STEM FUNCTION

Primary function is to

hold leaves and flowers in optimum position and

Also:

Protection (stem spines/thorns of Crataegus/prickles of Rosa) also used for climbing.

Storage or perennation:

Corms – Crocus, stem tubers – Begonia, rhizomes – Iris germanica.

Climbing:

Wisteria by twisting.

Natural vegetative reproduction:

Stolon’s or runners – Fragaria, rhizomes – Festuca rubra, stem tubers – Solanum tuberosum.

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