Are Veratrum and Leontopodium genuses of plants that are found in the same family?
no
Title: Veratrum
Passage: Veratrum is a genus of flowering plants in the family Melanthiaceae.  It occurs in damp habitats across much of temperate and subarctic Europe, Asia, and North America.
Title: Leontopodium
Passage: Leontopodium is a genus of plants in the Asteraceae family (which also includes daisies and sunflowers).  The genus is native to Europe and Asia.  The fuzzy and somewhat stocky "petals" (technically, bracts) could be thought of as somewhat resembling lions' paws —hence the genus name combining "léōn" (lion) and "pódion" (foot).
Title: Aceria clianthi
Passage: Aceria clianthi is a species of mite belonging to the family Eriophyidae.  It is found only in New Zealand.  It is notable for being host specific to threatened plants of the genus "Clianthus".  It is classified by Buckley "et al." as "nationally critical" under the New Zealand Threat Classification System.  They stated ""Aceria clianthi" (Eriophyidae), has been recorded only from kakabeak ("Clianthus" spp.)  in cultivation and once on "Lotus cornalatus" ["Lotus corniculatus"] (Fabaceae), an introduced plant growing near kakabeak (Martin 2009).  It is given the same threat classification as kakabeak (de Lange et al. 2009)."  Heenan had earlier stated that "the two species [of "Clianthus"] are considered to be threatened, with "C. maximus" having a rank of vulnerable, whereas "C. puniceus" is critically endangered", but the conservation status of "C. maximus" was subsequently found to be more serious.  These threat classifications for "Clianthus" apply to plants in the wild, but the species are widely cultivated.  "Aceria clianthi" occurs on both plants in the wild and in cultivation.
Leontopodium Veratrum