''Hymenocallis tridentata'', the Florida spider-lily, is a bulb-forming herb native to southern

Florida Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to ...

, to about as far north as Vero Beach.Biota of North America Program, ''Hymenocallis tridentata''
/ref> The species grows in marshes and wet prairies very close to sea level. It is similar to '' H. rotata'', but somewhat smaller.Small, John Kunkel. 1933. Manual of the Southeastern Flora 323
Flora of North America vol. 26, p 290., ''Hymenocallis tridentata''
/ref> ''Hymenocallis tridentata'' is a bulb-forming perennial. Leaves are narrowly linear, up to 50 cm long, deep green. Scape is up to 30 cm tall, with an

umbel In botany, an umbel is an inflorescence that consists of a number of short flower stalks (called pedicels) that spread from a common point, somewhat like umbrella ribs. The word was coined in botanical usage in the 1590s, from Latin ''umbella'' "p ...

of 2 flowers. Flowers are white, fragrant; stamanial cup up to 7 cm across, with uneven teeth along the edge.Moldenke, Harold Norman. 1967. Plant Life 23: 61, ''Hymenocallis traubii''

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photo of herbarium specimen at Missouri Botanical Garden, holotype of ''Hymenocallis traubii'', synonym of ''Hymenocallis tridentata''
{{Taxonbar, from=Q15519908 tridentata Endemic flora of Florida Plants described in 1933 Taxa named by John Kunkel Small Flora without expected TNC conservation status