18(17) Inflorescence subtended by a broad, 2-keeled prophyll; rachilla internodes usually distinct and disarticulating.
花序被一宽阔的部分,2龙骨状;小穗节间通常清楚和脱节。
18(17) Inflorescence subtended by a broad, 2-keeled prophyll; rachilla internodes usually distinct and disarticulating.
花序被一宽阔的部分,2龙骨状;小穗节间通常清楚和脱节。
In the daisy family the numerous bracts which subtend the inflorescence are known as an involucre.
在菊中,苞片数目多而聚生在花序外围,称为总苞。
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