Disa stricta flowers

    Disa stricta flowers
    Author: Ivan Lätti
    Photographer: Judd Kirkel Welwitch

    The flowers of Disa stricta in picture are pale in purple, lilac, blue and white, growing in a short spike. There may be deeper purple colouring upon most of the corolla segments on some plants. The forwardly spreading lateral sepals have blue longitudinal lines down the centre.

    The elliptic, slightly concave lip is pinkish purple, the deepest coloured segment of the corolla. The lip is well smaller than the pair of ovate lateral sepals that spread, angled outwards immediately below it.

    The nearly erect hood is shallowly helmet-shaped and elongated towards its tip, more or less pointed, the conical spur protruding from its back ends narrowly cylindrical. The spur is about 5 mm long, pointing backwards or upwards. Two smallish lateral petals adhere to the sides of the hood, the dorsal sepal.

    The erect floral bracts with their acutely pointed tips are beige and faintly translucent with longitudinal veins from base to tip. Each bract, folding around the twisted ovary of its flower at its base, has a tip about as tall as or taller than the flower, sometimes pushed aside by it, but not reflexed.

    Flowering happens in late spring to after midsummer (Pooley, 1998; iNaturalist; https://www.pacificbulbsociety.org).

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