Young stems terete to frequently 4-angled or subalate, glabrous, puberulous, pubescent, or tomentose, often glabrescent.

嫩茎圆柱状到常地四棱形或略似翼的，无，微柔，短柔，或的，通常后脱落。

Plant 25–50 cm, monocarpic, glabrous throughout.Caudex simple.

植株25-50厘米，一次结果，全株无。

Shrubs or small trees, usually erect, rarely viny or climbing, glabrous, rarely pubsecent, branches often inermous.

灌木或小乔木，通常直立，很少倾斜或攀援的，无，很少短柔，枝常无刺。

Stem straight, glabrous, muricate near nodes.

茎直，无，粗糙的近的节。

Petals usually 5, rarely more, occasionally absent, white, pink, or red, glabrous or hairy, margin entire, rarely premorse.

花瓣通常5，很少更多，偶尔无，白，粉红，或红，无或有，边全缘，很少啮蚀状。

Shrubs evergreen or sometimes semievergreen; branchlets and pedicels not setose. Leaf blade adaxially glabrous; corolla creamy yellow, lined and flushed rose on outside. Fl. May–Jun.

有时的常灌木或半常；小枝和花梗不具刚。叶片正面无；在外面上的花冠米黄，线形和带玫瑰；花期5月6月。