Tag: pictorial feature of plant kingdom

Ephedra is a bushy trailing, climbing or creeping herbaceous gymnosperm. It is a genus of gymnosperm shrubs. It is used as medicine for treating asthma, hay fever and cold. 

• Gametophytes of liverworts, mosses, and ferns are independent and so are free-living.
• Gymnosperms and some ferns are heterosporous, meaning has two different types of spores.
• Sexual reproduction in Fucus, Volvox, and Albugo is monogamous meaning they have small flagellated male gamete and large non-flagellated female gamete.
• The sporophyte of moss is more elaborate than the liverworts.
• Pinus is monoecious while Marchantia is dioecious.

The Cordaitales and the Benneitales are the two extinct lines of Gymnosperms. The former existed during the paleozoic and early mesozoic era and have been regarded as an ancestral stock from which the modern conifers and Gnetales might have originated.

Ephedrine is a medicinal preparation obtained from the plant Ephedra, a genus of Gymnosperm and the only genus in its family, Ephedraceae, and order, Ephedrales. While there are various species of Ephedra, which are widespread, these are native to North America, south America, southern Europe, Africa central Asia and China. The plants of the genus Ephedra, especially E. sinica has been traditionally  used for a variety of medicinal purposes, including treatment of asthma, common cold and hay fever.

Sequoia trees are evergreen conifers. It is a member of Coniferale, family (also known as Pinnales). It is an evergreen, long-lived, monoecious tree living 1,200–1,800 years or more. It is a typically reddish brown tree with a brownish soft thick bark and are found on the western slopes of California.

The conifers are cone-bearing seed plants. Most are trees, some are shrubs. They are formally the division Pinophyta or Coniferophyta.