燕麥穗的植物學小稿

Botanical watercolor illustration of one ripe oat stem with hanging seed heads and two narrow leaves, accurately organized branching, fine sepia outline and muted golden wash on ivory paper, no labels or numbers. Single standalone horizontal 3:2 image.

一根成熟燕麥莖的植物水彩插畫，垂種穗和兩片窄葉，準確分枝、細棕輪廓與柔金水洗在象牙紙上，無標籤數字，獨立橫向3:2。