Biological screening of selected Pacific Northwest forest plants using the brine shrimp (Artemia salina) toxicity bioassay

SpringerPlus

Table 2 Plant species and tissues with strong, <100 µg/ml LC₅₀, brine shrimp toxicity at 24 h exposure to plant extracts

Species	Part used	LC₅₀ (µg/ml)	95 % CI
Apocynum androsaemifolium	Aerial parts	88	55–141
Oplopanax horridum	Root bark	21	13–32
	Stem bark	35	23–51
Centaurea stoebe subsp.	Roots	87	56–135
micranthos
Grindelia integrifolia	Roots	99	75–116
Leucanthemum vulgare	Aerial parts	16	10–25
Tanacetum vulgare	Aerial parts	62	39–93
Callitropsis nootkatensis	Foliage	42	27–65
	Heartwood	89	53–114
	Inner bark	15	8–24
Calocedrus decurrens	Heartwood	55	35–80
Cedrus deodara ¹	Heartwood	15	9–24
	Sapwood	36	30–39
Chamaecyparis lawsoniana	Heartwood	31	23–39
Juniperus occidentalis	Heartwood	66	56–77
Angelica arguta	Roots	<10	–²
Oenanthe sarmentosa	Aerial parts	76	48–117