Composition
It is a rigid, erect plant 0.5–1.8 m tall, with stout stems with a square cross-section. The leaves are 10–25 cm long, pinnate with 2–7 leaflets, and of a distinct glaucous grey-green color; unlike most other vetches, the leaves do not have tendrils for climbing over other vegetation. The flowers are 1–2.5 cm long, with five petals, the standard petal white, the wing petals white with a black spot (true black, not deep purple or blue as is the case in many "black" colorings,) and the keel petals are white. Crimson-flowered broad beans also exist, which were recently saved from extinction. The fruit is a broad, leathery pod, green maturing to blackish-brown, with a densely downy surface; in the wild species, the pods are 5–10 cm long and 1 cm diameter, but many modern cultivars developed for food use have pods 15–25 cm long and 2–3 cm thick. Each pod contains 3–8 seeds; round to oval and 5–10 mm diameter in the wild plant, usually flattened and up to 20–25 mm long, 15 mm broad and 5–10 mm thick in food cultivars. Vicia faba has a diploid (2n) chromosome number of 12 (six homologous pairs). Five pairs are acrocentric chromosomes and one pair is metacentric.
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—Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)
“The naive notion that a mother naturally acquires the complex skills of childrearing simply because she has given birth now seems as absurd to me as enrolling in a nine-month class in composition and imagining that at the end of the course you are now prepared to begin writing War and Peace.”
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“The composition of a tragedy requires testicles.”
—Voltaire [François Marie Arouet] (1694–1778)