The English word rose is derived from French, which originally is borrowed from Latin Rosa. Belonging to the genus Rosa, roses are very popular ornamental plants that are grown outdoors as well as indoors. The following is a description of the subgenera and sections of the genus Rosa.
Subgenera of the Genus Rosa
Genus Rosa has been categorized into 4 subgenera namely, Hulthemia, Platyrhodon, Hesperhodos, and Rosa. The first three subgenera have one or two species in the category while Rosa contains 11 sections.
It was earlier called Simplicifoliae, which means having single leaves. This subgenus comprises two species from southwest Asia – Rosa persica and Rosa berberifolia. The latter is also known as Rosa persica var.berberifolia (a variation of Rosa persica).
Rosa persica originally belongs to the steppes and deserts of Afghanistan, Iran, Western Siberia and Central Asia. It is notable for having a single leaf and lack of stipules. Though it is difficult to grow in gardens, it grows as a weed with deep roots.
These Types of Roses are the only ones that do not have stipules and compound leaves.
The word platyrhodon is derived from the Greek, which indicates flaky rose. Just one species fall in this subgenus and it is called Rosa roxburghii. It is native to East Asia.
R. roxburghii grows as a shrub and its stem is woody. The bark has the tendency to peel. It can reach a height of 5m when mature. The thorns are few in number and appear in pairs at the bases of the leaves.
This species has been named after the superintendent of the Calcutta Botanic Garden, William Roxburghii.
Derived from the Greek, this term means western rose. This subgenus carries two species and both of them are native to North America. They are namely, Rosa stellata and Rosa minutifolia.
R. minutifolia is commonly referred to as Baja rose and also as small-leafed rose. Native to San Diego (California) and Baja (California), it grows as a very thick shrub and is very spiny. The flowers are normally bright-pink colored with hordes of prickles found on the undersides.
Having common names such as the desert rose and star rose, R. satellite can be found growing on rocky surfaces in Texas. In New Mexico and Arizona, they grow in the canyons. These Types of Roses can be grown effortlessly as ground cover. With trifoliate leaves, rich purple flowers bloom during the summer.
This subgenus includes those roses which have not found a place in the other 3 categories. It is classified into 11 different sections of roses from around the world.
Canina – The pink and white wild roses that fall in this species are found chiefly in North Africa, Europe, and Asia.
Gallicana – Stripes and colors ranging from pink to cherry red are the features of this wild rose. Some of the examples include Gallica roses, moss roses, Centifolias and Damask roses.
Laevigata – It is a white species of rose, which is originally from China. Currently, it is grown in the Southern United States.
Rosa – A huge variety of red, pink, mulberry, lilac, and white roses is included in this category. The flowers are found everywhere except in North Africa.
Bracteata – It is white or near-white colored flowers, which originated in China. Today, it is known by several names – Macartney Rose, Rose Blanche Simple, Kakayan Bara, Yaeyama-No-Ibara, and R. Bracteata.
Carolina – A majority of pink, vivid pink and whitish pink roses belong to this group. They are called pasture roses, R-Parviflora, Sand Roses and R. humilis.
Chinensis – It is exclusively grown in China and is a popular choice for gardens. The color varies from pink to light pink. Other varieties of the same species can be spotted in yellow, red, and a blend of these two colors. The flowers of these Types of Roses are known as Daily Rose, Bengal Rose, and China Rose.
Gymnocarpa – Two species of gymnocarpae roses are there – one is found in East Asia and the other one in North America. It is known as Rosa gymnocarpa, Little woods rose and gymnocarpa.
Pimpinellifolia – A mauve, pink, yellow striped and white based species of rose is the native of Europe and Asia. Commercially, it is known as Scots rose, Burnet rose, Duinroos, Rosa rubella and Scotch Briar.
Synstyla – Roses displaying pink, white and bright red from locations around the globe are included in this category. A few of the popular variations of this species are Rosa arvenis, Rosa fillips, Rosa helenae, and Rosa iridens.
Banksiana – A yellow and white-based climbing rose, it was discovered in China. The roses of this category bloom ahead of every other kind of rose. It is also known as Lady banks yellow, Yellow Banksia, Banksian yellow and Jaune.
There are also hybrid tea roses. There are more varieties of these hybrids than of regular roses. Hybrid tea roses are actually the most common type of rose that you’ll find in florists. This is because they are very fragrant and have beautiful blossoms. Even before they are bloomed, they have that traditional close-bloomed rose look that one thinks of giving someone a rose for an anniversary or Valentine’s day.