The flowers are a rich purple colour which is sometimes almost pink. They grow in circles close round the main stem, and there is always a pair of broad pointed green leaves separating each circle from the one above.
The flowers have six separate petals, which are long and narrow and rather crumpled looking. These petals are placed at the mouth of a green calyx, which is shaped like a thick tube. This tube is ribbed all over, and has six large green teeth and six smaller green teeth round its mouth. If you gently split open this green tube you find two rows of stamens clinging to its sides. These stamens have purply-pink heads, and there are six long ones which stand up in the centre of the flowers, and six which are shorter and hidden out of sight.
The leaves of the Purple Loose-strife are dark green. Usually they are covered with fine hairs, but sometimes you find leaves which are quite smooth. It is easy to recognise this plant by the rings of flowers growing close round the main stem.
3. COMMON BUTTERWORT
It is always a delight to find the dainty Butterwort. It grows in heaths and bogs and marshes almost everywhere, but is most abundant in the North. The delicate flowers bloom in summer.
You will easily recognise this beautiful highland plant by the leaves. They are thick and juicy, and grow close to the ground in a pale green star-pointed rosette. Each leaf is stalkless and as smooth as satin. On the upper side these leaves are pale yellow-green, but sometimes the edges curl upwards, and then you see that the leaf underneath is so pale that it is almost white.
From the centre of the rosette rise tall, slender stalks with drooping flower-heads. These flowers are dark bluey-purple, and their petals are joined into a short tube which stands in a shallow, toothed calyx-cup.
The mouth of the tube folds back in two parts. The upper half is short, with a deep notch in the middle. The lower half is much longer, and is divided into three deep scollops.
You will find a pink horn-like spur standing up near the base of the short tube, and you can see that the back of the flower is a delicate rose pink colour. Inside the blue tube there are two stamens and a curiously shaped seed-vessel hidden from sight.