Question: Which is a type of shrub, Cissus or Colletia?

Context paragraphs:
Shrub (drink): In terms of mixed drinks, shrub is the name of two different, but related, acidulated beverages.  One type of shrub is a fruit liqueur that was popular in 17th and 18th century England, typically made with rum or brandy mixed with sugar and the juice or rinds of citrus fruit.

Colletia: Colletia is a genus of flowering plants in the family Rhamnaceae, with 15 to 17 species of spiny shrubs. All species of this genus are native to southern South America.  They are non-legume nitrogen fixers.

Lambertia formosa: Lambertia formosa, commonly known as mountain devil, is a shrub of the family Proteaceae, endemic to New South Wales, Australia.  First described in 1798 by English botanist James Edward Smith, it is the type species of the small genus "Lambertia".  It is generally found in heathland or open forest, growing in sandstone-based soils.  It grows as a multistemmed shrub to around 2 m (7 ft) with a woody base known as a lignotuber, from which it regrows after bushfire.  It has stiff narrow leaves, and the pink to red flowerheads, made up of seven individual tubular flowers, generally appear in spring and summer.  It gains its common name from the horned woody follicles, which were used to make small devil-figures.

Keetia gueinzii: Keetia gueinzii is an evergreen scandent shrub in the Rubiaceae family.  The species epitheton is named after Wilhelm Gueinzius, a German naturalist who collected plants in South Africa.  It became the type species of "Keetia" after the original type species, "Keetia transvaalensis", was made a synonym.  This species is found down the southern African east coast in Malawi, Zimbabwe, Mozambique and South Africa.

Cissus cornifolia: Cissus cornifolia is an erect or semi-scandent woody shrub up to 3m in height belonging to the grape family of Vitaceae, and found from sub-Saharan Africa and Tropical Africa south to Botswana, Mozambique and South Africa.  It is one of more than 300 species forming the genus "Cissus".

Northern hardwood forest: The northern hardwood forest is a general type of North American forest ecosystem found over much of southeastern and south central Canada, Ontario and Quebec, extending south into the United States in northern New England, New York, and Pennsylvania, and west along the Great Lakes to Minnesota and western Ontario.  Some ecologists consider it a transitional forest because it contains species common to both the oak-hickory forest community to the south and the Boreal forest community to the north.  The trees and shrub species of the Northern Hardwood Forest are known for their brilliant fall colors, making the regions that contain this forest type popular fall foliage tourist destinations.

Cissus: Cissus is a genus of approximately 350 species of lianas (woody vines) in the grape family (Vitaceae).  They have a cosmopolitan distribution, though the majority are to be found in the tropics.

Cissus subaphylla: Cissus subaphylla is a low shrub in the grape family Vitaceae, endemic to the Yemeni island of Socotra.  The plant grows mainly in dry, low-lying areas on alluvial fans or on limestone slopes, and is rarely found above elevations of 300 m , where it is replaced by "C. hamaderohensis".  It does not have the climbing habit of other "Cissus" species, and its stems are flattened and gray-green in colour, with relatively small leaves and flowers.  The tangled mats of "C. subaphylla" stems act as a protective covering for plants regularly eaten by goats and other browsing animals; the plant is thus important in the rehabilitation of species such as "Dendrosicyos", "Maerua" and "Commiphora".

Laguna de los Padres: Laguna de los Padres is a small lake located about 12 miles west of Mar del Plata, Argentina and roughly one mile east of Sierra de los Padres' hills.  The name of the lake as well as of the hills nearby has its origins in the Jesuit Fathers ("Padres") attempting to evangelize the region in the 17th century.  The lake has a length of 2,065 mt (6,884 feet) and a width of 1,701 mt (5,670 feet).  Its water is shallow and the aquatic flora, like algae, rushes and another species like the myriophyllum aquaticum, also kown in Argentina as "gambarussa," overpopulates the muddy bottom.  Woods of eucalyptus and pines surround the adjacent area, as well as some aboriginal shrub, like the colletia paradoxa, locally known as "curro".  The area also hosts the southernmost population of tala and some specimenes of sambucus.  The place had been open to the public since 1946.  Sport fishing is the main recreational activity, and there is a wharf for row boats in a small island linked to land by a causeway.  Watercraft with internal combustion power are not permitted on the lake.  Laguna de los Padres also hosted rowing events during the 1995 Pan American Games and 2006 South American Games.

Sagebrush scrub: Sagebrush scrub is a vegetation type (biome) of mid to high elevation Western United States deserts characterized by low growing, drought resistant shrubs including sagebrush ("Artemisia tridentata") and its associates.  It is the dominant vegetation type of the Great Basin Desert (Great Basin shrub steppe), occurs along the margins of the Mojave Desert, including in the southern slopes of the Sierra Nevadas and Transverse Ranges of California, and occurs in the Colorado Plateau and Canyonlands region, where it may be referred to as cool desert shrub.

Supporting paragraphs: Cissus Colletia
Answer: Colletia