color and leaf shape. At this place there was wine color flower and white color one. Also there was flower with spoon-shaped leaves and laciniated in the shape of ones.

(Both are in the middle of Chokchoma and Tsochenchen alt. 3700m)
 M. bella in wine color     
  M. bella in white (maybe albino)

Two days later we also met M. bella with spoon-shaped leaves at Jule La, which is close to its type species.
 
(Jule La, alt. 4300m)

We found other rare flowers, two types of Cypripedium near by. This area looked like a hotspot of rare species.

Cypripedium Himaraicum  Cypripedium tibetacum 

The rhododendrons were in full bloom along Tsochenchen valley. While when we ascended it was in the fog, we had luckily fine and sunny day on our return trip.
The rocky peak with snow in the center is 5300m high above the sea, and beyond the peak there is Gankel Punsum (alt. 7570m), the highest peak in Bhutan and the highest unexplored peak in the world.
There is a yak cabin in the forest over the rhododendron, and the smoke for breakfast is rising. The trekking course continues to the left of the back of the valley.
  
  Rhododendron campanulatum subsp. aeruginosum  
         
  Bhutan is covered with Rhododendrons from late April to early July.
Doche La, east of Thimphu, is one of famous places for rhododendrons. But in late June there remains only in the highland.
 
 
(Tsochenchen campsite, alt4000m)
  
  
                Meconopsis simplicifolia subsp. simplicifolia

This is the type species of M. simplicifolia. The height is 60 to 70 cm.
It blooms one flowers on one stem by popping out of the bush of Cypress and Berberis. Sometimes it is bitten from the middle of the stem.

(North of Tsochenchen, alt. 4100m)

At the first hurdle of the trek, passing Jule La (alt. 4550m), I had a mild high-altitude illness and was not able to move forward easily.

Yellow Meconopsis were in full bloom around this pass and on the slope on the left bank of Jule Tso (lake).
  Meconopsis paniculata

This species is relatively large among the genus Meconopsis with about 2m high at the maximum. But in this area it is rather smaller as about 1m high.
There were a plenty of M.paniculata on the left bank of the lake while not at all on the right bank. Can't a blue poppy swin?

The habitat of M.paniculata is wide in the Great Himalaya Range, from Nepal to Bhutan and to Indo-china southern border.

(Left bank of Jule Tso, alt. 4100m)


M.paniculata had disappeared on the way from Jule Tso to Kuto La (alt. 4500m), but instead, Meconopsis horridula, the typical blue poppy, began to appear on both sides of the trail. Though I didn't notice on my ascend due to altitude-illness and earlier to flower. But on my return trip I enjoyed the horridulas just starting to bloom. In August this trail would be a flower road of M.horridula.
  Meconopsis horridula subsp. drukyulensis

M. horridula is widely distributed from China's Qing-hai province to Tibet, to Nepal, and to Bhutan. The flower colors are not only blue, but also pink and yellow. There are many variants.
This subspecies is unique in Bhutan.

(West of Kuto La, alt. 4200m)

After 1200m descending down on the muddy road from Kuto La we arrived Dur hot springs where is on the bank of Mande Chu flowing from the glacial lake of Gankel Punsum.
As same as old Japanese spa, local people come to the spa for about a week with their own food. I also stayed here one day to curing my high-altitude illness.
   Hot-spring hut  100% pure from the source (also drinkable)
     

Fortunately my illness was cured, but this time I got food-poisoned with a fresh salad I took that night, and I couldn't eat anything. Ascending 1200m again to Walthang pasture in the rain with painful feeling. I regretted my challenge at passing Nepu La (alt. 4500m) just before Walthang.
And the next day, we crossed the highest point in this trek, Saga La (alt. 4820m), and arrived the place where pink poppies were blooming. This is the highlight of this trek.
   Meconopsis sherriffii

British plant hunter George Sherriff found in Tsona of South Tibet in 1933. Other habits are known only 3 places in the mountainous area of Bhutan. Among them this Menchugan has the biggest population.
M. Sherriffii grows in collapsed land with exposed rocks and dwarfed cypress bush.

(North of Saga La, alt. 4400m)
 

 
There was a new finding. I found some M. simplicifolia, lone-star meconopsis, were blooming among M. sherriffii and there was a hybrid-like one with purple petals.
If the seed of this flower would have reproduced with same color flower next year, it may be a new species.
Can someone visit this place and collect seeds?
   
