Question: Are Mertensia and Sasa plants from differing genuses?

full_context: Document 1: Mertensia oblongifolia: Mertensia oblongifolia is a species of flowering plant in the borage family known by the common names oblongleaf bluebells and sagebrush bluebells.
Document 2: Semiarundinaria fastuosa: Semiarundinaria fastuosa, common names Narihira bamboo, Narihira cane, and Narihiradake, is a species of flowering plant in the grass family Poaceae, native to Japan. Growing to 7 m tall by 2 m broad, it is a vigorous, evergreen bamboo with dark green cylindrical canes and dense tufts of lanceolate, glossy green leaves, up to 20 cm long.
Document 3: Fargesia: Fargesia is a genus of Asian bamboo in the grass family. They are native primarily to China, with a few species in Vietnam and in the eastern Himalayas. Some species are cultivated as ornamentals, with common names include umbrella bamboo and fountain bamboo.
Document 4: Sasa (plant): Sasa (Japanese: ササ or 笹 ), also called broad-leaf bamboo, is a genus of running bamboo. These species have at most one branch per node.
Document 5: Mertensia maritima: Mertensia maritima a species of flowering plant in the borage family known by the common names oysterleaf, oysterplant or sea bluebells.
Document 6: Mertensia bella: Mertensia bella is a species of flowering plant in the borage family known by the common names beautiful bluebells and Oregon lungwort. It is native to the northwestern United States, where it grows in wet mountain habitat. It is a perennial herb producing a slender, erect stem and caudex unit up to half a meter tall. The rough-haired leaves are alternately arranged and borne on petioles. The inflorescence is an open array of clustered bright blue, bell-shaped flowers up to a centimeter wide at the lobed mouths.
Document 7: Sasa palmata: Sasa palmata is a species of low-growing, shade-tolerant bamboo that is native to Japan. It is known as broadleaf bamboo or broad-leaved bamboo.
Document 8: Nemophila phacelioides: Nemophila phacelioides is a flowering forb native to Texas, Oklahoma, Louisiana, and Alabama. The plant has medium-sized blue or purple flowers, and is an annual plant. The flower is known commonly as baby blue eyes, Texas baby blue eyes, largeflower baby blue eyes, or flannel breeches.
Document 9: Mertensia ciliata: Mertensia ciliata is a species of flowering plant in the borage family known by the common names tall fringed bluebells, mountain bluebells, and streamside bluebells.
Document 10: Phyllostachys parvifolia: Phyllostachys parvifolia is a running bamboo with thick culms that grow tall for a bamboo that endures cold weather.
Document 11: Dracaena braunii: Dracaena braunii is a species of the genus "Dracaena". It is also known as "Dracaena sanderiana", after the German–English gardener Henry Frederick Conrad Sander (1847–1920). Common names include Sander's dracaena, ribbon dracaena, lucky bamboo, curly bamboo, Chinese water bamboo, friendship bamboo, Goddess of Mercy plant, Belgian evergreen, and ribbon plant. Although the word "bamboo" occurs in several of this plant's common names, "D. braunii" is of an entirely different taxonomic order from true bamboos. Despite several of its common names that suggest it is from China or Belgium, it is a native African species.
Document 12: Mertensia longiflora: Mertensia longiflora is a species of flowering plant in the borage family known by the common names small bluebells and long bluebells.
Document 13: Campanula lactiflora: Campanula lactiflora, the milky bellflower, is a species of flowering plant in the genus "Campanula" of the family Campanulaceae, native to Turkey and the Caucasus. It is a medium-sized herbaceous perennial growing to 1.2 m , with narrow, toothed leaves 5 - long. Large conical clusters of open, star-shaped flowers are produced on branching stems in summer. In favourable conditions it will self-seed with variable results. The flowers are usually white or pale blue, but numerous cultivars have been developed for garden use, in a range of colours.
Document 14: Mertensia: Mertensia is a genus of flowering plants in the family Boraginaceae. They are perennial herbaceous plants with blue or sometimes white flowers that open from pink-tinged buds. Such a change in flower color is common in Boraginaceae and is caused by an increase of pH in the flower tissue. "Mertensia" is one of several plants that are commonly called "bluebell". In spite of their common name, the flowers are usually salverform (trumpet-shaped) rather than campanulate (bell-shaped).
Document 15: Phyllostachys heteroclada: Phyllostachys heteroclada, the fishscale bamboo, also known as "water bamboo", is a running bamboo. The water bamboo name comes from the air canals in the rhizomes and roots that allow this bamboo to grow in more saturated conditions as compared to similar species. This species can also have abrupt kinks at the base of the culms. Maximum height can reach 35+' with a diameter of 2". Cold hardy to around -5F. Grows well in USDA zone 6b-10.
ground_truth: yes