Non - flowering plants do not bring about seeds ; rather they reproduce in alternative ways , such as produce spore . Often they are generally telephone " seedless plants " in botany to differentiate them from common trees and garden plant life that usually expose heyday , fruit and seeds . Plants that are gymnosperm and angiosperms can also raise exceptional plants that will not produce seed because of gender or familial mutant , such as from hybridization , which cause their efflorescence to be sterile and not produce seeds .

Bryophytes

The terminus " bryophyte " is a botanical tidings used to group all plants that lack a vascular system and do not flower and thus produce come . The vascular tissues set aside for transport of water , food and nutrients across all parts of the plant organism . spore are formed on these industrial plant , and moisture in the shape of dew , mist or rain alleviate the nuclear fusion reaction of sex gamete to create new individual plants . Prime examples of bryophytes are mosses and liverwort .

Lycophytes

Lycophytes are archaic , dewy-eyed plants that also do not bloom and acquire seeds but do have vascular tissues , unlike the bryophtyes . Lycophytes , such as nightclub mosses , procreate via spore . Two examples are the industrial plant genus Lycopodium and genus Selaginella .

Pterophytes

More advanced than lycophytes are the vascular plants called pterophytes , which assume a physicality many people would connect as being a " plant . " Whisk ferns , woodland ferns and horsetail are representative of pterophytes , which do not blossom and set cum but rely on spore for intimate reproduction .

Male-Gendered Flowering Plants

The more forward-looking plant that do either blossom or grow cones to yield seeds can include individual plant specimens that will not yield come – male person - gendered plant , those that only acquire male peak . Many cycad have either male or distaff plants , and only female plants can produce seeds . Hollies often have differently arouse plant , too , and male holly shrubs and tree will not produce fruit and seeds even though they produce little blossoms . Another example is the ginkgo : male trees never develop the overweight and smelly fruits that house the seed .

Sterile Flowering Plants

Genetic mutations or manipulation by world on flowering plant can also lead to plant life that are sterile – the prime are malformed , are not produced or are incompatible and physically can not make seeds . From a horticultural viewpoint , a seedless industrial plant can be favor , such as a seedless or aseptic tree that does n’t drop messy seeds on a road or terrace , or a seedless vegetable or fruit that is more easily eaten . Examples include a seedless Citrus paradisi , seedless cuke or seedless grape .

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