Utricularia pusilla Vahl

Tiny bladderwort (en)

Species

Angiosperms > Lamiales > Lentibulariaceae > Utricularia

Characteristics

Annual or perhaps sometimes perennial terrestrial herbs; stolons filiform, subterranean, bearing photosynthetic organs and traps. Photosynthetic organs obovate-spatulate, 1-nerved, sometimes numerous and conspicuous but often ? decayed at anthesis, to 10 mm long and 3 mm wide. Traps obliquely ovoid, stalked, ca. 0.5 mm long, the mouth lateral, the upper lip with 2 subulate densely ciliate appendages. Inflorescences to 7 cm long; peduncle filiform, 1-15-flowered; bracts peltate, ? orbicular, the sterile scales similar to the bracts, numerous on the peduncle below the raceme and also alternating with fertile bracts on the raceme axis; pedicels spreading, 1.5-2.5 mm long. Flowers with the calyx lobes ovate, unequal, the lower lobe slightly larger; corolla yellow, ca. 6 mm long, the upper lip narrowly ovate, entire, the lower lip descending, 3-lobed, the palate gibbous, the spur subulate, acute, descending, 2-3 times as long as the lower lip. Capsules globose, ca. 1.5 mm long, considerably exceeded by the accrescent lower lobe of the calyx; seeds ovoid, ca. 0.35 mm long with about 11 longitudinal stria-tions.
Life form
Growth form herb
Growth support free-standing
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Sexuality hermaphrodite
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Environment

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Hardiness (USDA) 9-12

Usage

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Cultivation

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Images

Utricularia pusilla unspecified picture

Distribution

Utricularia pusilla world distribution map, present in Argentina, Belize, Bolivia (Plurinational State of), Brazil, Colombia, Costa Rica, Cuba, Dominica, Dominican Republic, Ecuador, Guatemala, French Guiana, Guyana, Honduras, Jamaica, Mexico, Nicaragua, Panama, Peru, Puerto Rico, Paraguay, Suriname, Trinidad and Tobago, and Venezuela (Bolivarian Republic of)

Conservation status

Utricularia pusilla threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:527040-1
WFO ID wfo-0000417365
COL ID 7F584
BDTFX ID -
INPN ID 733934
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Utricularia tertia Utricularia pusilla Utricularia tremula Utricularia microcarpa Utricularia leptantha Setiscapella pusilla Utricularia pusilla var. itapavensis