The primary cause of respiratory alkalosis is hyperventilation. This rapid, deep breathing can be caused by conditions related to the lungs like pneumonia, lung disease, or asthma. More commonly, hyperventilation is associated with anxiety, fever, drug overdose, carbon monoxide poisoning, or serious infections.
By Rhonda Stewart. Lady Fern is a native perennial upright fern that can reach 2-5 feet in height. The leaves are a bright green, with a fine-textured lacy appearance, and single fronds can measure up to 1â wide and 3â in length. The frond stalks are green to purple or red in color.
Southern Shield Fern {24 Pots - 3 1/2 in.}. What Southern Shield Fern brings to any garden is classic beauty with her shiny, patent-leather-like green foliage and upright growth habit reaching heights up to 4 feet and widths of 1 foot. Her vibrant aloe-like color is typical of ferns and as such offers an evergreen show in warmer areas.