Полиморфная функция, не совсем корректный результат

#ifndef flower_h_
#define flower_h_
 
 
#include<iostream>
#include <string>
using namespace std;
 
class roslunu
{public:
    char*name;
    roslunu()
    {
        name=new char[12];
        name="Rose";
    }
virtual ~roslunu(){delete name;}
virtual void get_name(){cout<<"Name "<<name;}
 
};
 
 
class flower:public roslunu
{public:
char*color;
flower(char*d="Red"){color=new char[12]; color=d;}
virtual ~flower(){delete color;}
void get_name(){name="Margarite"; cout<<"\nName "<<name;};
 
};
 
class number_stebel:public flower
{public:
    int number_steb;
    number_stebel(){ number_steb=2;}
void get_name(){name="Aister"; cout<<"\nName "<<name;}
 
};
 
class number_lustkiv:protected flower
{public:
    int number_lust;
    number_lustkiv(){number_lust=4;}
};
 
 
#endif

#include "flower.h"
#include <fstream>
#include <sstream>
#include <string>
#include <algorithm>
#include <iostream>
#include <iterator>
#include <cctype>
FILE*uf;
 
using namespace std;
 
void main()
{
roslunu a_1; roslunu* a_1r;
flower a_2; 
number_stebel a_3; 
number_lustkiv a_4;
cout<<" Name:"<<a_1.name<<endl;
cout<<" Name:"<<a_2.name<<" Color:"<<a_2.color<<endl;
cout<<" Name:"<<a_3.name<<" Color:"<<a_3.color<<" K-st stebel: "<<a_3.number_steb<<endl;
cout<<" K-st lustkiv: "<<a_4.number_lust<<endl;
 
cout<<" Robota polimorfizmy\n";
a_1r=&a_1;
a_1r->get_name();
a_1r=&a_2;
a_1r->get_name();
a_1r=&a_3;
a_1r->get_name();
 
cout<<endl;
 
}

#include <string>

class roslunu
{public:
        char buf[12];
    roslunu()
    {char*name="Rose";
strcpy(buf, name);
    }
    
 
virtual void get_name(){cout<<"Name "<<buf;}
 
};