Question: Osteospermum and Calluna are both types of what kind of plants?

Context articles: Speaker types
Monoculus
Ericaceae
Erica
Fen
Gifts in kind
Calluna
Ericaceous bed
Osteospermum
Dimorphotheca

Within the linguistic study of endangered languages, sociolinguists distinguish between different speaker types based on the type of competence they have acquired of the endangered language.
 Often in situations where a community is gradually shifting away from an endangered language to a majority language, not all speakers acquire full linguistic competence, but have varying degrees and types of competence depending on the kind of exposure to the minority language they experienced in their upbringing.
 Originally the relevance of speaker types in situations of language shift was noted by Nancy Dorian who coined the term semi-speaker to refer to those speakers of Sutherland Gaelic who were predominantly English-speaking and whose Gaelic competence was limited and showed considerable influence from English.
 Later studies added additional speaker types such as rememberers (who remember some words and phrases but have little or no grammatical competence and do not actively speak the language), passive speakers (who have nearly full comprehension competence but do not actively speak the language).
 In the context of language revitalization, neo-speakers who have learned the endangered language as a second language are sometimes distinguished.
Monoculus is a genus of succulent plants in the pot marigold tribe within the sunflower family, split from the genus "Osteospermum" by Bertil Nordenstam in 2006.
The Ericaceae are a family of flowering plants, commonly known as the heath or heather family, found most commonly in acid and infertile growing conditions.
 The family is large, with c. 4250 known species spread across 124 genera, making it the 14th most species-rich family of flowering plants.
 The many well-known and economically important members of the Ericaceae include the cranberry, blueberry, huckleberry, rhododendron (including azaleas), and various common heaths and heathers ("Erica", "Cassiope", "Daboecia", and "Calluna" for example).
Erica is a genus of roughly 860 species of flowering plants in the family Ericaceae.
 The English common names "heath" and "heather" are shared by some closely related genera of similar appearance.
 The genus "Calluna" was formerly included in "Erica" – it differs in having even smaller scale-leaves (less than 2–3 mm long), and the flower corolla consisting of separate petals.
 "Erica" is sometimes referred to as "winter (or spring) heather" to distinguish it from "Calluna" "summer (or autumn) heather".
A fen is one of the main types of wetland, the others being grassy marshes, forested swamps, and peaty bogs. Along with bogs, fens are a kind of mire.
 Fens are minerotrophic peatlands, usually fed by mineral-rich surface water or groundwater.
 They are characterised by their distinct water chemistry, which is pH neutral or alkaline, with relatively high dissolved mineral levels but few other plant nutrients.
 They are usually dominated by grasses and sedges, and typically have brown mosses in general including "Scorpidium" or "Drepanocladus".
 Fens frequently have a high diversity of other plant species including carnivorous plants such as "Pinguicula".
 They may also occur along large lakes and rivers where seasonal changes in water level maintain wet soils with few woody plants.
 The distribution of individual species of fen plants is often closely connected to water regimes and nutrient concentrations.
Gifts in kind, also referred to as "in-kind donations", is a kind of charitable giving in which, instead of giving money to buy needed goods and services, the goods and services themselves are given.
 Gifts in kind are distinguished from gifts of cash or stock.
 Some types of gifts in kind are appropriate, others are not.
 Examples of in-kind gifts include goods like food, clothing, medicines, furniture, office equipment, and building materials.
 Performance of services, such as building an orphanage, providing office space or offering administrative support, may also be counted as in-kind gifts.
Calluna vulgaris (known as common heather, ling, or simply heather) is the sole species in the genus Calluna in the flowering plant family Ericaceae.
 It is a low-growing perennial shrub growing to 20 to tall, or rarely to 1 m and taller, and is found widely in Europe and Asia Minor on acidic soils in open sunny situations and in moderate shade.
 It is the dominant plant in most heathland and moorland in Europe, and in some bog vegetation and acidic pine and oak woodland.
 It is tolerant of grazing and regenerates following occasional burning, and is often managed in nature reserves and grouse moors by sheep or cattle grazing, and also by light burning.
An Ericaceous bed is a bed (or garden) with acidic and often nutrient-poor soil such as Ericaceous compost and different types of peat.
 The pH of the soil is typically between 4.5 and 6.
 The purpose is typically to grow a number of garden plants which require (or thrives best in) acidic soil.
 Such plants commonly include heathers (Erica, Calluna and more) and Rhododendrons. Another group of plants common in ericaceous beds are those belonging to the boreal coniferous forest, e.g. Vacciniums.
 A number of orchids also grow well in nutrient-poor soil.
Osteospermum , the daisybushes is a genus of flowering plants belonging to the Calenduleae, one of the smaller tribes of the sunflower/daisy family Asteraceae.
Dimorphotheca is a genus of plants in the sunflower family, native to Africa and Australia.
 is one of eight genera of the Calenduleae, with a centre of diversity in Southern Africa.
 Some species can hybridize with "Osteospermum", and crosses are sold as cultivated ornamentals.
 The name ""Dimorphotheca"" comes from the Greek "Dis" "Morphe" and "Theka", meaning "two shaped fruit", referring to the dimorphic cypselae, a trait inherent to members of the Calenduleae.
 Plants of this genus usually have bisexual flowers.