![]() The light, open, globular structures form very effective tumbleweed diaspores, dropping their seeds usually within a few days as the follicles fail under the wear of rolling. When the seeds are about ripe, the fruit remain attached to the peduncles, but the stem of the umbel detaches, permitting the globes to roll about in the wind. ![]() Several Southern African genera in the family Amaryllidaceae produce highly optimised tumbleweeds their inflorescences are globular umbels with long, spoke-like pedicels, either effectively at ground level, or breaking off once the stems are dry. Amaranthus retroflexus, which is indigenous to tropical North and South America, has become nearly cosmopolitan largely as a weed, but like many other species of Amaranthus, it also is widely valued as animal forage and as human food, though it should be utilised with caution to avoid toxicity. Īmong the Amaranthaceae ( s.s.) that form tumbleweeds, there are several species of Amaranthus, such as Amaranthus albus, native to Central America but invasive in Europe, Asia, and Australia and Amaranthus graecizans, native to Africa, but naturalized in North America. Atriplex rosea is called the tumbling oracle or tumbling orach. Other members of the Amaranthaceae (s.l.) that form tumbleweeds include Kochia species, Cycloloma atriplicifolium, and Corispermum hyssopifolium, which are called plains tumbleweed. Selaginella lepidophylla, a North American desert tumbleweed The tumbleweed diaspore disperses seeds, but the tumbleweed strategy is not limited to the seed plants some species of spore-bearing cryptogams-such as Selaginella-form tumbleweeds, and some fungi that resemble puffballs dry out, break free of their attachments and are similarly tumbled by the wind, dispersing spores as they go. In the latter case, many species of tumbleweed open mechanically, releasing their seeds as they swell when they absorb water. Īpart from its primary vascular system and roots, the tissues of the tumbleweed structure are dead their death is functional because it is necessary for the structure to degrade gradually and fall apart so that its seeds or spores can escape during the tumbling, or germinate after the tumbleweed has come to rest in a wet location. Xerophyte tumbleweed species occur most commonly in steppe and arid ecosystems, where frequent wind and the open environment permit rolling without prohibitive obstruction. In most such species, the tumbleweed is in effect the entire plant apart from the root system, but in other plants, a hollow fruit or inflorescence might detach instead. It is a diaspore that, once mature and dry, detaches from its root or stem and rolls due to the force of the wind. Shoot, that sounded weird and creepy.A tumbleweed is a structural part of the above-ground anatomy of a number of species of plants. However Bob Ross, I’m sure you’ll agree has many feline qualities. I’m no Scientician.Ĭats: 2/5 - there are no cats. My only concern is that one of the rolling Bob Rosses in the middle is floating in mid-air, somehow not at all affected by gravity. The question is, is it so boring that I’m inspired to actually get up and paint something beautiful like a plastic bag blowing in the breeze, or Christopher Walken wearing knee-high socks? Nope!Īesthetic Value: 4/5 - Obviously it’s a good painting, it’s a good animation. And in front of that painting…is a bunch of rolling heads! Both get boring after awhile. Watchability: 3/5 - behind all those rolling heads is a fantastic painting. Theme: 3/5 - Painting is an infinite loop where our minds roll and bounce and deconstruct and paint and roll and bounce some more and deconstruct and paint and then roll and bounce some more and deconstruct and Bob Ross is basically the “King of Painting” and it maybe also an allusion to the decline of sacred morality in the beheadings by King Henry VIII of his wives, and maybe there’s also an allusion to bouncy hotels, it’s all very very deep and very very thematic and if you want to use the word “Juxtaposition” I say go right on ahead, it makes you sound pretty smart. ![]() ![]() That was a great moment, one we’ll never forget. Not, at least, as much as I did when Olli Jokinen finally got a bite of that waffle. I can see how someone might laugh out loud at it. Humour: 2/5 - it’s funny - true - but is it “ha ha” funny? Well, not really. Here is a good song to listen to right now, while we (me) grade this work of “art”. Oh look, a Bob Ross Tumbleweed gif! Well isn’t this fancy.
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