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Lilium iridollae Henry
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Lilium iridollae, pollen
© Copyright UDEL Pollen 2014 · 1
Lilium iridollae, pollen

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Lilium iridollae Henry
panhandle lily

General Information
Symbol: LIIR
Group: Monocot
Family: Liliaceae
Duration: Perennial
Growth Habit : Forb/herb
Native Status : L48   N
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Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   





Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Liliopsida – Monocotyledons
Subclass Liliidae
Order Liliales
Family Liliaceae – Lily family
Genus Lilium L. – lily
Species Lilium iridollae Henry – panhandle lily

Subordinate Taxa

This plant has no children

Legal Status

Threatened and Endangered Information:
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete protected plant list for that location.
Florida panhandle lily Endangered
North Carolina pot-of-gold lily Threatened

Wetland Status

Interpreting Wetland Status

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USF Atlas of Florida Vascular Plants (LIIR)



Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover

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Following modified from Flora of North America
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FNA Vol. 26 Page 177, 192, 193 , 194, 195 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 26 | Liliaceae | Lilium

17. Lilium iridollae M. G. Henry, Bartonia. 24: 2. 1947.

Panhandle lily

Bulbs rhizomatous, often branching, 1.4—2.9 × 9.6—18 cm, 0.1—0.3 times taller than long, 3—4 years' growth evident as annual bulbs, older growth often with perpendicular thin branches leading to small new bulbs and always with noticeable abscission scars, youngest 3 years' growth bearing basal leaves, scaleless sections between annual bulbs 2.7—5.4 cm; scales unsegmented, longest 1—2 cm; stem roots present or absent. Stems to 2 m. Buds ± triangular in cross section. Leaves in 1—5 whorls or partial whorls, 3—10 leaves per whorl, ascending, sometimes only slightly, or occasionally ± horizontal and drooping slightly at tips, 3.1—15.7 × 0.5—3.6 cm, 2.1—9.3 times longer than wide; blade weakly to sometimes narrowly oblanceolate, occasionally obovate, elliptic, or narrowly elliptic, margins not undulate, apex acute, acuminate in distal leaves; central vein in particular impressed adaxially, veins and margins often somewhat roughened abaxially with tiny ± deltoid epidermal spicules. Inflorescences umbellate or rarely racemose, 1—4-flowered. Flowers pendent, not fragrant; perianth Turk's-cap-shaped; sepals and petals reflexed less than 1/5 along length from base, yellow-orange or yellow, sometimes orange-yellow, often suffused with red distally, spotted maroon, often nearly to apex, not distinctly clawed, nectaries exposed, forming visible green star; sepals with 2 parallel, often faint abaxial ridges, 6.2—10.2 × 1.1—1.8 cm; petals 6.1—10 × 1.2—2.2 cm; stamens strongly exserted; filaments parallel along much of length, then widely spreading, diverging 14°—31° from axis; anthers magenta, 1—1.6 cm; pollen rust or sometimes rust-orange; pistil 4.7—6.8 cm; ovary 1.5—2.5 cm; style very pale green, often spotted purple near apex; pedicel 10—23 cm. Capsules 2.5—5 × 1.7—3 cm, 1.2—2.2 times longer than wide. Seeds not counted.

Flowering summer (late Jul--late Aug). Streamsides, bogs, and seeps in wet pine woodlands, hardwood baygall scrub, wet roadside ditches, associated with pitcher plants (Sarracenia spp.); of conservation concern; 0--100 m; Ala., Fla.

As its vernacular name indicates, the panhandle lily is restricted to a small area in the western Florida panhandle and adjacent Alabama, where it has been much reduced in number by land-clearing for pasture and housing. It is now under consideration for federal protection.

Lilium iridollae is allopatrically distributed with its close relative L. superbum, though the latter occurs within 40 miles of the northernmost populations of the panhandle lily. Blooming times are staggered, L. iridollae typically starting to bloom as L. superbum is finishing. Diagnostic features include the usually brighter flower color, less numerous, shorter, noticeably though subtly oblanceolate leaves in five or fewer whorls (L. superbum has six or more), and few flowers, as well as very long rhizomes with basal leaves, as much as four years' visible growth, and extended scaleless sections between the annual growth bulbs. Lilium iridollae is pollinated by all the larger swallowtail butterflies within its limited range, especially the spicebush (Papilio troilus Linnaeus, family Papilionidae), eastern tiger (Papilio glaucus, Linnaeus), and palamedes [Papilio palamedes (Drury)].

Updated: 2019-10-22 22:10:20 gmt
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