Lilopsida (Class) or Monocotyledons

(According to Cronquist's 1981 Classification of the Angiosperms)
(Updated 1996)

  1. Alismatidae (subclass) [4 orders, 16 families, ~ 500 spp.]

    1. Alismatales (Alismataceae--Sagittaria)
    2. Najadales (Potamogetonaceae--Potamogeton)

  2. Arecidae (subclass) [4 orders, 5 or 6 families, ~ 5600 spp.]

    1. Arecales (Palmae or Arecaceae--Sabal, Serenoa; Chamaedorea, Latania, Trachycarpus-Greenhouse)
    2. Arales (Araceae--Acorus, Arisaema, Calla, Symplocarpus; Anthurium, Aglaonema, Dieffenbachia, Spathiphyllum, Caladium, Colocasia, Philodendron-Greenhouse; Lemnaceae--Lemna, Spirodela, Wolffiella)

  3. Zingiberidae (subclass) [2 orders, 9 families]

    1. Bromeliales (Bromeliaceae--Ananas, Billbergia, Aechmea, Neoregelia, Vriesia, Tillandsia-Greenhouse)
    2. Zingiberales (Marantaceae--Calathea, Maranta-Greenhouse; Musaceae--Musa; Strelitiziaceae--Strelitzia-Greenhouse; Zingiberaceae--Amonum, Costus-Greenhouse)

  4. Liliidae (subclass) [2 orders, 19-40 families, 25,000-35,00 spp.]

    1. Liliales (Pontederiaceae--Eichhornia-Greenhouse; Liliaceae (including Amaryllidaceae, Agavaceae, and Smilacaceae)--Smilax, Smilacina, Clintonia, Trillium, Hypoxis, Narcissus; Aloe, Asparagus, Dracaena, Sanseviera, Yucca, Agave, Clivia-Greenhouse; Iridaceae--Sisyrinchium, Iris, Neomarica-Greenhouse)
    2. Orchidales (Orchidaceae--Cattleya, Spiranthes, Oncidium, Vanilla, and others-Greenhouse)

  5. Commelinidae (subclass) [7 orders, 16 families, ~ 22,000 spp]

    1. Commelinales (Xyridaceae--Xyris-Greenhouse; Commelinaceae--Commelina, Tradescantia, Zebrina-Greenhouse)
    2. Eriocaulales (Eriocaulaceae--Eriocaulon)
    3. Juncales (Cyperaceae--Scirpus, Carex; Cyperus-Greenhouse; Juncaceae--Juncus; Gramineae or Poaceae--Panicum, Poa, Agrostis)
    4. Typhales (Typhaceae--Typha; Sparganiaceae--Sparganium)

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