TSUMUGU · TOCFL 5 (est.) · 字
蓬
蓬 ＝ 艹 ＋ 逢
ㄆㄥˊ · péng
noun — a bushy wild grass, fleabane; adj — fluffy, disheveled, luxuriant
字源 FORM — what the parts do
艹義grass, a plant
I逢 féng → 蓬 péng — the onset shifts f- to p- within its {b,p,f} family
Grass (艹) plus 逢 (féng) for the sound — 說文 names a wild, many-stemmed weed, the kind that breaks loose and rolls. Its tangle gives the everyday senses: 蓬鬆 and 蓬亂 (fluffy, disheveled), and the upward rush of 蓬勃 (vigorous, thriving). The same 逢 heads its bamboo cousin 篷.
故事 STORY — a scene to remember it by
一叢野草（艹）亂生亂長，風一吹整團翻起——蓬。
A clump of wild grass (艹) grows every which way, the whole tangle tossing in the wind — 蓬.
字源記憶法
意 · Meanings
(本義)蓬草（叢生的野草）— a bushy wild grass, fleabane
→蓬鬆、蓬亂— fluffy, disheveled常用
→蓬勃— vigorous, flourishing常用
(本義) original meaning · → ⇒ each arrow = one more step of extension