Question: Scaphosepalum (from Greek "boatlike sepals") is a genus of plants belonging to the family Orchidaceae, many species in this genus produce unusual and distinctive flowers; some possessing cushion-like characteristics reminiscent of which large African bovine?

Context paragraphs:
Pterostylis perculta: Pterostylis perculta, commonly known as the ruddy hood is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia.  Both flowering and non-flowering plants have a relatively large rosette of leaves and flowering plants have up to five reddish-brown and white flowers with relatively short tips on the sepals.

Caladenia longicauda subsp. rigidula: Caladenia longicauda" subsp.  "rigidula, commonly known as the rigid white spider orchid or island white spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia.  It has a single hairy leaf and up to three large, mainly white flowers with relatively short lateral sepals and petals.  It is similar to the reclining white spider orchid ("C. cruscula") but that species has smaller, cream-coloured flowers.

Schomburgkia: Schomburgkia is a genus of plants belonging to the family Orchidaceae.  This genus is named for Richard Schomburgk, a German botanist who explored British Guiana during the 19th century.  Species in this genus are either ephiphytic or lithophytic in their growth habit.  According to the Royal Horticultural Society "Schom."  is the official abbreviation for this genus.

African buffalo: The African buffalo or Cape buffalo ("Syncerus caffer") is a large African bovine.  It is not closely related to the slightly larger wild water buffalo of Asia and its ancestry remains unclear.  "Syncerus caffer caffer", the Cape buffalo, is the typical subspecies, and the largest one, found in South and East Africa.  "S. c. nanus" (African forest buffalo) is the smallest subspecies, common in forest areas of Central and West Africa, while "S. c. brachyceros" is in West Africa and "S. c. aequinoctialis" is in the savannas of East Africa.  The adult buffalo's horns are its characteristic feature; they have fused bases, forming a continuous bone shield across the top of the head referred to as a "boss".  They are widely regarded as very dangerous animals, as they gore and kill over 200 people every year.

Pterostylis spathulata: Pterostylis spathulata, commonly known as the spoon-lipped rufous greenhood or Moora rustyhood is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia.  Both flowering and non-flowering plants have a relatively large rosette of leaves.  Flowering plants also have up to ten or more white and green or brown flowers with fine, upturned tips on the lateral sepals and a spoon-shaped, insect-like labellum.

Brachycorythis kalbreyeri: Brachycorythis kalbreyeri is a species of flowering plant in the Orchidaceae family.  It is endemic to Equatorial Africa and was first discovered on Mount Cameroon by Guillermo Kalbreyer.  It was subsequently named after Kalbreyer by Heinrich Gustav Reichenbach.  The species is unique from others in its genus due to its semi-epiphytic growth habit.  Most species in the genus "Brachycorythis" are terrestrial.  "Brachycorythis kalbreyeri", however, can be found growing on trees near streams, on fallen logs, or mossy tree branches.  During the dry season, the species loses its leaves.  When the wet season returns the species sends out new growth and eventually flowers.  The flowers are 5 cm across and the species can produce up to about 15 flowers.  The sepals of the flower are white and the petals have a purplish color over a white background.  The lip shares this coloration except that towards the column the lip changes to a bright shade of yellow.  The flowers produce a spicy scent.

Peristeria (plant): Peristeria is a genus of plants belonging to the family Orchidaceae commonly called dove orchid or Holy Ghost orchid.  In line with the common name, the genus' name is from the Greek word "peristerion" meaning "from dove".  According to the Royal Horticultural Society, Per is the official orchid abbreviation for this genus.  In nature, it is found across much of South America as well as in Panama, Costa Rica and Trinidad.

Pterostylis insectifera: Pterostylis insectifera, commonly known as the insect-lipped rufous greenhood, or leaden rustyhood is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia.  Both flowering and non-flowering plants have a relatively large rosette of leaves.  Flowering plants have a similar rosette and up to eight or more flowers which have long, stiffly-held lateral sepals and a protruding, insect-like labellum.

Scaphosepalum: Scaphosepalum (from Greek "boatlike sepals") is a genus of plants belonging to the family Orchidaceae.  The species in this genus are mostly found in Central and South America, with one species extending into southern Mexico.  In accordance with their genus name, many species in this genus produce unusual and distinctive flowers; some possessing cushion-like characteristics reminiscent of an African buffalo's horns, others possessing characteristics of snake fangs.

Govenia: Govenia is a genus of plants belonging to the family Orchidaceae.  The type species, "Govenia superba", was transferred from "Maxillaria superba" and a genus name was given to commemorate J.R. Gowen, secretary of the Horticultural Society of London and confidential secretary to the Earls of Carnarvon.

Supporting paragraphs: Scaphosepalum African buffalo
Answer: African buffalo