also: ふさスグリ · フサスグリ
cultivated currant; Ribes altissimum
Refers specifically to the cultivated currant plant, Ribes altissimum. A botanical term; in everyday contexts, simply スグリ or カラント may be used for currants in general.
The cultivated currant is a shrub whose berries are edible.
I planted a cultivated currant in my garden.
blackcurrant
Standard kanji spelling for the plant, though the kanji 酸塊 is rare and may be unfamiliar to many readers.
Katakana spelling common in botanical contexts or when the kanji are considered too obscure.
Mixed kanji-kana spelling that is easier to read than the full kanji form.
Mixed kanji-katakana spelling; katakana is often used for plant names.
The name 房酸塊 combines 房 (ふさ, 'cluster') with 酸塊 (すぐり, 'currant'), referring to the clustered fruit of the plant. The kanji 酸塊 is an older, less common way to write すぐり.