Brabejum | |
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Brabejum stellatifolium in flower | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Proteales |
Family: | Proteaceae |
Subfamily: | Grevilleoideae |
Tribe: | Macadamieae |
Subtribe: | Macadamiinae |
Genus: | Brabejum L. |
Species: | B. stellatifolium |
Binomial name | |
Brabejum stellatifolium L. | |
Brabejum is a genus of a single species of large evergreen tree, Brabejum stellatifolium in the family Proteaceae, commonly called wild almond, bitter almond or ghoeboontjie. It is restricted in the wild to South Africa's Western Cape province, where it grows in thickets along the banks of streams. The plant is of botanical interest as being Africa's only member of the large grevilleoid subfamily. It is a bushy small tree with branches widely at ground level and numerous erect vigorous stems. Leaves grow up to 6 in (15 cm) long, narrow and bluntly toothed, appear at intervals along the branches, mostly in whorls of 6. In summer, the plant bears white flowers densely crowded on spikes arising from rusty buds at the leaf axils. The fruits to 2 in (5 cm) long, magenta to reddish brown, similar to an almond, appear in autumn. The nut is too bitter to eat; however, in earlier times it was boiled, roasted, and ground to make a "coffee" drink.
This tree has special significance in Cape Town's heritage, as it was used to make Van Riebeeck's Hedge - the Cape's first formal boundary. Parts of this original hedge can still be seen growing today at Kirstenbosch. [2]
Despite its common name, this tree is not a member of the almond family, and is in fact a member of the Proteaceae. It acquired the name "wild almond" simply because its fruits vaguely resemble almonds. The part-Khoi local name "ghoeboontjie" also refers to the fruit kernels and their use in traditional coffee. [3]
The origin of the tree's genus name is uncertain, but its species name "stellatifolium" (meaning "star-leaved" or "stellate-leaved") is a reference to the star-shaped whorls in which its leaves grow. This is sufficiently unusual among tree species, that its whorled phyllotaxis is the most conveniently diagnostic characteristic of Brabejum stellatifolium in regions where the tree is common. [4]
Brabejum is a spreading, multi-stemmed, well-shaped evergreen tree. It may grow as tall as 15 meters, but has wide spreading branches and a sprawling habit. The smooth bark is pale greyish-brown and attractively mottled. The green, leathery leaves are toothed and lance-shaped. They appear in whorls of about six, at intervals along the stems, radiating out from the branch like a star. Young leaves are soft, velvety and golden. The tiny, white, sweetly scented, bisexual flowers appear in summer, in dense racemes.
The nut-like fruits look similar to almonds and grow in clusters at the tips of branches. They are densely covered with chocolate-brown velvety hairs. The young fruits are an attractive magenta or lilac-purple colour and mature to the typical brown later in the summer. The fruits are short-lived, germinate quickly and are often dispersed by rivers.
The leaves of Brabejum are frequently disfigured by small knobs. These bubbles are the residences of tiny symbiotic mites. They do not harm the tree, but affected branches can be removed if they are found to be unsightly.
The natural range of these trees is confined to the fynbos biome of the Cape, South Africa. Here they are often a component of the local Afro-montane forests.
They prefer moist areas, and commonly occur near streams in sheltered gorges and on lower mountain slopes. In Cape Town they are still abundant on the eastern slopes of Table Mountain, although at one time large numbers were felled in this area to make way for commercial pine plantations. However, despite its limited range, this species is not currently listed as threatened.
The natural occurrence of these trees in South Africa is of considerable interest to biologists. This is because Brabejum has no close relatives in Africa - within the enormous Protea family its nearest relative is the Macadamia tree of Australia and New Caledonia. Its other more distant relatives likewise exist only in Australasia and South America. In fact, not only is this species alone in its genus Brabejum, it is also the only member of its subfamily, Grevilleoideae, in Africa (the proteas that surround it in South Africa are relatively distant relatives).
It seems that the ancient and spectacular Protea family originated in Gondwanaland, hundreds of millions of years ago. The different species were gradually separated by plate tectonics and their descendants still occur on the pieces of land that are now separated by thousands of miles of ocean. Brabejum is the lone survivor of its branch of the family on the African remnant of Gondwanaland.
