Question: What do Protea and Pyrola have in common?

Context paragraphs:
Protea acaulos: Protea acaulos (common ground sugarbush) is a flowering plant found in western Cape Province, South Africa.  It grows as a dwarf or creeping shrub with a maximum height of around 30 cm.  It is a member of the "acid sand fynbos complex" of plants, adapted to the regular occurrence of fires.

Protea: Protea is both the botanical name and the English common name of a genus of South African flowering plants, sometimes also called sugarbushes (Afrikaans: suikerbos).  In local tradition, the Protea flower represents change and hope.

Sphalmium: Sphalmium is a monotypic genus of flowering plants in the protea family.  The only species, Sphalmium racemosum, is a large forest tree.  Common names include Satin Silky Oak, Mystery Oak, Mt Lewis Oak, Poorman's Fishtail Oak, Satin Silky Oak and Buff Silky Oak.

Protea aristata: Protea aristata (aristata = sharp-tipped leaves), was first collected by the botanists T. P. Stokoe and R. Primos in 1928 near the town of Ladismith in the Cape Province, South Africa.  In spite of being locally common in the Seweweekspoort the plant species could not be found again until 1953, prior to which it was considered to be extinct.  "Protea aristata" has become one of South Africa's most famous proteas in spite of its relatively late 'discovery'.

Pyrola minor: Pyrola minor, known by the common names snowline wintergreen, lesser wintergreen, and common wintergreen, is a plant species of the genus "Pyrola".  It has a Circumboreal distribution and can be found throughout the northern latitudes of Eurasia and North America.

Pyrola: Pyrola (syn.  "Pirola" ) is a genus of evergreen herbaceous plants in the family Ericaceae.  Under the old Cronquist system it was placed in its own family Pyrolaceae, but genetic research showed it belonged in the family Ericaceae.  The species are commonly known as wintergreen, a name shared with several other related and unrelated plants (see wintergreen for details).  They are native to northern temperate and Arctic regions.

Orthilia: Orthilia secunda is a flowering plant of the genus Orthilia in the family Ericaceae.  It is the only member of the genus.  Its common names are sidebells wintergreen, one-sided-wintergreen and serrated-wintergreen, and it was previously part of genus "Pyrola", the wintergreens.

Supporting paragraphs: Protea Pyrola
Answer: plants