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=== Terms to describe shape === * '''Bean-shaped''' ({{visible anchor|Reniform|text=reniform}})<!-- "Reniform seed" redirects to this anchor --> β resembling a kidney, with lobed ends on either side of the hilum * '''Square''' or '''Oblong''' β angular, with all sides being either equal, or longer-than-wide * '''Triangular''' β three-sided, broadest below the middle * '''Elliptic''' or '''Ovate''' or '''Obovate''' β rounded at both ends, or egg shaped (ovate or obovate, broader at one end), being rounded but either symmetrical about the middle, or broader below the middle, or broader above the middle<ref>{{cite web|url=https://www.anbg.gov.au/cpbr/cd-keys/peakey/key/The%20Pea%20Key/Media/Html/165_seed_shape.html|title=Seed shape|work=anbg.gov.au|url-status=live|archive-url=https://web.archive.org/web/20140226052530/https://www.anbg.gov.au/cpbr/cd-keys/peakey/key/The%20Pea%20Key/Media/Html/165_seed_shape.html|archive-date=2014-02-26}}</ref> * '''Discoid''' ''β'' resembling a disc or plate, having both thickness and parallel faces and with a rounded margin) * '''Ellipsoid''' * '''Globose''' β [[Sphere|spherical]] * '''Subglobose''' (Inflated, but less than spherical) * '''Lenticular''' * '''Ovoid''' * '''Sectoroid''' * * Other common descriptors for seeds focus on color, texture, and form. '''Striate''' seeds are striped with parallel, longitudinal lines or ridges. The most common colours are brown and black, with other colours appearing less frequently. The surface texture varies from highly polished to considerably roughened. The surface may also have a variety of appendages (see Seed coat), and be described by terms such as [[papillate]] or [[digitiform]] (finger-like).{{sfn|Barthlott|1984}} A seed coat with the consistency of [[Cork (material)|cork]] is referred to as '''suberose'''. Other terms include '''crustaceous''' (hard, thin or brittle).
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