All land plants share the following characteristics: alternation of generations, with the haploid plant called a gametophyte and the diploid plant called a sporophyte; formation of haploid spores in a sporangium; and… Land plants include nonvascular plants and vascular plants.

Vascular plants, which include seedless plants and plants with seeds, have apical meristems, and embryos with nutritional stores.

vascular plant — a plant in which there is a network of cells that conduct water and solutes through the organism. sporangium — (plural: sporangia) the organ within which spores are produced. nonvascular plant — a plant that lacks vascular tissue formed of specialized cells for the transport of water and nutrients. apical meristem — the growing point in a vascular plant at the tip of a shoot or root where cell division occurs.