On the Yak pasture in Menchugan there were some hundreds of M. sherriffii were blooming, but regrettably most of them were past their prime. Our arrival seemed to be a little late.
   (Menchugan, alt. 4200m)
 

We came back to Bumthang on the same road, but I could watch the flowers I couldn't meet on the ascending way. And also the weather was nice, so I had seen a wonderful sight. It became a fruitful trek. As we were able to return to Thimphu one day earlier, we visited the Institute for Biodiversity in Thimphu and watched samples of blue poppies it contained.

(2) Haa-Rigona Lake - Haa (circuit trip)
Haa prefecture was recently opened to foreigners (2010). Since the Chinese border is closer and an army (Indian army) was stationed, something felt pomp and circumstance even in a relaxed atmosphere.
Trekking started from the suburbs of Haa, the prefectural capital. When arriving the ridge in a day and a half, there was a rocky area and grassland where yaks were grazing..
   Distant view of Haa Valley

Fish-rich Haa Chu (river) flows through the valley. (Bhutanese never eat fish because they admire them and worship for the religious reason).
There is a monastery on the small hill in the center where our trekking started.
The blue roof at the bottom left of the screen is the Indian Army garrison.

(View from the motorway to Chele La)

   
   (Chishorumpa, alt. 4200m)
 Meconopsis superba

This is one of large type of Meconopsis along with M. paniculata. The height well over 2m. It grows on the rock walls and places where there is a flow, such as the fall of a stream. This is the only meconopsis with white flowers except for albino. It is an endemic of Haa district.
 
  (Tsuonsaka, alt. 4100m)

 
 Meconopsis elongata
 
M. Elongata grows in the vicinity of M. Sperva blooming and also near the stream.
This flower has used to be classified as M. horridula but was reclassified as a new species in 2016.
Elongata means "long" and the characteristic is to have white line on the lower part of the anthers of the stamens.

(North of Wonjitang, alt. 4300m)
     
 
   Bistorta macrofila
   
Ascending to the pass, a pink carpet of Bistorta was spreading widely on the surface. As yaks graze mainly Gramineae to the roots the ground becomes a turf. Then Bistorta (Polygonaceae) which yaks never eat flourishes like a bed with full of flowers.
Cologne is built on the pass, and people passing by are piling a small stone or a branch of flowers on it one by one.

(Gonche La, alt. 4100m)
 
  Potential new Meconopsis species

A horseman accompanying with us took a shot of this flower with his smartphone near the Chinese border. (smartphone screen image)
This area is strictly off-limited for foreigners due to military reasons.
 

(3) Haa - Chele La - Paro
Chele La is a pass between Haa and Paro, the highest point is 3988m above the sea.
Poles of prayer flag, Darsin, are standing like trees on the pass, and Lunta are dancing with wind. If it is fine Jomolhari can be seen from there, but that day she was hidden in the clouds. Meconopsis were blooming on the steep slope further south from the pass.
Chele La is located in two and a half hours drive from Paro Airport. This is one of easy-access spots where you can find blue poppies conveniently.
   ←left
 Meconopsis elongata
 right→
Meconopsis aff. horridula

These two species in Chele La have been confused with the same species for a long time. However when comparing both, the flowers attaching style, leaf shape and bristles are different.
Also, M. elongata has a white part on the anthers as described above.

(South of Chele La, alt. 3960m)
 
     
  Meconopsis paniculata

M. paniculata can be seen everywhere in the highland areas in Bhutan.
However, we could watch the white one (albino) only in Chele La.
(Reddish M.paniculata could be seen on the left bank of Jule Tso lake).

(East of Chele La, alt.3800m) 
 

Before entering Paro after descending from Chele La there is an Institute of Seed Research (concurrently Agricultural Mechanization Center). Next to it there is a small temple and a big Chorten (Stupa) in it. This is the memorial tower and tomb of Kyoji Nishioka, a Japanese who is admired by every Bhutanese. He had been dedicated his life to agricultural development in Bhutan. For his effort the king of Bhutan gave him Dashaw (rank) and a sword. He was the only foreigner who received such honor in Bhutan.
When I visited here monk's sutra chanting were flowing out of the temple without stopping.

