involucral bract leaflike; heads many, hemispheric, many flowered.
总苞片叶状头状花序很多,半球形,多花的。
Inflorescences terminal, or pseudo lateral when basal involucral bract seemingly a continuation of stem, usually many flowered;
花序顶生,或当基部总苞片好象是茎的延伸时为假侧生,通常多花的;
basal involucral bract leaflike, 1--3 cm. Flower solitary;
基部的总苞片叶状,1-3厘米花单生;
peduncle with an infertile, membranous involucral bract above middle;
花序梗具一不育,膜质总苞片在中部以上;
involucral bract leaflike, often shorter than inflorescence;
总苞片叶状,通常短于花序;