knapweed是什么意思

n.[植]黑矢车菊,矢车菊

1. The fields were filled with beautiful wildflowers, including knapweed.
（田野里到处都是美丽的野花，包括臭兰草。）

2. Knapweed is often considered an invasive species that can harm native plants.
（臭兰草通常被认为是一种入侵物种，可能会对本土植物造成伤害。）

一种多年生草本植物，常见于欧洲和亚洲，有刺和紫色花朵。