(4) Paro - Gunitsawa - Jomolhari BC (Jangothang) = Tsophu - Lingshi - Yale La - Thimphu(circuit trip)
This trekking course is the most popular in Bhutan and crowded by many trekkers in the high season (autumn to spring). However in the monsoon season the course is quiet while local peddlers were carrying cargo and Indian workers were conveying power development materials.
From Jomolhari Base Camp (BC), I followed the course that trekkers rarely go to and walked to Thimphu. It was a tough course that crossed 5 passes over 4500m, but there were many pleasant findings.
     Thalictrum chelidonii (Himalayan Meadow Rue)

Jomolhari trekking used to be started from Druk Zhong which has been abandoned due to fire, but now we can drive to Gunitsawa ahead of Shana, so we can shortened the trekking periods.
Although the road is well maintained, as there is a lot of traffic for people and horses, so the road becomes muddy. On the 1st day we had no flowers to watch other than this Thalictrum before arriving campsite Tantanka, so we just walked.
(between Gunitsawa and Tantanka, alt. 3400m) 

 When approaching Jomolhari BC, primroses and onosma began to appear as the surrounding scene moving to grasslands from forest belt.
 
 Meconopsis primulina
 
A small meconopsis with a height of 20 to 30 cm. It blooms under the bush and in moist cliffs. It comes to see before Jomolhari BC, and blooms at a considerable density in Tsophu Lake and Lingshi valley.
The name "primulina" comes from primrose. But I have no idea whether the leaves like primroses or the habit is same dump place as primroses.
(South of Jangothang, alt. 3800m)
 

Jomolhari BC is most crowded in the dry season (from September to April) when the top is clearly visible. At that time it is said that 400 tents were appeared at the campsite. This time, a European couple and myself occupied a large campsite.
The Goddess with 7314m high smiles at me though it was only about 30 minutes.
East face of Jomolhari

My destination in Jomolhari BC was Lake Tsophu on the opposite side of Mt. Jomolhari. Ascending up 400m high to the top of end moraine (remains of glacier terminal) there are two lakes called Twin Lakes. Around the lakes there were many meconopisis blooming in addition to Bhutan's unique meconopsis.
     Meconopsis bhutanica

It is used to be considered as a subspecies of M. discigera with yellow flower, but it was classified as a new species in 2012. Because it is endemic to Bhutan, it got the name of bhutanica.
It is about 1m high and the flowers are large as 15cm in diameter.
And more characteristically the flower color is gradually changing from purple at the beginning of bloom to blue over the time.

(West of Tsophu, alt. 4380m)
   
  Meconopsis aff. horridula

Usually, M. horridula has one flower to the stem, however, this horridula looks like to have several flowers to one stem.
But, in fact, the stems stick together and look like one stem.
The lake in the back is Lake Tsophu. If it's clear, you can see the sharp peak of Jichu Drake on the other side of the lake.

As there is trout-like fish I tried fishing but no catch.

(East of Tsophu, alt. 4450m)
 

We headed from Jomolhari BC, cross Nyili La (alt. 4764m) to Lingshi. There was yaks' summer pastures on the way, and they were grazing grass in relax.
In the scree over the pass, there were flowers of the Asteraceae wearing sweatshirts and flowers well-integrated with the scree circumstance.
  Saussurea gossipphora

Wearing cotton to protect the flowers from the cold, so it is called a sweater plant. As the flower is also used as Chinese medicine, it is robbed and smuggled via Tibet. The army checkpoint has the duty to control smuggling.
    Soroseris glometara

Maximum width is about 27 cm, and the flower is 7cm in diameter. The color is almost same as ground.

At this time Lingshi valley turns to a secret flower garden. Various flowers such as bistorta, primula, pediclaris, buttercups and so on are fully blooming along the stream.
M. Primulina is also dense and blooms every 1m here, so it is no longer a rare flower.
   
(At the turnoff for Lingshi Zhong, alt. 4370m)  M. Primulina

From the Lingshi campsite, the magnificent scene of the peaks and glaciers had been seen. It is said that even in the dry season trekkers are not able to see such a gorgeous landscape.
From the left, Jomolhari (small hump on the left), Jichu Drake (alt. 6989m), and Teringan (alt. 6789m). The small cabin in the meadow is an amy checkpoint.


From here, we turned to south and passed through Yale La (alt. 4930m), Lhede La (alt. 4750m), Yasu La (alt. 4400m), and finally returned to Timphu. The course from Lhede La is the road that only local yak grazers can take, but it has wonderful views like Switzerland, and provides us with a rarely seen blue poppy.
   Meconopsis horridula subsp. drukyuensis

  There was a M. horridula with white flower among normal blue ones. Not only the petals, but also the stamens were turned in albino.

Yale La is on the left saddle at the top left, where we had crossed over.

