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.
The term fern refers to any of about 12,000 species of plants that do not produce flowers or seeds, instead reproducing by spores. Ferns have been in existence for over 300 million years.Many ferns are easily recognizable because of their fronds, or lace-like leaves.he term fern refers to any of about 12,000 species of plants that do not produce flowers or seeds, instead reproducing by spores. Ferns have been in existence for over 300 million years.