Technical Abstract: 'Pennell' is a large-seeded yellow-cotyledon lentil (Lens culinaris Medik.) developed by the USDA-ARS in cooperation with the Washington Agricultural Research Center, Pullman, WA, the Idaho Agricultural Experiment Station, Moscow, ID, the North Dakota Agricultural Experiment Station, Fargo, ND and released in 2003. Pennell has large seed size, absence of seed coat mottling, upright plant habit and high yield. Pennell, selection LC460197, originated as an F6 selection from the cross of LC660194/'Brewer' made in 1990 to combine large seed size with upright plant habit. Yield of Pennell was comparable to Brewer when averaged over sites; however, Pennell averaged 9.1 % higher yield when compared to 'Mason' (PI 619099), the comparable cultivar for seed size. Compared to Brewer, Pennell was 1cm taller, flowered an average of two days later and matured one day later. Plants of Pennell are strongly branched at the base, which imparts a bushy structure that enables the canopy to remain somewhat erect during the growing season. The large seed size and lack of seedcoat mottling of Pennell are features that should appeal to markets in the U.S. and internationally.