has part has part has_part seed trichome seed coat epidermis coma PO:0020061 A portion of seed coat epidermis (PO:0006048) that consists of multiple seed trichomes (PO:0004511) at the seed micropyle (PO:0006334). comae (exact, plural) tuft (broad) FNA:7c6c72f7-89f7-44d3-9cfb-8a0959c27927 comas (exact, plural) plant_anatomy PO_GIT:218 種髪 (Japanese, exact) brush (exact) coma (Spanish, exact)