Cotton bush
This plant is a naturalized plant native to South Africa and grows 1 to 2 m in height.
It has an umbel which hangs down a little and around 10 white flowers bloom here.  When the white bud blooms, a flower characterizing the one of Gomphocarpus genus whose petals bend backward and the purple-tinged corona is emphasized.  It has a gynostegium whose tip is pentagonal and its anthers are attached to each side.  Next the anthers, the funnel-shaped coronas which pool nectar, attach to the gynostegium.
The flower is very unique and the seed capsule, which looks like a prickly balloon resembling a porcupine fish, is even more so.  However, it never pricks even when touched.  The fruit is the capsule, and turns light brown and splits open naturally to release black seeds with a pappus like a white silk thread.  It makes me think that the pappus could fly a million miles carrying the descendant when I look at it.  In flower arrangements, this plant is sometimes used, as the green color of the capsule is beautiful and the texture is interesting.
This plant secretes white milky sap, which is highly toxic for the cornea.  This sap might not squirt into the eye, but it should be avoided to touch the eye, after touching this sap.  When the corneal is damaged by this sap corneal edema is developed causing its opacity and difficulty seeing.  It also causes conjunctival hyperemia and pain.  This problem is normally healed with steroid eyedrops.
Classification Asclepiadaceae Gomphocarpus
Scientific name Gomphocarpus fruticosus
Japanese name Husen-towata
English name Cotton bush
Native locality South Africa
Ecological description Evergreen shrub
RDB ---
Planting place Saguaro Greenhouse
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