PO:0005004 shoot axis node A cardinal organ part (PO:0025001) of a shoot axis (PO:0025029) where a bud (PO:0000055) may form and develop into a branch (PO:0025073), leaf (PO:0025034), flower (PO:0004541), inflorescence (PO:0009049) or nodal root (PO:0003005). PO:0025004 plant axis An axial plant organ (PO:0009008). PO:0009011 plant structure An anatomical structure that is or was part of a plant, or was derived from a part of a plant. PO:0025131 plant anatomical entity An anatomical entity that is or was part of a plant. PO:0025435 shoot axis cork cambium A cork cambium (PO:0005599) that is part of a shoot axis (PO:0025029). PO:0009002 plant cell A cell which is a plant structure (PO:0009011). PO:0025338 collective plant organ structure development stage A plant structure development stage (PO:0009012) that has as primary participant a collective plant structure (PO:0025497). PO:0009007 portion of plant tissue A plant structure (PO:0009011) that consists predominantly of similarly specialized plant cells (PO:0009002) of one or more types. PO:0025496 multi-tissue plant structure A plant structure (PO:0009011) that has as parts two or more portions of plant tissue (PO:0009007) of at least two different types and which through specific morphogenetic processes forms a single structural unit demarcated by primarily bona-fide boundaries from other structural units of different types. obsolete_plant_structure_development_stage obsolete_plant_structure_development_stage PO:0025437 shoot axis vascular cambium A vascular cambium (PO:0005598) that is part of a shoot axis (PO:0025029). PO:0004010 meristematic cell A native plant cell (PO:0025606) synthesizing protoplasm and producing new cells by division and with only a primary cell wall. PO:0025497 collective plant structure A plant structure (PO:0009011) that is a proper part of a whole plant (PO:0000003) and includes two or more adjacent plant organs (PO:0009008) or adjacent cardinal organ parts (PO:0025001), along with any associated portions of plant tissue (PO:0009007). obsolete_plant_anatomy obsolete_plant_anatomy PO:0025337 life of whole plant stage A maximal whole plant development stage. PO:0025242 infructescence axis A shoot axis (PO:0025029) that is part of an infructescence (PO:0006342). PO:0005048 shoot axis periderm A portion of periderm that is part of a shoot axis. PO:0009006 shoot system A collective plant organ structure (PO:0025007) that produces shoot-borne portions of meristem tissue (PO:0009013) and the plant structures (PO:0009011) that arise from them. PO:0030018 gametophore A shoot system (PO:0009006) that consists of the shoot axes (PO:0025029) and non-vascular leaves (PO:0025075) of a plant in the gametophyte development stage (PO:0028003) . PO:0025440 shoot axis cambial zone A cambial zone that is part of a shoot axis (PO:0025029). PO:0009013 portion of meristem tissue A portion of plant tissue (PO:0009007) in which plant cells (PO:0009002) have retained their embryonic characteristics, or have reverted to them secondarily, and that divide to produce new cells that can undergo differentiation to form mature tissues, i.e. they have a capacity for morphogenesis and growth. PO:0025007 collective plant organ structure A collective plant structure (PO:0025497) that is a proper part of a whole plant (PO:0000003), and is composed of two or more adjacent plant organs (PO:0009008) and the associated portions of plant tissue (PO:0009007). PO:0000112 shoot axis epidermis A portion of shoot system epidermis (PO:0006035) that is part of a shoot axis (PO:0025029). PO:0009053 peduncle A shoot axis that extends from the last foliage leaf on a stem or branch until the next distal node. PO:0005041 shoot axis pith A portion of pith (PO:0006109) that is part of a shoot axis (PO:0025029). PO:0025365 stem apex tendril A shoot axis that arises from the apical part of a stem and is slender and coiling. PO:0025029 shoot axis A plant axis (PO:0025004) that is part of a shoot system (PO:0009006). PO:0020145 lateral meristem A portion of meristem (PO:0009013) tissue located parallel to the sides of a shoot axis (PO:0025029) or root (PO:0009005) that participates in lateral growth. PO:0000031 lenticel A portion of ground tissue composed of a loosely-packed mass of cork cells occurring especially in the young stem, bark or even leaf of a plant, visible on the surface as a raised, often powdery-appearing