knapweed

/nap-weed/US // ˈnæpˌwid //UK // (ˈnæpˌwiːd) //

结缕草,结缕草属植物,野草,节草

Definitions

n.名词 noun

1
- : any composite plant of the genus Centaurea, especially the weedy C. nigra, having rose-purple flowers set on a dark-colored, knoblike bract.

The seeds of brook-lime, flax, and knapweed the twite seems partial to, and this wild-weed field is to them a very paradise.
The moth is out in July and in August, and may often be seen resting on the flowers of knapweed (Centaurea) in the daytime.
The knapweed was stunted and the scabious blooms drooped towards the dusty pasture.
Strong woody knapweed endures it, so does toadflax and pale blue scabious, and wild mignonette.
They are of a greyish colour—nappy—whence the name Knapweed.