Oxalis cernua, Thunb.
The other flowers of the lonaas are the papita de San Juan (Begonia geranifolia), with red petals contrasting with the white inner sides, valerians, the beautiful Bomarea ovata, several species of Oxalis, Solanum and crucifers.
Here also are other plants with edible roots - the oca (Oxalis tuberosa), ulluca (Ullucus tuberosus), massua (Tropceolum tuberosum), and learc6 (Polymnia sonchifolia).
In the sierra region, wheat, barley, oats, quinua (Chenopodium quinoa), alfalfa, Indian corn, oca (Oxalis tuberosa) and potatoes are the principal products.
It is found in the form of its acid potassium salt in many plants, especially in wood-sorrel (Oxalis acetosella) and in varieties of Rumex; as ammonium salt in guano; as calcium salt in rhubarb root, in various lichens and in plant cells; as sodium salt in species of Salicornia and as free acid in varieties of Boletus.
Among the land plants may be noted the blue anemone; the ranunculus along the road-sides, with a strong perfume of violets; the Malta heath, which flowers at all seasons; Cynomorium coccineum, the curious " Malta fungus," formerly so valued for medicinal purposes that a guard was set for its preservation under the rule of the Knights; the pheasant's-eye; three species of mallow and geranium; Oxalis cernua, a very troublesome imported weed; Lotus edulis; Scorpiurus subvillosa, wild and cultivated as forage; two species of the horseshoe-vetch; the opium poppy; the yellow and claret-coloured poppy; wild rose; Cartaegus azarolus, of which the fruit is delicious preserved; the ice-plant; squirting cucumber; many species of Umbelliferae; Labiatae, to which the spicy flavour of the honey (equal to that of Mt Hymettus) is ascribed; snapdragons; broom-rape; glass-wort; Salsola soda, which produces when burnt a considerable amount of alkali; there are fifteen species of orchids; the gladiolus and iris are also found; Urginia scilla, the medicinal squill, abounds with its large bulbous roots near the sea; seventeen species of sedges and seventy-seven grasses have been recorded.
3), Oxalis acetosella (wood sorrel) and Lamium amplexicaule are commonly occurring instances.
Geranium, Cardamine pratensis, mallows, Rubus, Oxalis, Epilobium, &c., but many species show more or less well-marked median symmetry (zygomorphism) as Euphrasia, Orchis, thyme, &c., and red, blue and violet are the usual colours.
Tuberosum) and of Oxalis (0.
In some Australian acacias, and in some species of Oxalis and Bupleurum, the petiole is flattened in a vertical direction, the vascular bundles separating immediately after quitting the stem and running nearly parallel from base to apex.
Above the sea, the indigenous species include the potato, maize, oca (Oxalis tuberosa), and quinua (Chenopodium quinoa), and the exotic species, wheat, barley, oats, alfalfa (Medicago saliva), and most of the fruits and vegetables of the northern temperate zone.
Among the more important productions, the potato, oca (Oxalis tuberosa), quinoa (Chenopodium quinoa) and some coarse grasses characterize the puna region, while barley, an exotic, is widely grown for fodder.