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Key to Aizoaceae

Aizoaceae

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1 Leaves opposite, connate-perfoliate around the stem, triangular in cross-section; fruit a fleshy, indehiscent berry; [subfamily Ruschioideae]
1 Leaves opposite or alternate, sessile or short-petiolate, flattened in cross-section (though often succulent-thickened); fruit either a dry, indehiscent nut or a capsule.
  2 Leaves linear, lanceolate, or oblanceolate, the blade > 3× as long as wide; [subfamily Sesuvioideae]
  2 Leaves orbicular, obovate, or triangular-ovate, the blade < 2.5× as long as wide.
    3 Leaves opposite to subopposite; fruit a circumscissile capsule; [subfamily Sesuvioideae].
      4 Sepals lacking appendages; stamens 1-3 (-5); seeds ca. 150 per capsule
      4 Sepals appendaged; stamens 5-10; seeds 1-12 per capsule
    3 Leaves alternate; fruit either a loculicidal capsule or an indehiscent nut.
        5 Fruit a loculicidal capsule; ovary superior; stems densely covered with white scales; [subfamily Aizooideae]
        5 Fruit an indehiscent nut; ovary inferior; stems green; [subfamily Tetragonioideae]

Key to Sesuvium

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1 Petiole with lateral flap margins fimbriate; leaves of each opposite pair distinctly unequal in size
1 Petiole with lateral flap margins entire; leaves of each opposite pair equal in size (or nearly so).
  2 Shoots densely covered with bulging bladder cells (crystalline globular papillae), giving plants a grayish cast; plants not rooting at nodes.
    3 Inflorescence bracts 2 (1 pair), each ca. 1 mm long; [rare waif]
    3 Inflorescence bracts 4-6 (in 2-3 pairs), each bract ca. 5 mm long; [native, s. MS westwards]
  2 Shoots smooth, green; plants rooting at nodes or not.
      4 Flowers and fruits on pedicels (3-) 5-20 mm long; plants perennial, rooting at nodes; styles and locules 5.
      4 Flowers and fruits sessile (or on pedicels to 1 mm long); plants annual, not rooting at nodes; styles and locules 2-3.
        5 Seeds smooth, ca. 1 mm long; capsule ovoid, as long as or shorter than the perigone; [widespread in our area]
        5 Seeds wrinkled, ca. 1.5 mm long; capsule tapered, slightly longer than the perigone; [coastal TX (Kenedy County)]