Pulmonary blood pressure is normally a lot lower than systemic blood pressure. Normal pulmonary artery pressure is 8-20 mm Hg at rest. If the pressure in the pulmonary artery is greater than 25 mm Hg at rest or 30 mmHg during physical activity, it is abnormally high and is called pulmonary hypertension.
Plant Types. Tropical hibiscus (Hibiscus rosa-sinensis) are evergreen, or shrubs that keep their leaves all year. On the other hand, hardy hibiscus, members of the genus Hibiscus with more than 200 species, are deciduous. Their leaves die off in winter. They have heights up to 15 feet and widths from 4 to 8 feet.
Hibiscus Hibiscus, a beautiful flower, is a genus of the mallow family. It is less widely known as the rose mallow. The flowers can be either annual or perennial and different species are native to many different countries. Hibiscus rosa-sinensis is the national flower of Malaysia while Hibiscus syriacus is the national flower of South Korea. The hibiscus flower itself is also the national flower of Haiti and is the state flower of Hawaii. In Hindu worship, the red hibiscus flower is the flower of the goddess Kali and is used in sacrifice to her and the Lord Ganesha.