This episode sponsored by Fiberpad, where you can glue duct-taped wheatgrass and fiberglass to your face in order to clear up any blemishes nice. What can limestone do for you and how does it form? A long, winding rant through the mountains of Querétaro about habitats and species encountered at elevations between 6,000' and 10,000' including: Karwinskia humboldtiana (Rhamnaceae) Baccharis conferta (Asteraceae) Penstemon campanulatus (Plantaginaceae)  Ariocarpus kotschoubeyanus (Cactaceae) Kadenicarpus pseudomacrochele (Cactaceae) Isolatocereus dumortieri (Cactaceae) Opuntia stenopetala (Cactaceae) Pinguicula moranensis (Lentibulariaceae) Quercus crassipes (Fagaceae) Agave salmiana subsp. crassispina (Asparagaceae, Agavoideae) Dasylirion longissimum (Asparagaceae, Nolinoideae) Various Stevia sp.  (Asteraceae) featuring mountains made out of marble, seafloors made out of calcium-rich muck, and much more.