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.
The tea is made from the hibiscus flower of which there are over 200 species. For hibiscus tea, the Hibiscus sabdariffa species is prevalent in North Africa, Thailand, the Caribbean, and Latin America.The hibiscus plant itself is a shrubby tropical plant that produces flowers with reddish-purple centers.he tea is made from the hibiscus flower of which there are over 200 species. For hibiscus tea, the Hibiscus sabdariffa species is prevalent in North Africa, Thailand, the Caribbean, and Latin America.