(a) In this title the following words have the meanings indicated.
(b) “Committee” means the Invasive Plants Advisory Committee.
(c) “Invasive plant” means a terrestrial plant species that:
(1) Did not evolve in the State; and
(2) If introduced within the State, will cause or is likely to cause, as determined by the Secretary:
(i) Economic harm;
(ii) Ecological harm;
(iii) Environmental harm; or
(iv) Harm to human health.
(d) “Landscaping services” includes services for ornamental horticultural design, maintenance, and installation of living plants.
(e) “Tier 1 invasive plant” includes invasive plant species that cause or are likely to cause severe harm within the State.
(f) “Tier 2 invasive plant” includes invasive plant species that cause or are likely to cause substantial negative impact within the State.