| Duvalia caespitosa | |
|---|---|
 | |
| The distinctive flower of Duvalia caespitosa | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Gentianales |
| Family: | Apocynaceae |
| Genus: | Duvalia |
| Species: | D. caespitosa |
| Binomial name | |
| Duvalia caespitosa (Masson) Haw. | |
Duvalia caespitosa is a small succulent plant species, in the family Apocynaceae, widespread in South Africa.
This species is recognised by its flower, which is held on a short stalk from the lower part of the stem. Like all Duvalia species, the D.caespitosa flower has five radiating corolla lobes (petals) that each have their sides folded down longitudinally.
However, the lobes of D. caespitosa flowers are tightly folded, and therefore appear thin and spike-like. They are matte or sometimes slightly glossy.
In D. caespitosa, the raised annulus in the centre of the flower is also very prominent, and is hairless or only very faintly pubescent. The annulus is usually a dark red-brown, but is yellow and spotted around the edge of the corona disc. The central corona disc is usually a dull red-brown, but can sometimes be pale. It is smaller than the annulus, revealing the top of latter around its circumference. [1]
Duvalia vestita is sometimes considered to be a subspecies of D. caespitosa. It has lobes that are slightly more spread out. The Corolla is noticeably hairy and very dark red (almost black).
The distribution of vestita is in the far south of the D. caespitosa range - mainly in the western Overberg region, south of the Langeberg mountains.
Duvalia vestita is rarely recorded from the Robertson Karoo and Breede River Valley. Here, it co-occurs with typical D.caespitosa and with Duvalia elegans , and tends to merge with the typical D. caespitosa.
It also extends south into the western Overberg (Greyton, Bredasdorp, Wiesdrift, Struisbaai, Malgas), where it co-occurs with Duvalia elegans . (The typical hairless-flowered D. caespitosa does not occur in the Overberg) [2]
Stapeliinae is a subtribe of flowering plants within the tribe Ceropegieae of the subfamily Asclepiadoideae of the family Apocynaceae. The subtribe comprises about 35 genera, including both the stem-succulent "stapeliads" and the horticulturally popular genera Brachystelma and Ceropegia. The largest number of genera are native to Africa, but a more limited number of genera are widespread in Arabia and Asia. Historically, a similarly circumscribed taxon was treated as a separate tribe, Stapelieae.
Stapelia is a genus of low-growing, spineless, stem succulent plants, predominantly from South Africa with a few from other parts of Africa. Several Asian and Latin American species were formerly included but they have all now been transferred to other genera. The flowers of certain species, most notably Stapelia gigantea, can reach 41 cm (16 inches) in diameter when fully open. Most Stapelia flowers are visibly hairy and generate the odor of rotten flesh when they bloom.
Duvalia is a succulent plant genus in the subfamily Asclepiadoideae, in the family Apocynaceae (dogbane).
The genus Quaqua falls within the tribe of plants known collectively as stapeliads. All stapeliads, including Quaqua, are Old World stem succulents.
Corymbium is a genus of flowering plants in the daisy family comprising nine species. It is the only genus in the subfamily Corymbioideae and the tribe Corymbieae. The species have leaves with parallel veins, strongly reminiscent of monocots, in a rosette and compounded inflorescences may be compact or loosely composed racemes, panicles or corymbs. Remarkable for species in the daisy family, each flower head contains just one, bisexual, mauve, pink or white disc floret within a sheath consisting of just two large involucral bracts. The species are all endemic to the Cape Floristic Region of South Africa, where they are known as plampers.
The plant genus Stilbe was described in 1767, originally as being in the Verbenaceae, but the genus now is placed in the family Stilbaceae. The entire genus is endemic to the Cape Province region of South Africa.
Larryleachia cactiformis is a stapeliad succulent, native to the Richtersveld and Namaqualand in South Africa, where it grows in rocky areas. Larryleachia cactiformis proves as difficult a member of the family Apocynaceae in cultivation as others in its genus.
Stapelianthus is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1933. The entire genus is endemic to Madagascar and is concentrated in the far south of the island.
Piaranthus is a succulent plant genus in the subfamily Asclepiadoideae, in the family Apocynaceae.
Stapelia hirsuta, common name starfish flower or carrion plant, is a species of flowering plant belonging to the family Apocynaceae.
Cycnium tubulosum, also known as the vlei ink-flower and the tissue paper flower, is a slender hemiparasitic perennial plant of the broomrape family. Its range includes much of southern and eastern Africa, from South Africa to Ethiopia, including Madagascar. It has creeping, straggling or upright stems, with few narrow, entire leaves and erect, white or pinkish, slightly zygomorph flowers on a long tube, with five lobes, reminiscent of a Phlox-flower. It may not always be fully dependent on the supply of minerals by other plants, but usually makes connections with the roots of grasses. It can be found in moist, short grasslands, reaching altitudes of about 1,550 m (5,090 ft). Its conservation status in South-Africa is "least concern".
Mairia coriacea is a perennial plant assigned to the family Asteraceae. It has broad, tough and leathery, evergreen leaves. These have a narrowed foot and an entire margin or a few shallow, irregular teeth. They grow in a rosette directly from the rootstock. The plant produces flower heads with one whorl of white to mauve ray florets around many yellow disc florets, with one or few on top of a dark reddish, woolly stalk. Flower heads appear after the overhead vegetation burnt down, often destroying the leaves in the process. It can be found in the southern mountains of South Africa's Western Cape province. It is called leather leaves in English.
Hexalobus monopetalus is a species of plant in the family Annonaceae with the common name baboon's breakfast. It is native to Angola, Benin, Botswana, Burkina Faso, Cameroon, Central African Republic, Chad, Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Liberia, Malawi, Mali, Mozambique, Namibia, Niger, Nigeria, Senegal, South Africa, Sudan, Tanzania, Togo, Uganda, Zambia, Zaire and Zimbabwe. Achille Richard, the French botanist who first formally described the species, using the basionym Uvaria monopetala, named it after its petals which are fused at their base.
Duvalia elegans is a small succulent plant species, in the family Apocynaceae. It is the type species of the genus Duvalia, and it is endemic to the Western Cape Province, South Africa.
Duvalia vestita is a small succulent plant species, in the family Apocynaceae, indigenous to the southernmost part of the Western Cape Province, South Africa.
Drosanthemum quadratum is a succulent plant in the ice plant family, Aizoaceae, indigenous to the Overberg region of the Western Cape Province, South Africa.
Gladiolus patersoniae is a herbaceous perennial plant belonging to the genus Gladiolus of the family Iridaceae, indigenous to the southern Cape regions of South Africa.
Lobostemon capitatus is a species belonging to the forget-me-not family. It is endemic to the Western Cape of South Africa, where it is found between Porterville and Bredasdorp.
Lobostemon curvifolius, the largeflower healthbush, is a species of the forget-me-not family from South Africa.
Selago thomii is a species of plant in the family Scrophulariaceae. It is endemic to the Western Cape, South Africa.
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