Dogs Mercury

Tassels of male flowers have already appeared on dog’s mercury.

Perennial Dog’s MercuryMercurialis perennis, is already in flower in the hedgebanks, or at least the male flowers are now showing. Each plant is either male or female but I’ve yet to spot any female flowers; they are long-stalked and grow from the axils. An axil is the joint where a leaf stalk branches from the stem of a plant. Axilla is the Latin for armpit.

Like the petty spurge that I drew yesterday, dog’s mercury is a member of the Spurge Family, Euphorbiacaeae. It spreads by root-like rhizomes and is common throughout most of Britain in woods, hedges, scree and in the sheltered crevices (grykes) of limestone pavements. It is rare in Ireland.

Male flower

The male flowers are just four or five millmetres across and grow in catkin-like tassels. Each has three bract-like tepals.

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