1. This is Bulbing, tuber formation, elongation. ������龥���γɣ��νڡ�
2. Purple sweet potato pigment was a natural anthocyanin pigment derived from root tuber of purple sweet potato. ��ɫ����ɫ���Ǵ���ɫ��������н��������һ����Ȼʳ�û�������ɫ�ء�
3. This species is distinct in always having a globose tuber, capitate inflorescences, and a narrow, smooth achene. ��������һ��״�Ŀ龥��ͷ״�Ļ����һ��խ��ƽ�����ݹ������Ƕ��صġ�
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n.
1. a fleshy underground stem or root serving for reproductive and food storage
2. type genus of the Tuberaceae: fungi whose fruiting bodies are typically truffles