sea plant ink hand drawn on white background. laminaria, brown kelp, ascophyllum seaweed

black set line ink vector ascophyllum underwater kelp sea green plant seaweed ocean illustration water nature alga cosmetology medicine aquarium isolated china aquaculture hand drawn dermatology rhodymenia background flora seafood health leaf laminaria floral saltwater herb ingredient organic element logo fucus weed aquatic art chlorella spirulina white