This is a relatively fast growing tree and is not suitable for the small garden. It has a tendency to spread out sideways and it can be used to form an impenetrable hedge. If correctly pruned, it can form a well-shaped tree. Wherever side branches are cut, more branches will grow from below the cut, so it is readily shaped into a good screen. Older trees form an enormous jungle of giant tangled boughs and sprawling branches, making the trees popular with children.
Brabejum is best propagated by fresh seed. The nuts can simply be pushed into the ground as they are, and they germinate as soon as they are on firm, damp soil. However, the seeds do not survive long if they cannot germinate or if they dry out. Ensure that the seedlings get sufficient water in their first few years, preferably by planting them in a damp, shady area like a river bank. [5]
Curtisia dentata is a flowering tree from Southern Africa. It is the sole species in genus Curtisia, which was originally classed as a type of "dogwood" (Cornaceae), but is now placed in its own unique family Curtisiaceae.
Kirstenbosch is an important botanical garden nestled at the eastern foot of Table Mountain in Cape Town. The garden is one of 10 National Botanical Gardens covering five of South Africa's six different biomes and administered by the South African National Biodiversity Institute (SANBI). Prior to 1 September 2004, the institute was known as the National Botanical Institute.
Leucadendron argenteum is an endangered plant species in the family Proteaceae, which is endemic to a small area of the Cape Peninsula, South Africa. Most grow in and around the city of Cape Town, but outlying populations exist near Somerset West (Silwerboomkloof), Paarl and Stellenbosch. It is a protected tree in South Africa.
Protea neriifolia, also known as the narrow-leaf sugarbush, oleander-leaved sugarbush, blue sugarbush, or the oleanderleaf protea, is a flowering plant in the genus Protea, which is endemic to South Africa.
Mimetes, the pagoda, is a genus of evergreen shrubs or small trees 0.5–6 m (1.6–19.7 ft) high, with thirteen species assigned to the family Proteaceae. This genus, as with other proteas, is popular with nectarivorous birds such as the Cape sugarbird and several sunbird species. All species of Mimetes are endemic to the Cape Floristic Region of South Africa.
Mimetes hirtus is an upright, evergreen shrub of 1½–2 m (5–6½ ft) high from the family Proteaceae. It has upright, overlapping, (broadly) lance-shaped leaves, without teeth, but with one thickened pointy tip. It has cylindric inflorescences topped by a pine apple-like tuft of pinkish-brownish, smaller and more or less horizontal leaves. The flowerheads are tightly enclosed by yellow, red-tipped bracts, only the 9–14 long red styles and the whitish silky tips of the perianth sticking out. It is primarily pollinated by the Cape sugarbird. It is an endemic species of the southwest of the Western Cape province of South Africa, and grows in wet zones at the base of south facing mountain slopes. Flower heads may be found from May to November, but peaks in July and August. The species has several vernacular names of which marsh pagoda seems to be used most.
Leucospermum cordifolium is an upright, evergreen shrub of up to 1½ m (5 ft) high from the Proteaceae. The flower heads are globe-shape with a flattened top, 10–12 cm (3.9–4.7 in) in diameter, and are carried individually or with two or three together mostly at a right angle to its branch. The perianth is 3–3½ cm long, yellow, orange or crimson in color. From each flower emerges a 4½–6 cm (1.8–2.4 in) long style sticking out horizontally but curving upwards near the obliquely, shell-shaped, thicker pollen presenter. This gives each head the appearance of a pincushion. Its common name is ornamental pincushion in English and bobbejaanklou in Afrikaans. It flowers between the middle of July and the end of November. It naturally occurs near the south coast of the Western Cape province of South Africa. Varieties and hybrids of this species are used as cut flower and garden plant.
Diospyros whyteana is a small African tree of the ebony family. Bearing dark green, strikingly glossy leaves and creamy fragrant flowers, it is increasingly cultivated in Southern African gardens as an attractive and strong ornamental tree. It can attain a height of up to 6 m.
Kiggelaria africana is a large, robust, low-branching African tree, and is currently the only accepted species in the genus Kiggelaria.
