| 词条 | Polemonium micranthum |
| 释义 |
|image = Polemonium micranthum 9496.JPG |genus = Polemonium |species = micranthum |authority = Benth. }} Polemonium micranthum is a species of flowering plant in the phlox family known by the common names annual polemonium[1] or annual Jacob's-ladder. It is native to western North America from British Columbia to North Dakota to California as well as disjunct in the Andes of southern Argentina and Chile. It can be found in many types of shrubby habitat, such as sagebrush scrub and foothill woodlands. It is an annual herb with a branching or unbranched stem taking a matted, spreading, or upright form. The slender stems are up to about 30 centimeters long and the herbage is coated in short, soft hairs and stalked glands. The leaves are located along the stem, each divided into several small leaflets. The solitary flowers have small white or pale blue lobed corollas tucked within cuplike calyces of hairy, pointed sepals. References1. ^{{PLANTS|id=POMI|taxon=Polemonium micranthum|accessdate=9 October 2015}} External links{{Commons|Polemonium micranthum}}
2 : Polemonium|Flora of North America |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。