spot. PO:0009047 stem A shoot axis (PO:0025029) that is the primary axis of a plant. PO:0025534 adventitious shoot axis A shoot axis (PO:00025029) that develops in an unusual place. PO:0030026 gametophore bud A vegetative bud that develops into a gametophore. PO:0006344 shoot lateral meristem A lateral meristem (PO:0020145) that is part of a shoot axis (PO:0025029). PO:0025528 bud development stage A shoot system development stage (PO:0025527) that has as primary participant a bud (PO:0009006). PO:0025073 branch A shoot axis (PO:00025029) that develops from an axillary bud meristem (PO:0000232) or from equal divisions of a meristematic apical cell (PO:0030007). PO:0025354 cladode A shoot axis that is flattened and expanded. PO:0004542 rhizome A swollen shoot axis (PO:0025029) that grows horizontally at or below the substrate surface and produces shoots above and roots or rhizoids below. PO:0030086 protonema sub-apical initial cell An initial cell that is produced by longitudinal division of a sub-apical cell of a protonema. PO:0025198 shoot axis stele A stele that is part of a shoot axis. PO:0025606 native plant cell A plant cell (PO:0009002) that is either part of a multicellular whole plant (PO:0000003) 'in vivo' or a unicellular organism 'in natura' (i.e. part of a natural environment). PO:0030020 gametophore axis A shoot axis (PO:0025029) that is part of a gametophore (PO:0030018). all all This term is the most general term possible PO:0000058 vegetative bud A bud (PO:0000055) that develops into a vegetative shoot system (PO:0025607). PO:0007033 whole plant development stage A plant structure development stage (PO:0009012) that has as primary participant a whole plant (PO:0000003). PO:0000003 whole plant A plant structure (PO:0005679) which is a whole organism. PO:0025171 shoot axis prickle A prickle that is part of a shoot axis. PO:0005005 shoot axis internode A cardinal organ part (PO:0025001) of a shoot axis (PO:0025029) that is between two shoot axis nodes (PO:0005004). PO:0000223 shoot axis cortex A portion of cortex (PO:0005708) that is part of a shoot axis (PO:0025029). PO:0030083 gametophore bud initial cell A protonema sub-apical initial hat gives rise to a gametophore bud. PO:0000037 shoot apex A shoot axis (PO:0025029) that is the most distal part of a shoot system (PO:0009006) and has as parts a shoot apical meristem (PO:0020148) and the youngest primordia (PO:0025127). PO:0004011 initial cell A meristematic cell (PO:0004010) that by division gives rise to two cells, one of which remains meristematic, while the other is added to the plant body. PO:0025059 portion of ground tissue Any portion of plant tissue (PO:0009007) other than epidermis (PO:0005679) or vascular tissue (PO:0009015). PO:0006202 interfascicular region A portion of ground tissue located between vascular bundles in a shoot axis. PO:0006330 gynophore A shoot axis that is an elongation of the floral axis that supports the carpels. PO:0009012 plant structure development stage A stage in the life of a plant structure (PO:0009011) during which the plant structure undergoes developmental processes. PO:0020122 inflorescence axis A shoot axis (PO:0025029) that is part of an inflorescence (PO:0009049). PO:0025594 ground meristem A portion of meristem tissue (PO:0009013) that gives rise to a portion of ground tissue (PO:0025059). PO:0000055 bud An undeveloped shoot system (PO:0009006). PO:0028003 gametophyte development stage A whole plant development stage (PO:0007033) that has as primary participant a whole plant (PO:0000003) during the interval between meiosis or apospory and the time that the whole plant ceases to exist. PO:0009008 plant organ A multi-tissue plant structure (PO:0025496) that is a functional unit, is a proper part of a whole plant (PO:0000003), and includes portions of plant tissue (PO:0009007) of at least two different types that derive from a common developmental path. PO:0025527 shoot system development stage A collective plant organ structure development stage (PO:0025338) that begins with the onset of the plant organ development stage (PO:0025339) and ends with either gametophyte senescent stage (PO:0025343) or sporophyte senescent stage (PO:0007017) or death. PO:0020033 coleoptile A sheath-like plant organ (PO:0009008) that surrounds the plumule (PO:0020032) of a plant embryo (PO:0009009) or the emerging shoot apex (PO:0000037) of a seedling.