African Rue, Syrian Rue
(Peganum harmala)
Zygophyllaceae (Caltrop Family)
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African Rue or Syrian Rue is a problem more south & west of here
o has 3-lobed leaves with linear lobes, dense branching
o forms a mound of fleshy, odorous leaves and branches about 2 feet tall and 3-4 feet wide
o has showy white, 5-petaled flowers about 1” across midsummer, followed by globe-shaped, papery seed pods—pods are not spiny as on puncturevine
o is toxic to livestock, hallucinogenic and is the original source of red dye used in Persian rugs
o may not be able to overwinter here, but due to tolerance of most herbicides and adaptation to dryland systems, may be difficult to control if it does reach here as a weed