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Information Herbs perennial (biennial in S. adscendens, annual in S. tridactylites), sometimes rhizomatous, sometimes stoloniferous; caudex not fleshy, scaly, sometimes with bulbils; herbage hairy or stipitate-glandular, sometimes glabrous. Flowering stems ± erect, leafy, 1–40[–100] cm. Leaves in basal rosette and cauline, alternate (opposite in S. nathorstii, S. oppositifolia), cauline reduced; stipules absent; petiole absent or present; blade obovate, oblong, oblong-obovate, elliptic, linear, spatulate, or oblanceolate to ovate, reniform, or round, lobed or unlobed, base cuneate to cordate, ultimate margins entire, crenate, serrate, or dentate, (with lime-secreting hydathodes in S. aizoides, S. nathorstii, S. oppositifolia, S. paniculata), apex acute to obtuse or rounded; venation pinnate or palmate. Inflorescences thyrses or, sometimes, cymes, sometimes solitary flowers, terminal from terminal bud in rosette, 2–200[–1000]-flowered, (some or all flowers replaced by bulbils in S. cernua, S. mertensiana), usually bracteate (ebracteate in S. nathorstii, S. oppositifolia); (bracts leaflike). Flowers [bilaterally symmetric], bisexual (unisexual and plants sometimes gynodioecious, or plants dioecious in S. eschscholtzii); hypanthium free from or 1/4–3/4 adnate to ovary, free from ovary to 0.5 mm, green or pink to purple, (0.1–4 mm); sepals 5, green, sometimes reddish at tips, sometimes ± purple; petals absent or (1–)5, white, cream, yellow, orange, red, pink, or purple, often yellow-, orange-, or red-spotted; nectary disc present or not; stamens 10, (distinct); filaments linear and ± flattened (club-shaped in S. mertensiana); ovary superior to ± inferior, sometimes appearing more superior in fruit, 2-locular, carpels usually (1/4–)1/2 connate proximally or ± distinct; placentation axile (when connate 1/2+ their length) or appearing marginal; styles 2; stigmas 2. Capsules 2(–3)-beaked (± folliclelike in S. oppositifolia). Seeds brown, oblong, ellipsoid, or ovoid, smooth, tuberculate, or papillate. x = 6, 8, 11, 13, 14.