I have a picture of the newly opened flower Pelargonium aridum, but unfortunately the very delicate flower stalk broke in half in the wind so I could not take any more pictures. Hopefully it will flower again soon
P. incarnatum is an unusual and attractive plant that has more of the appearance of a Geranium or Erodum because of its symmetric petals but it is in fact classified as a pelargonium, It is a bit of a mystery as it is the only Erodum type to be found South of the Equator and it is believed to be a hybrid between Erodum incarnatum and Pelargonium patulium.
The flowers are light pink with darker red in the centre and zoned circles of white and dark pink, it is a spreading plant which grows to 20 cm in height. The leaves are 3 lobed and irregular toothed, this plant is native to mountainous areas of the Western Cape usually among rocky sand stones.
P. ochroleucum is another rare succulent type pelargonium, it has a tuber that grows to 4 cm in width and 7 cm in height, the flowers are white to light yellow and each flowering stork contains about 6-10 flowers.
It is native to Southern areas of South Africa and was named by William Henry Harvey in the mid 1800s.
Pelargonium nephrophyllum is a rare and newly found species discovered in areas of Southern Namaqualand, South Africa. It was given the name nephrophyllum by Elizabeth M Marais in 1992 (the department of Botany, University of Stellenbosch). This plant has a tuber which resembles a turnip in shape with a flaky texture, the flowers are pale-dark pink with red markings on the upper petals and the leaves are kidney shaped with rounded edges.
Pelargonium fergusoniae is a rare Southern South African pelargonium, the flower colours vary from White/cream, light pink or with a green tinge and contains about 3-8 flowers on each stalk, This plant contains a tuber which is turnip like and can grow to 3 & half cm, the leaves are deeply incised.
P. curviandrum is another rare pelargonium, it is a geophyte ( remains dormant in Summer) with a woody tuber that is long or circular in form. The leaves are positioned low down and are large & oval in shape with an upright flower stem which contains white or cream flowers with purple markings on the upper petals, this plant is native to areas of the Little Karoo in the Southern Cape mainly in mountains.
P. caledonicum is a rare and critically endangered pelargonium because of the increase of wheat farming since the 1930s in the Overberg area of the Western Cape where this plant grows.
It was given the name Caledonicum because it was first discovered near to the town of Caledon in the Overberg area, the flowers are white to light pink marked with purple and has finely divided leaves.
Many new Pelargonium species have only just been recently discovered, a number of these are either rare or endangered in different regions of South Africa and are not seen in cultivation. Some rarer types can be unusual in appearance and have beautiful flowers or foliage.
P. griseum was discovered in 1861, the unusual but lovely flowers have 4 petals which are pink with tints of purple, the upper petals are folded over at the top which gives it the appearance of a tube, and the flower also has long stamens . It is a low growing shrub that is slightly woody and has grey green leaves.
P. quinquelobatum is not quite so unusual as the P. griseum but the graceful flowers are different in colour than most pelargoniums that you see, which are yellowy green-blue grey in colour and the upper petals have pale pink markings, The leaves also are blue green in colour and is native to areas of Tanzania,Kenya and Ethiopia.
P. tragacanthoides is similar to the P. griseum but the attractive flowers are white in colour with deep purple markings on the upper petals which fold back to give the appearance of a cube, the feather like leaves are highly scented and are used for medicinal purposes in areas of South Africa mostly around the Eastern Cape,
P. auritum has small deep purple and white flowers that have narrow petals and stamens that look like a star in the center, it is native to South Western Cape Province.