萼片的

Sepals imbricate, enlarged in fruit; petals circinate in bud, much longer than sepals.

萼片覆瓦状，在果期扩大；拳卷的花瓣在芽中，远长于萼片。

Sepals (2-)4 or 5(or 6), imbricate or decussate or rarely wholly united in bud, inner ones sometimes petaloid.

萼片(2-)4-5(-6)，在芽期覆瓦状排列或交互对生或很少完全合生，内部的萼片有时花瓣状。

Flowers unisexual. Male inflorescence precocious, elongate, pendulous, with numerous overlapping bracts; each bract usually subtending a small dichasium with 1-3 male flowers; stamens as many as and opposite sepals or, if sepals obsolete, then stamens of inflorescence to 20; filaments very short, connate or nearly so; anthers 2-loculed, thecae connate or separate, opening by longitudinal slits.

雄花序先有花，拉长，下垂，具多数重叠苞片；通常的每苞片对着一小的二歧聚伞花序具1-3雄花；同数的雄蕊和与萼片对生或，如果萼片废退，然后对20的花序的雄蕊；花丝非常短，合生或近合生； 2室的花药，合生的或分开的囊，以纵裂缝开阔的。

Leaves ovate-lanceolate to broadly lanceolate, base rounded, truncate, or semiclasping; plants typically sparsely to densely pubescent; epicalyx segments much longer than sepals.

离开卵状披针形到宽披针形，基部圆形，削去，或；通常的植株疏生到密被短柔毛；副萼片远长于萼片。 1 L。 salicaria 千屈菜

Corolla tube shorter than sepals; calyx with basal glands only inside sepal edges; leaves without a strong intramarginal vein.

花冠筒短于萼片；只在萼片边缘里面的花萼具基部腺体；叶没有一强壮的边脉。

Sepals 6.6-7.8 mm, mucro 1.6-2.5 mm, ratio of mucro/sepal length = 0.22-0.37, outside with 0.1-1.2 mm antrorse to patent nonglandular trichomes, inside glabrous.

萼片6.6-7.8毫米，短尖头1.6-2.5毫米，短尖头/萼片长度比率=0.22-0.37，外面具0.1-1.2毫米向前到开展的非腺毛，里面无毛。

Sepals 8.4-10.8 mm, mucro 0.8-2.2 mm, ratio of mucro/sepal length = 0.09-0.22, outside with 0.3-1.4 mm antrorse ± appressed nonglandular trichomes and purplish 0.3-1.1 mm patent glandular trichomes, inside glabrous.

萼片8.4-10.8毫米，短尖头0.8-2.2毫米，短尖头/萼片长度比率=0.12-0.31，外面具0.4-1.2毫米多少开展的非腺状毛和有时具0.2-0.6毫米开展的具腺毛，里面无毛。

Sepals 5, spreading. Petals 5, erect to suberect, usually smaller than sepals, base usually prolonged into a spur.

萼片5，平展。花瓣5，直立对近直立，通常延长成为一距的小于萼片，基部的通常。

Petals alternisepalous,(2-)4, absent in female flowers of some Myriophyllum , imbricate, longer than sepals, often deciduous with stamens.

花瓣与萼片互生，(2-)4，但是Myriophyllum的一些种类雌花无花瓣，花瓣覆瓦状排列，比萼片长，通常与雄蕊一起脱落。

Sepals and petals 5, persistent after anthesis, sepals free, entire or rarely glandular-ciliate, petals entire or glandular-ciliate, apiculus absent.

萼片和花瓣5，宿存在花后，萼片离生，全缘或很少具腺具缘毛的，花瓣全缘或具腺具缘毛，细尖无。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。