Leucospermum conocarpodendron is the largest species of the genus Leucospermum, reaching almost tree-like proportions of 5–6 m (16–20 ft) high with a firm trunk that is covered in a thick layer of cork that protects it from most fires. It has greyish or green narrow or broad inverted egg-shaped leaves with three to ten teeth near the tip and large yellow flowerheads, with firm, bent, yellow styles that stick far beyond the rest of the flower and give the impression of a pincushion. It is commonly known as the tree pincushion in English or goudsboom in Afrikaans. They naturally occur near Cape Town, South Africa.
Maytenus oleoides, commonly known as the mountain maytenus or rock false candlewood, is a dense, medium-sized tree that grows throughout the western half of South Africa. It is known as klipkershout in Afrikaans.
Mimetes fimbriifolius, also called cowl pagoda or the fringed pagoda, is a species of plant in the family Proteaceae. It is a dense, rounded, multi-branched tree that grows up to 4 metres in height. This attractive and striking plant flowers all year round, and produces red and yellow branch-heads and inflorescences. The nectar-rich flowers are pollinated by sunbirds and the seeds are distributed and taken underground by ants before germinating. It is endemic to the Table Mountain range in the city of Cape Town, South Africa.
Leucadendron coniferum, also known at the dune conebush, is an evergreen, dioecious shrub or small tree of up to 4 m (13 ft) high, that has been assigned to the family Proteaceae. It has a whorl of conspicuous yellow leaves subtending the flowerheads. The flowers can be found in August and September. It grows in sandy soils near the coast of the Western Cape province of South Africa.
Leucospermum truncatulum is a slender, upright, evergreen, hardly branching shrub of up to 2 m (6 ft) high, with felty inverted egg-shaped to oval, leaves with entire margins of 1–2½ cm (0.4–1.0 in) long and ½–1 cm (0.2–0.4 in) wide. It has small globe-shaped, at first yellow, later pinkish flower heads of 1½–2 cm (0.6-0.8 in) in diameter, without a stalk, usually crowded with two to eight together near the end of the stems. It is known as oval-leaf pincushion in English, and patrysbos or kleinkopspeldekussing in Afrikaans. It is an endemic species of the south of the Western Cape province of South Africa, and flowers between August and December.
Leucospermum secundifolium is a low, evergreen shrub that grows along the ground, the tip of the branches slightly rising, which has been assigned to the family Proteaceae. It has narrowly elliptic leaves with a distinct leafstalk, and few-flowered and very small heads of 1–1½ cm (0.4–0.6 in) across. It is called stalked pincushion in English. The sweetly scented flower heads may be found around early December. It is an endemic species that only grows in a small area of the Western Cape province of South-Africa.
Mimetes splendidus or splendid pagoda is an evergreen, rather sparsely branching, upright shrub of up to 2½ m (8 ft) high from the family Proteaceae. It has broadly lance-shaped to oval, silvery-hairy leaves with three or four teeth crowded at the tip. It has cylinder-shaped inflorescences that consists of many heads, each containing eleven to thirteen flowers, in the axils of the highest leaves. These leaves form a hood over a lower flowerhead and are flushed orangy pink. It flowers during winter, from early May to September. It is an endemic species that is restricted to the south face of the coastal mountains of the Western Cape province of South Africa.
Van Riebeeck's Hedge is a hedge planted in 1660 by Jan van Riebeeck to mark the border of the Dutch East India Company settlement in what is now Cape Town, South Africa. The hedge consisted of indigenous wild almond trees. Sections of the hedge can still be seen in Kirstenbosch National Botanical Garden and Bishopscourt, and have been declared a National Monument.
Protea pendula, also known as the nodding sugarbush or arid sugarbush, is a flowering plant of the genus Protea, in the family Proteaceae, which is only found growing in the wild in the Cape Region of South Africa. In the Afrikaans language it is known as knikkopsuikerbossie or ondersteboknopprotea.
Protea angustata, also known as the Kleinmond sugarbush, is a flowering shrub that belongs to the genus Protea. This plant is endemic to the south-west Cape Region of South Africa.
Protea nana, also known as the mountain rose or mountain-rose sugarbush, is a flowering shrub which belongs within the genus Protea.