Utricularia hirta J.G.Klein ex Link

Species

Angiosperms > Lamiales > Lentibulariaceae > Utricularia

Characteristics

Terrestrial. Rhizoids few, capillary, simple. Stolons capillary, sparsely branched. Foliar organs sparsely rosulate and on the stolons, narrowly obovate-spathulate, up to 2 cm by 0.5-1 mm, apex obtuse, 1-nerved. Traps numerous on the vegetative organs, broadly ovoid, c. 0.2 mm long, stalked, mouth lateral, upper lip with a solitary multicellular subulate appendage, lower lip with radiating rows of basally connate obliquely gland-tipped processes. Inflorescence erect, 8-30 cm long, ± densely covered throughout (including the calyx and at least the spur of the corolla) with short to long septate hairs; peduncle filiform, terete; flowers 1-5, distant,; scales numerous, similar to the bracts; bracts basifixed, narrowly ovate, acute, 1-1.2 mm long; bracteoles slightly narrower and longer; additional bracts subtending dormant (inflorescence branch) buds usually present on inflorescence axis a short or very short distance above each or most of those subtending flowers; pedicels erect, capillary, terete, 1-2 mm long. Calyx lobes subequal, broadly ovate, 2-3.5 mm long, upper slightly smaller, apex obtuse, nerves raised, lower relatively broader, apex emarginate or obscurely tridentate. Corolla mauve or white, 8-10 mm long, upper lip narrowly oblong, much longer than upper calyx lobe, apex ± emarginate, lower lip larger, ± orbicular, distinctly 3-lobed, palate raised, spur subulate, acute apically curved, usually longer than and ± parallel with the lower lip. Filaments linear, curved, anther thecae distinct. Ovary ovoid, style short but distinct, stigma lower lip orbicular, upper lip much smaller, deltoid. Capsule oblong-ovoid to globose, 1.5-2.5 mm long, firm in texture, opaque, dehiscing by a longitudinal ventral marginally thickened slit. Seeds few, ± globose, c. 0.25 mm long, testa smooth, reticulate, reticulations relatively large, slightly elongate.
More
Probably perennials, terrestrial. Rhizoids capillary; stolons capillary, sparsely branched. Traps on rhizoids, stolons, and leaves, ovoid, ca. 0.2 mm, long stalked, with 1 or 2 ventral pairs of rows of gland-tipped hairs, mouth lateral; appendage 1, dorsal, subulate. Leaves few from stolons, 0.8-1.5 cm × 0.3-0.5 mm, glabrous; leaf blade narrowly obovate, membranous, 1-veined, base attenuate onto long petiole, margin entire, apex rounded. Inflorescences erect, 5-15 cm, 1-6-flowered, ± densely covered with multicellular hairs; peduncle terete, 0.2-0.5 mm thick; scales few, similar to bracts; bracts basifixed, narrowly ovate-deltoid, 0.5-1 mm. Pedicel erect, filiform, longer than bracts; bracteoles subulate, as long as or longer than bracts. Calyx lobes subequal, 1.5-2 mm, with dense hairs; lower lobe slightly larger, apex truncate to emarginate; upper lobe ovate, apex obtuse. Corolla violet or white, 4-8 mm; lower lip subcircular, base with a rounded 4-lobed swelling, apex 3-lobed; upper lip oblong from a deltoid base, apex ± emarginate; palate inside shortly pubescent; spur subulate, much longer than lower lip, apex subacute. Filaments 0.5-0.6 mm, curved; anther thecae subdistinct. Ovary ovoid; style short; stigma lower lip subcircular, upper lip much smaller and deltoid. Capsule obliquely ovoid, 1.5-2 mm, dehiscing by a single longitudinal ventral slit. Seeds ovoid, ca. 0.2 mm; testa with prominent reticulations. Fl. Sep-Nov, fr. Nov-Dec.
Life form perennial
Growth form herb
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Sexuality hermaphrodite
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JanFebMar
AprMayJun
JulAugSep
OctNovDec
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JanFebMar
AprMayJun
JulAugSep
OctNovDec
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Environment

Damp open sandy or muddy places at low altitude. Fl. Febr., July.
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Hardiness (USDA) 9-12

Usage

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Cultivation

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Distribution

Utricularia hirta world distribution map, present in Bangladesh, China, India, Cambodia, Lao People's Democratic Republic, Sri Lanka, Malaysia, Thailand, and Viet Nam

Conservation status

Utricularia hirta threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:526812-1
WFO ID wfo-0001241595
COL ID 7F5B6
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Utricularia hirta Utricularia tayloriana Utricularia hirta var. elongata