Why is buckwheat not a true cereal?
Buckwheat, Fagopyrum esculentum, is a broadleaf plant rather than a grass. It is called a pseudocereal because its grain-like fruits are used similarly to cereals. The small fruits are characteristically triangular.
Short growing cycle and flowering
Many cultivars develop relatively quickly but are frost-sensitive. Moderate conditions and adequate moisture support flowering, while excessive heat can reduce set. Flowers provide resources for pollinating insects. Extended flowering means seeds may mature unevenly. Excess nitrogen can favor foliage and lodging rather than grain.
Harvest and product distinctions
Harvest balances the proportion of mature grain against shattering risk. Cover cropping or pollinator forage requires different management from grain production. Tartary buckwheat is another species with different flavor and agronomy. Being unrelated to wheat does not guarantee processed products avoid cereal contamination. Edible grain should not be used to infer that every plant tissue is suitable for the same consumption.