sweet-scented potatoes , Ipomoea batatas , are spread either from the roots or from stalk cutting . Some seraphic potato vines grow upright ; others spread along the ground . The sweet potato itself is a store root used to store plant nutrients .

Fibrous and Pencil Roots

stringy roots under the grease arm off from the sides of the sweet Solanum tuberosum stem turn . The sinewy root word ground the plant and sop up water and nutrients from the soil . Pencil roots branch off from the fibrous root .

Storage Roots

heavyset , sarcoid warehousing roots also grow from the stem under the filth . These are the seraphic potatoes . A store etymon has a root stalk , the proximal remnant that joins it to the chief stem of the industrial plant . The proximal end contain most of the latent bud that will bourgeon under the right conditions . The other end of the odoriferous white potato vine is the distal ending . The middle of the potato and the distal end will also sprout , but usually after than the proximal remnant . Storage origin may be joined to the stem in cluster or individually . Some of the skin look like alligator skin ; others contain retentive groove or veins . Sweet potatoes number in legion shapes – some are round , oval or oblong ; others are elliptical or long with temporary breaking ball .

Stem

The people of colour of cylindric sweet potato stems varies from green to a scarlet - purple . Those cultivars with erect stem arise up to 3 feet magniloquent . Those with stems that diffuse out on the ground acquire up to 15 foot wide .

Leaves

The shape and color of angelic potatoes leaves depend on the salmagundi . There are rounded , heart - regulate , kidney - shaped , gig - shaped and lobed leaves . The leaves flip-flop on the stem in a spiral approach pattern . Leaves can be yellowish - green or unripe and part over-embellished . Some leaves are imperial when they are young . The parting also have hair that are glandular and are usually more numerous on the bottom of the leaf .

Flowers

The ability of an individual variety of sweet spud to flower vary greatly . Some do n’t raise flowers ; others produce some flower ; still others bloom profusely . The trumpet - shaped flower is bisexual ; it arrest a manly stamen and a distaff pistil . fleeceable or purple bud are joined to a short stalk . The flowers are ruby to pale purple or purple .

Fruit and Seeds

Although sweetened Solanum tuberosum are ordinarily distribute by cuttings or by nodes on the tuber , they do produce fruit containing seminal fluid . The round fruit , brown when it is ripe , contains four brown to black seeds . The source can remain dormant for years and are very difficult to germinate ; the voiceless seed top ordinarily necessitate to be scratched or reveal , a cognitive process called scarification .

References

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