Lopezia is a genus of plants of the family Onagraceae, largely restricted to Mexico and Central America.
Description Herbs or shrubs, mostly freely branched. Leaves petioled, alternate, or the lower opposite, simple. Flowers -solitary, small, pedicelled, in upper axils of sometimes much reduced leaves. Floral tube inconspicuous. Sepals 4, mostly red, narrow. Petals 4, dissimilar, white to rose, the 2 upper unguiculate, with none, one, or two glands at apex of claw; the 2 lower clawed and curved upward, glandless. Stamens 2, adnate to the style and connate with each other at the base, the posterior fertile, the anterior sterile, petaloid. Ovary 4-loculed; style short, filiform, with slightly enlarged and barely lobed stigma; ovules multiseriate, many. Capsule globose to clavate, coriaceous, 4-loculed and -valved. Seeds many, obovoid, granulate.
Distribution It is found in Costa Rica, El Salvador, Guatemala, Honduras, Mexico and Panamá.
Species According to Kew, there are 28 species are recognized in the genus Lopezia in 2022: Lopezia ciliatula Plitmann, P.H.Raven & Breedlove Lopezia clavata Brandegee Lopezia concinna P.H. Raven Lopezia conjugans Brandegee Lopezia cornuta S. Watson Lopezia coronata Andrews Lopezia galeottii Planch. Lopezia gentryi (Munz) Plitmann, P.H. Raven & Breedlove Lopezia gracilis S. Watson Lopezia grandiflora Zucc. Lopezia hirsuta Jacq. Lopezia integrifolia DC. Lopezia laciniata (Rose) M.E. Jones Lopezia langmaniae Miranda. The species name langmaniae was given in honor of Ida Kaplan Langman. Lopezia longiflora Decne. Lopezia lopezioides (Hook. & Arn.) Plitmann, P.H. Raven & Breedlove Lopezia miniata Lag. ex DC. Lopezia miniata subsp. paniculata (Seem.) Plitmann, P.H. Raven & Breedlove Lopezia oaxacana Rose Lopezia ovata (Plitmann, P.H. Raven & Breedlove) Plitmann Lopezia pringlei Rose Lopezia racemosa Cav. Lopezia riesenbachia Plitmann, P.H. Raven & Breedlove Lopezia semeiandra Plitmann, P.H. Raven & Breedlove Lopezia sinaloensis Munz Lopezia smithii Rose Lopezia suffrutescens Munz Lopezia trichota Schltdl. Lopezia violacea Rose
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