Question: Are Petrophytum and Townsendia both in the rose family?
Context: Petrophytum (orth.  var.  Petrophyton) is a small genus of plants in the rose family known as the rock spiraeas or rockmats.  These are low mat-forming shrubs which send up erect stems bearing spike inflorescences of flowers.  The brushy flowers are white and have many stamens and hairy, thready pistils. Rockmats are native to western North America. Rosa virginiana, commonly known as the Virginia rose, common wild rose or prairie rose, is a woody perennial in the rose family native to eastern North America, where it is the most common wild rose.  It is deciduous, forming a suckering shrub up to 2 metres in height, though often less.  The stems are covered in numerous hooked prickles.  The leaves are pinnate, usually with between 7 and 9 glossy leaflets.  The pink flowers are borne singly or in small clusters and appear over a long period in midsummer.  The fruits are small, round and bright red. Rosa gallica, the Gallic rose, French rose, or rose of Provins, is a species of flowering plant in the rose family, native to southern and central Europe eastwards to Turkey and the Caucasus. Townsendia leptotes is a species of flowering plant in the aster family known by the common names common Townsend daisy and slender townsendia.  It is native to the western United States, where it grows in the alpine climates of high mountain ranges from California to Montana to New Mexico. Townsendia condensata is a species of flowering plant in the aster family known by the common names cushion Townsend daisy and cushion townsendia.  It is native to North America where it is known from many scattered occurrences in the mountains of the western United States and Alberta in Canada.  It is mainly limited to the alpine climates of high mountain peaks, where it grows in meadows, tundra, and barren, rocky talus.  It grows alongside other alpine plants such as "Eriogonum androsaceum". Petrophytum cinerascens (orth.  var.  "Petrophyton cinerascens") is a rare species of flowering plant in the rose family known by the common names halfshrub rockmat and Chelan rockmat.  It is endemic to the state of Washington in the United States, where it occurs in just a few locations along the Columbia River in Chelan and Douglas Counties. Rosa carolina, commonly known as the Carolina rose, pasture rose, or low rose, is a shrub in the rose family native to eastern North America, where it can be found in nearly all US states and Canadian provinces east of the Great Plains. Petrophytum caespitosum (orth.  var.  Petrophyton caespitosum) is a species of flowering plant in the rose family known by the common name mat rock spiraea. Commonly known as hellebores , the Eurasian genus Helleborus consists of approximately 20 species of herbaceous or evergreen perennial flowering plants in the family Ranunculaceae, within which it gave its name to the tribe of Helleboreae.  The scientific name "Helleborus" derives from the Greek name for "H. orientalis", ἑλλέβορος "helléboros", from "elein" "to injure" and βορά "borá" "food".  Many species are poisonous.  Despite names such as "winter rose", "Christmas rose" and "Lenten rose", hellebores are not closely related to the rose family (Rosaceae). Townsendia is a genus of North American plants in the aster tribe within the daisy family.
Answer: no