 (South of Lingshi, alt. 4200m)
 
 Meconopsis bhutanica

  So far M. bhutanica has been seen only around Tsophu near Jomolhari BC. This time we could find a new habitat thanks to taking our trekking course from Shodo to Lhede La.

This M.bhutanica looks smaller (50 cm high) and less flowers than that of Lake Tsophu.

(North of Lhede La, alt. 4550m)
 

Viewing southern valley (Shomthang valley) from Lhede La. Yaks are grazing leisurely. If they were milk cows, we were in Switzerland.
   
   
Meconopsis polygonoides 
 
There is no glitz and glamour like M. horridula or M. simplicifolia, but it is a neat and clean flower which is blooming quietly in the bush and shrub. There is a large colony when you entered in Takethang valley beyond the Gorge of Shomthang.

←(Takethang valley, alt. 4050m)

(Beneath Lingshi Zhong, alt. 4070m)
 
 
Meconopsis aff. horridula
 
The stem is as tall as 1m to the tip with the fruit. There are various shapes still unstudied.

(North of Nabtsho, alt. 4000m) 
   

 
(glance at inside)  

Greenhouse plants protect their green shoots and young buds by curling leaves from cold. Also they provide a warm shelter to insects to carry their pollen.
←Saussurea obvallata
A bract looks like a candle light. Indian Sikhs collect this to give them to God.
(Takethang valley, alt. 4350m)
 
 Rheum nobile    →
Although it is Polygonaceae, it is edible and the texture is like a cauliflower. In Chinese medicine it is used as laxative, so you should be careful after eating. Even a Bhutanese who do not show interest to blue poppies takes a picture when he meets Rheum nobile.
(South of Nabtsho, alt.4400) 
   The difference is clear between Asteraceae (left) and Polygonaceae (right).  

After descending we stayed overnight at Monastery and returned to Thimphu. There is a plan to build a cable car from the trail start point near Thimphu to Phajoding. When it is completed, you will be able to see these rare alpine plants including blue poppies in one or two days. However, this may lead to make the trail road rough and littered (in fact there were a lot of garbage on the way to the holy lake Dung Tso from Phajoding).
As Bhutan is the country that prioritizes nature protection over development, so I hope it will not happen.

(5) Haa (Shana) = Tego La = Sele La = Haa (round trip)
The last trek is a two-day picnic at the base of the pass. As the president and his wife of a traveling company joined it was like a company trip with banquet. Since the flowering time of meconopsis seen here is from mid to late July, we decided to visit Haa twice.
   
Meconopsis wallichii subsp. fusco-purpurea
Two days before we headed to Sele La, there was a heavy rain in the western Bhutan and rivers were rising. A bridges was washed away, and a truck that was passing over fell into the river, causing many casualties. Even a bridge on the way up to Sele La was washed away and timbers were piled up like a dam, which making it impossible for us (and our horses) to go through. So we changed our schedule (the Japanese group that came in the previous day turned back from the middle) and set up a camp near the washed-out bridge.
The next day, we went up along the river where the flow became quiet and arrived at Sele La. Fortunately, we could meet the flowers that were starting to bloom.

(East of Sele La, alt. 3700m)

This time I have not visited eastern Bhutan because I have been in Arunachal Pradesh of India last year (2015), where borders eastern Bhutan and I watched blue poppies there.There grows the national flower of Bhutan, Meconopsis gakyidiana (formerly known as M. grandis subsp. orientalis).
This flower was discovered in 1933 by the discover of pink poppies, George Sherriff, and reclassified as new species in 2016. However Bhutanese people even call M. horridula and M. simplicifolia as the national flower of Bhutan. What an easy-going country!
 Meconopsis gakyidiana

A relatively large sized blue poppy distributing Mela-Sakteng in Trashigang Province, eastern Bhutan to Arunachal Pradesh of eastern India.

(Bangajan, Arunachal Pradesh, alt. 4200m)
 

For over one month I have trekked with Bhutanese guides and staff and learned a lot about Bhutan and Bhutanese.
Bhutan has a national land area smaller than Japan's Kyushu island, with over 700,000 people (almost the same as Shimane Prefecture). However, she sends an ambassador to the United Nations and holds an army, two airline carriers, two mobile phone companies. The king has have enormous popularity and a high-support ratio, the matriarchal system remains strong, women live with vitality, and the habit of crawling at night still remains - a mysterious country!
I have also questioned about the National Happiness. If I have a chance I will tell you in the future.

Thank you for watching until the end.

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2021.10.14 upload


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