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Ricinus communis, the castor bean [1] or castor oil plant, [2] is a species of perennial flowering plant in the spurge family, Euphorbiaceae. It is the sole species in the monotypic genus, Ricinus, and subtribe, Ricininae. The evolution of castor and its relation to other species are currently being studied using modern genetic tools. [3]
Eumnamusun_(Kalopanax_septemlobus)_blanched_prickly_castor_oil_tree_shoots.jpg (698 × 523 pixels, file size: 124 KB, MIME type: image/jpeg) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
Kalopanax septemlobus, common names castor aralia, tree aralia, [1] and prickly castor oil tree, [2] is a deciduous tree in the family Araliaceae, the sole species in the genus Kalopanax. It is native to northeastern Asia , from Sakhalin and Japan west to southwestern China .
The tree produces spiky green fruits about the size of a golf ball, which turn brown and drop off the tree over an extended period beginning in fall and continuing over the winter.
Ariadne merione, the common castor, is an orange butterfly with brown lines whose larvae feed almost exclusively on castor (Ricinus communis). It is similar in appearance to Ariadne ariadne, the angled castor. This species is found in South and Southeast Asia. [1] [2] Their wingspan ranges between 30 and 35 mm.
Beavers can cut down trees up to 15 cm (6 in) wide in less than 50 minutes. Thicker trees, at 25 cm (10 in) wide or more, may not fall for hours. [56] When chewing down a tree, beavers switch between biting with the left and right side of the mouth. Tree branches are then cut and carried to their destination with the powerful jaw and neck muscles.
Standing beneath the tree during rain can cause blistering of the skin from even a small drop of rain with the latex in it. Burning tree parts may cause blindness if the smoke reaches the eyes. The fruit can also be fatal if eaten. Many trees carry a warning sign, while others have been marked with a red "X" on the trunk to indicate danger.
Dicotyledon plantlet Young castor oil plant showing its prominent two embryonic leaves (), which differ from the adult leaves. The dicotyledons, also known as dicots (or, more rarely, dicotyls), [2] are one of the two groups into which all the flowering plants (angiosperms) were formerly divided.