L. cuneifolia var. cuneifolia is a shrubby, glabrous plant, devoid of aerial roots. Adult branches are thick and cylindrical, while young branches are almost flattened and both are striated-wrinkled. Arranged alternately in stems, fleshy wrinkled leaves measuring 1.5-6.5 cm long and 0.4 to 1.5 cm wide, may be sub-sessile, linear, oblong, lanceolate or linear-spatulate, while midribs are unconspicuous. Flowers present in solitary racemes and have oval basal scales (prophylls) 0.1 cm long. The calyx is scyathiform, triangular and tridentated. Hexamerous flowers have an intense red colour in specimens from central and western Argentina, while they are orange/yellow in those from the east of the country (Figure 1). Tepals are linear-spatulate and on occasion joined in a tube from their lower middle portion. Stamens are unequal and inserted into the tepals up to the middle of their length. The versatile anterae are oblong and apiculated. The stigma is capitated, the stylus filiform and the ovary inferous. The fruit is a globular, dark reddish berry, crowned by the tubiform calycle. Seeds are endospermous (unlike Psittacantbus) and germinate during early November (Abbiatti, 1946). The flowering season starts in spring and persists till autumn.
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