Leaves develop chlorosis; stems are short and slender, and anthocyanin discoloration occurs on stems, petioles, and lower leaf surfaces.

叶片变得萎黄，茎短而纤细，并且在茎、叶柄和叶片下表面会出现花青素变色。

youdao

Stems single or several and cespitose , branched above, densely hispid, hairs discoid at base; branches slender, spreading.

茎单一或数个和丛生，上面分枝，密被糙硬毛，毛盘状的在基部；分枝纤细，平展。

youdao

African shrub having decumbent stems and slender yellow honey-scented flowers either solitary or in pairs.

非洲灌木，有横卧的茎和苗条的黄色的有蜂蜜香的叶子，或单独或成双生长。

youdao

This might be mere myth, but one can say with certainty that the iris has always inspired with its fragile, velvet petals and long, slender stems.

WSJ: Purple Reign: Iris Fragrances