萼片

Male flowers: pedicels long and slender; sepals 4-7, imbricate, margins entire or serrulate; petals absent; disk of 4-7 segments, these sometimes connivent or fused; stamens 4-7, inserted at base of disk, longer than sepals; filaments free; anthers 2-locular, erect, extrorse, longitudinally dehiscent; pistillode small, 2- or 3-lobed.

雄花：花梗长和纤细；萼片4-7，覆瓦状，边缘全缘或有细锯齿；花瓣无；花盘4-7裂，有时靠合或愈合；雄蕊4-7，着生于花盘基部，长于萼片；花丝离生花药2室，直立，外向，纵向开裂；退化雌蕊小，有叶2或3。

Seeds few or numerous, rarely 1; sepals herbaceous; petals shorter or longer than sepals; herbs erect, diffuse, or cushionlike

种子很少或多数，很少1；萼片草质；花瓣短或更长于萼片；草本直立，铺散，或垫状 19 Arenaria 无心菜属

Male flowers: sepals 4-8, usually unequal, imbricate; petals absent; disk absent or obscurely glandular and between stamens (sometimes interpreted as staminodes); stamens 4-8, as long as or longer than sepals; filaments free; anthers 2-locular, introrse or extrorse, longitudinally dehiscent; pistillode usually enlarged at apex, depressed and bifid, usually pubescent.

雄花： 萼片4-8，通常不等长，覆瓦状；花瓣无；花盘无或生于雄蕊间且具腺；雄蕊4-8，等长于或长于萼片；花丝离生花药2室，内向或外向，纵向开裂；退化雌蕊通常在顶扩大，背腹扁平且2裂，通常短柔毛。

Historically, plants of this affinity with stamen number equal to sepal number were Ludwigia , and those with stamens twice as many as sepals were Jussiaea , but Raven and others demonstrated reticulate variation in this character, and treated the two groups as a single genus.

历史上，常具有与萼片数相同的雄蕊数的植株为 Ludwigia的，而雄蕊数为萼片的2倍的是Jussiaea的，但 Raven和其它人证明这一特征成网状式的变异，并且把这两个类群归入同一属内。

Male flowers: pedicel articulated at base; sepals 5, free, valvate, initially curved around stamens, later reflexed; petals and disk absent; stamens 5, free, inserted at bases of sepals; filaments short; anthers larger, thecae 2, parallel, introrse, dehiscence longitudinal; pistillode short and broad, peltate.

雄花 花梗有节在基部；萼片5，离生，镊合状，最初在雄蕊周围弯曲，后反折；花瓣和花盘无；雄蕊5，离生，着生在萼片的基部；花丝短；花药大，囊2，平行，内向，纵裂；退化雌蕊短和宽，盾形。

Male flowers: sepals 5, imbricate; petals 5, longer than sepals; disk absent; stamens [5 or]10 and 2-seriate, inserted on fleshy receptacle, outer ones alternating with petals, inner ones sometimes absent or reduced and scalelike; filaments free; anthers longitudinally dehiscent, 2-loculed; pistillode present.

雄花： 萼片5，覆瓦状；花瓣5，比萼片长；花盘无；雄蕊 [5或者 ]10 和2轮，着生于肉质花托，外轮与花瓣互生，内轮有时无或退化成鳞片状；花丝离生花药纵向开裂，2室；退化雌蕊宿存。

Sepals purple-blue or blue, abaxially puberulent; spur subulate or cylindric-subulate, 1.5--2 (--2.2) cm, straight or slightly recurved, base 2.5--3.5 mm in diam.; other sepals 1--1.9 cm.

萼片紫色蓝色的或蓝色，背面被微柔毛；距钻形或圆筒状钻形的，1.5-2(-2.2)厘米，直或稍下弯，基部2.5-3.5毫米直径；其它的萼片1-1.9厘米。

Outer 3 sepals linear-oblong, 1--1.5 × 0.3--0.4 cm, apex obtuse; inner 3 sepals smaller.

外部3个萼片线形长方形， 1-1.5 * 0.3-0.4 厘米，先端钝；小内部3萼片。

Leaf blade abaxially densely grayish white appressed stellate-tomentose throughout; sepals ovate-deltoid, 1.5–2.5 × 0.8–1.2 mm, midvein usually abaxially distinct or sepals keeled at anthesis; stamens included.

全部的浓密的叶片背面浅灰色的白色的贴伏的被星状绒毛；萼片卵形正三角形， 1.5-2.5 * 0.8-1.2 毫米，中脉通常离生或萼片龙骨状在花期；雄蕊内藏 3 Clethra petelotii 白背桤叶树

Flowers upright , more or less spreading ,3-10cm across. Tepals 4 but sometimes 5-6,white ,or pink to dark red-purple.

花朵呈直立状或平展，花径达3-10cm.4个萼片但是有时会有5-6个萼片，白色，粉色，深紫红色。

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。