Type | Study sites | Descriptions | Plant representative photos |
---|---|---|---|
Mature flower | S1 | Light green, plant length is approximately 7–35 cm, leaf blade cespitose at the base, mostly 4 leaves, rotate two opposite each other, verticillasters densely arranged in capitula or spikes | |
Seedling | S1, S2 | Yellowish green—light green, small plant form, not flowering, plant size 2–7 cm | |
Mature plant | S2 | Dark green, large leaves, often broken and incomplete, plant size 8–30 cm | |
Clustered plant | S2 | Dark green, growing after the first year of harvest, two to three plants growing together, leaves curled and often squeezed together, plant size 5–30 cm |