For what it’s worth, here’s a preliminary list of plant names I have found so far that it will accept if someone wants a basis for translations. Click on the triangle to reveal - if you consider this spoilers, don’t click! (And please don’t quote since that will also reveal the hidden content.) It reads a bit like a gardening catalog and grocery store list with a few odd additions.
Metaflora plant names (likely incomplete)
agave, alfalfa, almond, apple, apricot, artichoke, asparagus, avocado, baltic pine, bamboo, baobab, barley, basil, beetroot, black eyed pea, black mustard, black pepper, blackberry, bok choy, brazil nut, breadfruit, buckwheat, butternut squash, cabbage, cacao, cactus, cardamon, carnation, carob, carrot, cashew, cassava, cedar of lebanon, celery, chamomile, cherry, chestnut, chickpea, chicory, chrysanthemum, cinnamon, citron, clementine, clover, coconut, coffee, common bean, common beech, corn, cotton, cranberry, cucumber, daffodil, dahlia, daisy, dandelion, date, douglas fir, eggplant, fava bean, fern, fig, flax, garden pea, garlic, giant sequoia, ginger, gorse, grape, grapefruit, guava, gum tree, hazelnut, hemp, henna, hibiscus, hop, horseradish, jasmine, kiwi, lavender, leek, lemon, lemongrass, lentil, lettuce, licorice, lime, lotus, lychee, macadamia nut, mace, magnolia, mango, melon, moss, nutmeg, oak, oat, oil palm, okra, olive, onion, orange, orchard grass, orchid, papaya, parsley, parsnip, peach, peanut, pear, pecan, peony, persimmon, pineapple, pistachio, plantain, plum, poison ivy, pomegranate, poppy, potato, pumpkin, quinoa, radish, raspberry, rhubarb, rice, rose, rosemary, rubber, rye, sage, seaweed, senna, sesame, shea nut, silkworm mulberry, silver birch, soy bean, spearmint, spelt, spinach, spruce, strawberry, sugar maple, sugarcane, sunflower, sweet pea, sweet pepper, sweet potato, tamarind, taro, tea, thyme, tiger lily, tobacco, tomato, touch-me-not, tulip, tumbleweed, vanilla, venus flytrap, violet, walnut, wasabi, water lily, watermelon, weeping willow, wheat, yam