Weed of the Month-July 2018

FALSE CAPER

 (Euphorbia terracina)

(Photos: Leaves and flowers http://www.pestandweeds.com/weed-profiles/weed-herbs/false-caper/; sighted 13-6-18; Mass of false capers – the red tinge in the “middle ground”, photo  E. Cousins, Sorata St )

Since the seeds of this perennial germinate over autumn-spring, you will see new ones emerging now. The false caper is about thigh high. Older plants have 4-5 erect, pale green leafy stems emerging from a single stem at the base.  The leaves alternating up these stems are fairly spread out. They can be up to 65mm long, 2-10mm wide! They don’t have petioles (little stems attaching the leaf to the main stems). Up to 6 flower stems branch out at the end of the main stems with 5 leaves just under the division. The flower stems can branch again and again, and under each fork you will spot two egg-shaped leaves then a cup-shaped cluster of 8-15 male flowers with a single female flower. The flower head is yellow-green. Watch for them from July-October. Next season, new stems can form from the old crown. Small or isolated patches can be hand-weeded. There is a strong tap root with horizontal laterals. However, as with some of the other Euphorbias, this one can exude a corrosive milky sap when you break the stem so be careful if hand pulling…wear gloves. Exploding seed capsules can send seeds several metres away so try to control weeds BEFORE flowers appear!