Two-seed vetch

Vicia disperma, the two-seed or two-seeded vetch, is a slender annual herb of the legume family (Fabaceae) native to the Mediterranean Basin and the Atlantic coast of south-western Europe and north-western Africa, including Portugal, Spain, France, Italy, Morocco, and Algeria. Its weakly four-angled stems climb or scramble to 20–60 cm by means of branched terminal tendrils. The pinnately compound leaves bear several pairs of small, narrowly oblong leaflets with rounded or notched tips. Few-flowered (typically 1–3) axillary racemes carry small, pale lilac to pinkish-white pea-like flowers about 5–8 mm long. The fruit is a short, flattened, glabrous pod containing — as the specific epithet implies — characteristically two seeds. The species is a casual weed of cultivated and disturbed ground and has been introduced as a naturalised plant to parts of California and Australia.