Please help me find correct colloquial term/s used to name a leaf vegetable of brassicaceae family which is called RAYO Sag in Nepali.

Please mention all terms used.

Visit local Farmers market they might sell it. Specially sold by Asian America.
I have not seen in regular store but Chinese/Indian/Vietnamese groceries store sell it.
Right now use Rappi green / mustard green or bok choy ( Chinese leafy green )

Moolaa ko Saag - (मूला को साग) - Radish Greens
Bethe ko Saag - (बेथे को साग) - Lamb's Quarter
Latte to Saag - (लट्टे को साग) - Amaranth
Moolaa ko Duku re Saag - (मूला को दुकु र साग) - Radish Shoots and Leaves
Rayo ko Duku re Saag - (रायो को दुकु र साग) - Leaf Mustard Shoots
Gante Moola ko Saag or Dalle Moola ko Saag - (गानते मुलाको साग, डल्ले मुलाको साग) - Turnips Greens
Salad ko Saag or Paat - (लेट्तुस - सलाद को साग) - Curly Leaf Lettuce
Bok Choy or Paak Choy - (बक चोय अथवा पाक चोय)
Lataree ko Saag - (लटरी को साग)
Lunde ko Saag - (लुन्ड़े को साग) - Redroot Pigwood - (different variety Pahadi Lunde, Kande Lunde)


http://tasteofnepal.blogspot.com/2013/02/green-leafy-vegetables-part-3.html

Related to thread, yo chamsur Ko saag lai k Blanchan ra kata paiela??

I have seeds for Chamsur, you want it ?

Chamsur is garden crest

Garden Cress picture does not look like Chamsur sag.