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{{SPlantbox
{{SPlantbox
|familia=Lentibulariaceae
|familia=Lentibulariaceae
|genus=Utricularia
|genus=Utricularia
|species=inflata
|species=inflata
|common_name=Floating bladderwort
|common_name=Floating bladderwort
|name_ref=Flora - A Gardener's Encyclopedia
|name_ref=Flora - A Gardener's Encyclopedia
|habit=herbaceous
|habit=aquatic
|habit_ref=Flora - A Gardener's Encyclopedia
|habit_ref=Flora - A Gardener's Encyclopedia
|Max ht box=12
|Max ht box=12
|exposure=part-sun
|exposure=part-sun
|sun_ref=Flora - A Gardener's Encyclopedia
|sun_ref=Flora - A Gardener's Encyclopedia
|features=invasive
|Temp Metric=°F
|Temp Metric=°F
|min_zone=9
|min_zone=9
|usda_ref=Flora - A Gardener's Encyclopedia
|usda_ref=Flora - A Gardener's Encyclopedia
|max_zone=11
|max_zone=11
|image=Upload.png
|image=BU Utric.jpg
|image_width=240
|image_width=240
}}
}}
'''''Utricularia inflata''''', commonly known as the '''swollen bladderwort''', '''inflated bladderwort''', or '''large floating bladderwort''', is a large suspended aquatic [[carnivorous plant]] that belongs to the [[genus]] ''[[Utricularia]]''. It is a [[perennial plant|perennial]] that is native to the southeastern coastal plains of the [[United States]]. It has often been confused with ''[[Utricularia radiata|U. radiata]]'', which is similar but smaller than ''U. inflata''. It is one of the few carnivorous plants that can be [[invasive species|invasive]].
''U. inflata'' is one of the larger suspended aquatic species in the genus ''Utricularia''. Like all aquatic ''Utricularia'', ''U. inflata'' has no true roots or leaves. The [[wikt:filiform|filiform]] [[stolon]]s are the main vegetative "stem" of the plant and can be up to one meter long or longer but are only 1–2 mm thick. The stolons are [[glabrous]] with 1–5 cm between branched divisions. Occasionally the stolons will produce floating air shoots at the water's surface and [[tuber]]-like organs in the [[substrate (marine biology)|substrate]]. Its filiform leaf-like structures appear to be additional branches off the main stolon and are tiny, filament-like structures that are not true leaves, though the terminology is often disputed among experts. The leaf structures are numerous and anywhere from 2–18 cm long, originating from the stolon base into two primary and unequal segments, which are further divided extensively into additional segments. The stalked, ovoid traps, 1–3 mm long, are produced on the latter leaf segments and are very numerous.<ref name="Taylor 1989" />
In its native range, ''U. inflata'', a perennial species, can begin to flower in January and may continue through June. In this phase of its growth it produces the most visible and noticeable [[plant morphology|morphological]] features of the species: a floating spoke-like [[whorl]] of spongy structures at the water's surface that support the [[inflorescence]]s, often called a "float". ''U. inflata'' typically produces 6 to 8 spokes on the float (sometimes anywhere from 5 to 10), with each spoke 3–10 cm long and up to 8 mm wide. The apical half of the spokes bear numerous, [[wikt:dichotomy|dichotomously]] branched leaf-like segments that can also possess some traps. The 20–50 cm long erect inflorescences are produced from the center of the floating whorl and are usually solitary or possess very few [[scape (botany)|scapes]] for each whorl. An individual plant can produce several whorls and inflorescences, but they are typically distant from each other. The inflorescences produce 9-14 (sometimes 4-17) flowers with unequal [[calyx (botany)|calyx]] lobes, 3–5 mm long. The entire [[wikt:corolla|corolla]] can be 2-2.5 cm long and is bright yellow with brown-colored veins on the [[spur (biology)|spur]] and brown markings on the lower corolla lobe.<ref name="Taylor 1989" />
This species has a [[diploid]] [[chromosome]] number of 2n = 18 for the most common form and 2n = 36 for the larger [[polyploidy|tetraploid]] populations.<ref name="Lewis et al. 1962">Lewis, W.H., Stripling, H.L., and Ross, R.G. (1962). Chromosome numbers for some angiosperms of the southern United States and Mexico. ''Rhodora'', 64: 147-161.</ref> The larger tetraploid "[[race (biology)|race]]", as [[Peter Taylor (botanist)|Peter Taylor]] called it, can be up to twice as large as the regular diploid species. Populations of this race have been located in Florida.<ref name="Taylor 1989" />
==Cultivation==
==Cultivation==
