Acoraceae, the sweet flag family, is the only family in this order. As of 2023, 3 species of Acorales have been observed in iNaturalist in the US and 3 throughout the world. The most commonly observed species in the US, the Eurasian Sweet-Flag (Acorus calamus), was introduced and is not native. Focus in Trip 8. Introduce in Trip 3 with discussion of invasive species in ecology.

• FAMILY ACORACEAE
  • Eurasian Sweet-Flag (Acorus calamus) - most iNat observations in US for Acorales but is introduced - 10, 3, 6 (Shoenberg Temperate House at MOBOT - NOAH)
  • American Sweet-Flag (Acorus americanus) - most US-native iNat observations, 8 & 3

As of 2023, 238 species of Alismatales have been observed in iNaturalist in the US and 1,640 throughout the world.

• FAMILY ALISMATACEAE
  • Arrowheads (Sagittaria spp.) - Widespread, 8, 6 (Climatron, Woodland Garden and Chinese Garden at MOBOT)
• FAMILY APONOGETONACEAE
  • Cape-Pondweed
• FAMILY ARACEAE
  • Elephant's Ear (Alocasia amazonica) - 6 (Climatron at MOBOT) - NOAH
  • Corpse Flower (Amorphophallus titanum) - 6 (MOBOT)
  • Anthurium (Anthurium wendlingeri) - 6 (Climatron at MOBOT)
  • Jack-In-The-Pulpit (Arisaema triphyllum) - Most iNat observations in US for Alismatales
    

    Cedar Crest, Topeka, KS - 5/6/2018 iNat

  • Common Duckweed (Lemna minor) - Widespread, 8 (Devonian Gorge)
  • Water Lettuce (Pistia sp.) - 6 (Climatron at MOBOT)
  • Eastern Skunk Cabbage (Symplocarpus foetidus) - 3, 8, 10
  • Calla Lily (Zantedeschia aethiopica) - 7, 5
• FAMILY BUTOMACEAE
  • Flowering Rush
• FAMILY CYMODOCEACEAE
• FAMILY HYDROCHARITACEAE
  • Tape-Grass
• FAMILY JUNCAGINACEAE
  • Arrow-Grass
• FAMILY LIMNOCHARITACEAE
  • Water-Poppy
• FAMILY POSIDONIACEAE
• FAMILY POTAMOGETONACEAE
  • Pondweeds (Potamogeton) - Widespread, 8
    • Floating-Leaved Pondweed (Potamogeton natans) - 3 (Adirondacks)
• FAMILY RUPPIACEAE
  • Ditch-Grass
• FAMILY SCHEUCHZERIACEAE
• FAMILY TOFIELDIACEAE
• FAMILY ZOSTERACEAE
  • Eelgrass (Zostera marina) and other eelgrasses, turtlegrasses, etc. - 2 (Everglades/Keys)

As of 2023, 1,176 species of Asparagales have been observed in iNaturalist in the US and 15,483 throughout the world.

• FAMILY AMARYLLIDACEAE
  • Allium
    • Wild Garlic (Allium vineale)
      

      Perry Lake, Kansas - 6/24/2022 iNat

    • Onion (Allium cepa) - Food
    • Garlic (Allium sativum) - Food
    • Leek (Allium ampeloprasum) - Food
  • Daffodil 1 (Narcissus sp.) - Powell Gardens, MOBOT
  • Daffodil 2 (Narcissus sp.) - Powell Gardens, MOBOT
• FAMILY ASPARAGACEAE
  • Maianthemum
    • Solomon's Plume (Maianthemum racemosum) - most iNat observations in the US for Asparagales, 2, 3, 8
    • Canada Mayflower (Maianthemum canadense) - 3, 8
  • Blue Dicks (Dipterostemon capitatus) - 7
  • Agave - 9
    • Havard's Century Plant (Agave havardiana)
      

      Big Bend National Park, Texas iNat

  • Yucca - 7
    • Joshua Tree (Yucca brevifolia) - 7 (California)
    • Mojave Yucca (Yucca schidigera) - 7 (Mojave NP)
    • Spanish Bayonet (Yucca glauca)
      

      Little Jerusalem Badlands, Kansas - 9/17/2021 - iNat Little Jerusalem Badlands, Kansas - 9/17/2021 - iNat

  • Sotol (Dasylirion)
    

    Big Bend National Park, Texas iNat NOAH

  • Asparagus Fern (Asparagus setaceus) - 6 (Schoenberg Temperate House at MOBOT)
  • Asparagus (Asparagus officinalis) - Food
  • Dracaena (Dracaena reflexa) - 6 (Climatron at MOBOT)
  • Grape Hyacinth (Muscari) - Perry Lake, KS
  • Bigelow’s Nolina (Nolina bigelovii) - 7 (Mojave County, AZ)
• FAMILY ASPHODELACEAE
  • Aloe Vera (Aloe vera) - 9, 6 (Schoenberg Temperate House at MOBOT) - NOAH
  • Quiver Tree (Aloidendron dichotomum) - 6 (Desert Dome at Omaha Zoo)
• FAMILY ASTELIACEAE
• FAMILY BLANDFORDIACEAE
• FAMILY BORYACEAE
• FAMILY DORYANTHACEAE
• FAMILY HEMEROCALLIDACEAE
  • Day-Lily
• FAMILY HYACINTHACEAE
  • Hyacinth
• FAMILY HYPOXIDACEAE
• FAMILY IRIDACEAE
  • Irises (Iris) - Widespread
    • Japanese Iris (Iris japonica) - 6 (MOBOT)
  • Crocus (Crocus sp.)
    

