Chickpea Milkvetch

Cicer milkvetch exhibits rhizomes (sometimes referred to as creeping roots), or an extended horizontal stem propagated underground, which continuously grow as the plant ages. Thus, the plant becomes increasingly vigorous with time. In regards to proliferation, cicer milkvetch spreads by its utilization of rhizomatous growth, in addition to reproduction via seeds. Seeds (produced by pods) have a very thick integument (or seed coat) which requires scarification to proceed towards germination. The hardy aspect of the seed coat acts as a preventative barrier against microbial invasion. In addition, the thickness of the seed coat reduces the capacity for water absorption, which in turn allows for the seed to remain dormant for a longer period of time. Stipules are readily observed and green in color. Leaves are compound and alternate.

Astragalus cicer is suited best to grow in the Rocky Mountain area in the United States; however, it has been shown that cicer milkvetch also flourishes in coastal areas – and more specifically has been found to perform well in the coasts of Alaska. Because cicer milkvetch displays high tolerance to drought, it has been shown to survive in dryland areas of Idaho, Montana, and Wyoming that often receive less than 14 in (360 mm) of yearly rain.

In general, cicer milkvetch can be seen to grow in the fringes of forests, meadows, and alongside streams; however, it has also been reported that the plant proliferates along roadsides. Cicer milkvetch has the capacity to grow in a vast amount soil types and textures, such as clay and sand. As such, it has been shown to proliferate in coarsely-textured soil. Excessive salt proves to be harmful to the plant. Soils deviating from the 6.0 to 8.1 pH range are also indicative of a less-than-desirable condition for growth. Despite these few restrictions, cicer milkvetch persists excellently in less nutrient-rich or disturbed soils. Although the plant grows exceptionally well in higher temperatures, it has been shown to exhibit slow-growth at temperatures as low as 7 to 18 °C. Drought tolerance is another important aspect in regards to the inherent durability of the plant. In regards to obtaining adequate amounts of nitrogen, cicer milkvetch employs a mutualistic relationship with rhizobia bacteria.