Daily Sketches – June 30 Flowers – 15. Euphorbia platyphyllos

This plant grows spontaneously in my garden and made me a little obsessed with Euphorbia genus. Thus I found out that one of the houseplants I thought was succulent is actually Euphorbia hypogaea and that there are thousands of Euphorbia species with fascinating shapes and colors.

Here are few of my favorites:

1. E. atropurpurea 2. E milii 3. E. pulcherrima 4. E. seguieriana
1. E. pithyusa 2. E myrsinites 3. E. marginata 4. E. canariensis

Euphorbia have naked flowers, entirely missing sepals or petals. The inflorescence is composed of bracts, male flowers and female flowers and is called cyanthium.

In the first stage of flowering, the female flower appears in the middle of a ring of involucral glands. These glands can be round, horse-shoe shaped or horned, often of a different colour than the bracts (yellow, red or black) and secrete a layer of nectar which is attractive to flies and other insects. The female flower is reduced to its reproductive parts: a 3-locular ovary and 3 styles with bilobed stigma.

In the second stage of flowering, the female flower bends away and makes room for the male flowers, very reduces, to one stamen and a bilobed anther.

Beneath the involucral glands a new generation of inflorescences can be seen appearing.

Euphorbia platyphyllos morphology

In today’s video I’m sketching the cyanthium inflorescence of Euphorbia platyphyllos with ink and watercolor, adding the 15th sketch of flower to my June project.

Join me on Patreon for 30 days of daily flower sketches!
Every day of June I will post a video tutorial in which I will draw a flower from scratch. You will learn how flowers are composed, how to sketch and render them realistically using ink and watercolor.

By joining my Patreon you will have also instant access to another 40+ tutorials and live sessions on classical drawing and botanical illustration!

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s