Kalanchoe beharensis ‘Fang’

Kalanchoe beharensis ‘Fang’ ;

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Kalanchoe beharensis Drake ?? : 5 posts by 2 authors. Attachments (3)- around 800 kb each. 

Location:  Soureni, India 
Date: 7 May  2018
Altitude: 4000 ft
Habit : Cultivated 

could be, the crinkly  edges of a succulent plant leaf with browning hairs on the top end and some edges would certainly point us to this diagnosis, BUT
BUT
MY BUT is this:
never seen spine like projections on the under-surface of the leaves in this plant before, have seen a few.
Since this seems to be indoors, may not be a stress response by the plant.
wonder what is it due to?
or may it is a different plant altogether.
and did it ever flower?
any pictures of it flowering?
found it at this page

scroll down about 35% into the page, and this is what Dr Stein 
(he is a dentist in southern california, writes for daves garden.. and owns a lot of succulents.)
and i quote
” Kalanchoe ‘Fang’ is a Kalanchoe beharensis hybrid (possibly 
with K. tomentosa, some claim?) that is a much shorter plant, and certainly
 a less vigorous grower, but a common one in cultivation.This plant has heavy, 
succulent very fuzzy leaves with teeth-like knobs 
over the leaf surface (the “‘fangs,” perhaps?) ” end quote…

Kalanchoe beharensis fang  ??

may be best written as

I have seen an alternate: Kalanchoe beharensis ‘Fang’.

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