Campanula is one of several genera in the family Campanulaceae with the common name bellflower.
 It takes both its common and its scientific name from its bell-shaped flowers—"campanula" is Latin for "little bell".
Campanula medium, common name Canterbury bells, also known as the bell flower, is an annual or biennial flowering plant of the genus "Campanula", belonging to the family Campanulaceae.
 In floriography, it represents gratitude, or faith and constancy.
Campanula garganica (Adriatic bellflower), syn.
 "C. elatines" var.
 "garganica", is a species of flowering plant in the genus "Campanula" of the family Campanulaceae, native to Southern Europe.
 It is a small, spreading herbaceous perennial growing to 5 cm .
 Basal rosettes of leaves bear a profusion of star-shaped blue flowers in summer.
Campanula glomerata, known by the common names clustered bellflower or Dane's blood, is a species of flowering plant in the genus "Campanula", belonging to the family Campanulaceae.
 It is the county flower of Rutland, England.
Campanula cochleariifolia (also Campanula cochlearifolia), common name earleaf bellflower or fairy's-thimble, is a species of flowering plant in the genus "Campanula" of the family Campanulaceae, native to the Pyrenees, Alps, and Carpathian Mountains of Central Europe.
 It is a rhizomatous herbaceous perennial growing to 10 cm .
 Clumps of bright green leaves produce nodding pale blue bell flowers on wiry stalks.
Campanula lactiflora, the milky bellflower, is a species of flowering plant in the genus "Campanula" of the family Campanulaceae, native to Turkey and the Caucasus.
 It is a medium-sized herbaceous perennial growing to 1.2 m , with narrow, toothed leaves 5 - long.
 Large conical clusters of open, star-shaped flowers are produced on branching stems in summer.
 In favourable conditions it will self-seed with variable results.
 The flowers are usually white or pale blue, but numerous cultivars have been developed for garden use, in a range of colours.
Sparaxis (harlequin flower) is a genus in the family Iridaceae with about 13 species endemic to Cape Province, South Africa.
Campanula raineri (Rainer's bellflower, Rainer's harebell) is a species of flowering plant in the genus "Campanula" of the family Campanulaceae, native to the Swiss and Italian Alps.
 It is a low-growing herbaceous perennial growing 5 - tall by up to 20 cm wide, with pale lilac bell-shaped flowers in summer.
 It is suitable for cultivation in the alpinum or rock garden.
 It spreads by underground runners.
Campanula rapunculoides, known by the common names creeping bellflower, or rampion bellflower, is a perennial herbaceous plant of the genus "Campanula", belonging to the family Campanulaceae.
Campanula spicata, common name the spiked bellflower, is a herbaceous biennial or perennial plant of the genus "Campanula" belonging to the family Campanulaceae.

Question: Do the Sparaxis and Campanula come from the same family genus?
Answer: no