- Flower nameIwagirisou
- Scientific nameOpithandra primuloides
- Aliasオピタンドラ プリムリオイデス, 岩桐草
- Place of originJapan
- Place of floweringGreenhouse
- Flowering seasonMay, June
What is Iwagirisou
Iwagirisou (scientific name: Opithandra primuloides) is native to Japan, and is a summer green perennial of Gesneriaceae family. It spontaneously grows on rocky places and trees in the Kinki-west to Shikoku, Kyushu. It puts out a lot of root leaves from the rhizomes. In the early summer, several stems of flowers are stretched from between the leaves, and about 10 pieces of purplish red flowers are bloomed in a scattering inflorescence. The Japanese name grows on the rock and it depends on the leaves resembling paulownia.
Common name: Iwagirisou, Scientific name: Opithandra primuloides, also known as: Opithandra primuloides, origin: Japan, habitat distribution: Kinki west to Shikoku, Kyushu, Environment: rocky place and trees, plant length: 15-20 cm, leaf color: green, leaf shape: egg shape to wide ovoid, leaf height: 4-10 cm, petiole: the same length as leaves Inflorescence: leaf margin: blunt saw blade, flower color: red purple · white (variant), inflorescence: inflorescence, bilateral symmetry, flower stem length: 12-15 cm, corolla: funnellike lip shape Flower length: 2 cm, flowering period: May - June, stamens number: 2, calyx: 5 seeds, fruit type: fruits.