Variant of 葉?

「秈……故字从山。～與稻同，但粗長；實與稻同，但長糙。」

重編國語辭典修訂本：「秈，一種稻米類型。葉片較寬大且長，色淡綠，莖稈較高。穀粒呈細長或扁形。」

From context this appears to be an error form of 葉. 《三農紀》 seems to have many error forms, and so is not a reliable source. I would not like to see this character encoded on the basis of this evidence alone.

Alternative IDS for consideration: ⿱艹架

Jumanjikyo notes on twitter that ⿱艹架 occurs several times in 1789年『私家農業談』 where it is used to write the word 稲架（はさ）. Maybe someone with access to this book can check.