    Perry Lake, Kansas - 2/28/2020 iNat

  • Prairie Blue-Eyed Grass (Sisyrinchium campestre) - Perry Lake, KS
• FAMILY IXIOLIRIONACEAE
• FAMILY LANARIACEAE
• FAMILY LAXMANNIACEAE
• FAMILY ORCHIDACEAE
  • Pink Ladies Slipper (Cypripedium acaule) - most iNat observations in the US for Orchidaceae - 2, 3, 8
  • Crane-Fly Orchid (Tipularia discolor) - Second-most iNat observations in the US for Orchidaceae
  • Downy Rattlesnake Plantain (Goodyera pubescens) - Third-most iNat observations in the US for Orchidaceae
  • White Fringed Orchid (Habenaria blephariglottis) - 3 (Ferd's Bog in the Adirondacks)
  • Western Prairie Fringed Orchid (Platanthera praeclara) - 6 (Lied Jungle at Omaha Zoo)
  • White Bog Orchid (Platanthera dilatata) - 3, 6, 7
  • Orchid - Powell Gardens, MOBOT
  • Orchid 2 - Climatron at MOBOT
  • Orchid 3 - Climatron at MOBOT
  • Bowl Flower (Cypripedium japonicum)
• FAMILY RUSCACEAE
• FAMILY TECOPHILAEACEAE
• FAMILY THEMIDACEAE
• FAMILY XANTHORRHOEACEAE
• FAMILY XERONEMATACEAE

As of 2023, 27 species of Dioscoreales have been observed in iNaturalist in the US and 274 throughout the world.

• FAMILY BURMANNIACEAE
• FAMILY DIOSCOREACEAE
  • Wild Yams (Dioscorea quaternata) - 2, 6 (Climatron at MOBOT, 4/26/2003 - NOAH)
• FAMILY NARTHECIACEAE
  • Colicroots (Aletris) - 2

As of 2023, 306 species of Liliales have been observed in iNaturalist in the US and 1,098 throughout the world. The Red Trillium (Trillium erectum) is the most commonly observed species in the US.

• FAMILY ALSTROEMERIACEAE
• FAMILY CAMPYNEMATACEAE
• FAMILY COLCHICACEAE
  • Autumn Crocus
• FAMILY CORSIACEAE
• FAMILY CORSIACEAE
• FAMILY LILIACEAE
  • Fawnlily (Erythronium) - Perry Lake, KS
  • Tulips (Tulipa sp.) - Linnean House at MOBOT - NOAH
  • Lilies (Lilium spp.) - 6 (many locations at MOBOT)
  • Bluebead Lily (Clintonia borealis)
• FAMILY LUZURIGACEAE
• FAMILY MELANTHIACEAE
  • Trilliums (Trillium) - Widespread, 6 (Woodland Garden at MOBOT)
    • Red Trillium (Trillium erectum) - most iNat observations in US for Liliales
    • Barksdale Trillium (Trillium sulcatum) - 3 (Rich Lake in the Adirondacks)
  • Corn Lily (Veratrum californicum)
    

    Nambe Lake, New Mexico - 8/29/2020 iNat

  
  
• FAMILY PETERMANNIACEAE
• FAMILY PHILESIACEAE
• FAMILY RHIPOGONACEAE
• FAMILY SMILACACEAE
  • Catbriars

As of 2023, 11 species of Pandanales have been observed in iNaturalist in the US and 359 throughout the world.

• FAMILY CYCLANTHACEAE
  • Panama Hat Plant (Carludovica sp.) - 6 (Climatron at MOBOT) - NOAH
  • Asplundia sp. - 6 (Climatron at MOBOT) - NOAH
• FAMILY PANDANACEAE
  • Hala (Pandanus tectorius) - most iNat observations in US for Pandanales - 12
  • Screw Pine (Pandanus copelandii) - 6 (Climatron at MOBOT) - NOAH
• FAMILY STEMONACEAE
• FAMILY TRIURIDACEAE
• FAMILY VELLOZIACEAE

The family Petrosaviaceae is the only family in this order. No representatives are native to the US or on display at any known botanical garden. Just 3 species in 2 genera have been observed in iNaturalist throughout the world. They can be found on the Pacific Rim from Indonesia to Japan.

• FAMILY PETROSAVIACEAE
  • 2 species of Petrosavia
  • Japonolirion osense