× Phyllosasa

{{Short description|Genus of grasses}}

{{Speciesbox

| image = Hibanobambusa 001.jpg

| image_caption = × Phyllosasa tranquillans

| display_parents = 4

| genus = × Phyllosasa

| parent_authority = Demoly

| species = tranquillans

| authority = (Koidz.) Demoly

| synonyms_ref = [http://apps.kew.org/wcsp/namedetail.do?name_id=451563 Kew World Checklist of Selected Plant Families][http://www.ipni.org/ipni/advPlantNameSearch.do?find_genus=Hibanobambusa&find_rankToReturn=gen The International Plant Names Index]

|synonyms =

• × Hibanobambusa Maruy. & H.Okamurak, not validly published
• Semiarundinaria × tranquillans Koidz.
• Sinarundinaria × tranquillans (Koidz.) Muroi
• Phyllostachys × tranquillans (Koidz.) Muroi
• × Hibanobambusa tranquillans (Koidz.) Maruy. & H.Okamura
• Sinarundinaria × nipponica Muroi
• × Hibanobambusa tranquillans f. kimmei Muroi

}}

× Phyllosasa is a nothogenus (genus of hybrid origin) of Japanese bamboo in the grass family.Demoly, Jean-Pierre 1995. Bambou; periodique illustre 21: 14[http://www.tropicos.org/Name/50305964 Tropicos, × Phyllosasa Demoly ]

It consists of a single nothospecies of bamboo, × Phyllosasa tranquillans, native to woodland in southern Honshu in Japan.{{cite book | last = Ohrnberger | first = D. | title = The Bamboos of the World | publisher = Elsevier Science | year = 1999 | pages = 596 | isbn = 978-0-444-50020-5}}{{cite book|title=RHS A-Z encyclopedia of garden plants|year=2008|publisher=Dorling Kindersley|location=United Kingdom|isbn=978-1405332965|pages=1136}} It is considered to be a hybrid between Phyllostachys nigra var. henonsis and Sasa veitchii f. tyugokensis.

It is a spreading, clump-forming bamboo growing to {{convert|2.5|m|ft|0|abbr=on}} tall, with very dark green leaves {{convert|25|cm|0|abbr=on}} or more in length. The variegated cultivar 'Shiroshima' is found in cultivation.{{cite web|title=RHS Plant Selector - Hibanobambusa tranquillans 'Shiroshima'|url=http://apps.rhs.org.uk/plantselector/plant?plantid=2053|accessdate=10 June 2013}}