|Cultivar group||Botrytis cultivar group|
Broccoli and cauliflower are different cultivars of the same species, and as such are fully cross compatible by hand pollination or natural pollinators. There are two forms of Brassica oleracea that may be referred to as broccoflower, both of which are considered cultivars of cauliflower (Brassica oleracea var. botrytis) because they have inflorescent meristems rather than flower buds when harvested. One is shaped like regular cauliflower, the other has pointed, conical, spiraling clusters of florets. They share a curd color that is a similar hue to that of broccoli.
The first form of broccoflower has the physical attributes of a white cauliflower, but the curd color is lime-green. There are several cultivars of green cauliflower on the market, with the first release being 'Green Ball' with parentage of both broccoli and cauliflower. The California firm Tanimura & Antle trademarked the word "Broccoflower" for the green cauliflower they market.
The second form is Romanesco broccoli, which is characterised by the striking and unusual fractal patterns of its flower head. It has a yellow or vibrant green curd color.
|Wikimedia Commons has media related to Romanesco.|
- Watts, LE (1968). "Natural cross-pollination and the identification of hybrids between botanical varieties of Brassica oleracea". Euphytica. 17: 74–80. doi:10.1007/BF00038968 (inactive 2020-04-29).
- Malatesta, M.; Davey, J.C. (1994). "Cultivar identification within broccoli, Brassica oleracea L. var. italica Plenck and cauliflower, Brassica oleracea var. botrytis L.". Acta Horticulturae 407: ISHS Brassica Symposium - IX Crucifer Genetics Workshop.
- Honma, S.; Heech, O. (1971), Green Ball: A New Type of Cauliflower, Michigan State University, Agricultural Experiment Station
- "Broccoflower brand green cauliflower from Tanimura & Antle". Archived from the original on 2014-03-14. Retrieved 2011-09-29.