Common name: Bladderwort
Utricularia beaugleholei Gassin APNI* Description: Terrestrial annual or perennial herb. Stolons few, capillary, branched, tubers present or absent. Rhizoids few, capillary, simple.
Leaves sparsely rosulate and on the stolons, petiolate, linear to ovate, up to 44 mm long, 1.6 mm wide; apex acuminate or rounded. Traps few at the peduncle base and in pairs at stolon nodes; globose or ovoid, 1–4 mm long; mouth lateral with a simple dorsal appendage, and a pair off imbriate dorsal and lateral appendages.
Inflorescences solitary or several arising in succession, erect; peduncle 40–350 mm long; 0.8–2 mm thick; flowers 1–3, solitary, in an opposite pair, or in a whorl; bracts and bracteoles basifixed, with or without a slightly gibbous base; pedicels erect, 2.5–15 mm long. Calyx lobes unequal; upper lobe circular or broadly ovate, 2.5–4.5 mm long; lower lobe similar but emarginate. Corolla 8–20 mm long, dark violet with yellow streaks at base of lower lip; upper lip erect, obcordate, with lateral margins reflexed or flat; lower lip broadly or narrowly obovate, with apex rounded or obscurely 3-crenate, with 5–11 raised, radiating yellow ridges basally; spur cylindrical, shorter than lower lip.
Capsule globose, 3–8 mm long. Seeds narrowly obovoid, c. 0.8 mm long.
Flowering: September–March.
Distribution and occurrence: Occurs from south-eastern South Australia through southern and eastern Victoria to adjacent New South Wales. Grows in wet sand or clay at the margins of swamps and in roadside drains and seasonally flooded grassland.
NSW subdivisions: ST, SWS, CWS
Other Australian states: Vic. S.A.
Gassin’s (1993) circumscription of U. beaugleholei included accessions of both subsp. orientalis and subsp. beaugleholei. The two subspecies differ in corolla and upper lip size and shape. Utricularia beaugleholei differs from U. dichotoma in having 4–11 (v. 2 or 3) yellow ridges at the base of the lower lip.
Text by R.W. Jobson
Taxon concept: Australian Systematic Botany 33: 278-310 (2020).
| | Key to the subspecies | |
| 1 | Corolla lower lip broadly obovate; upper lip reflexed at 90 degrees; stolon tubers not present | subsp. beaugleholei |
| Corolla lower lip narrowly obovate; upper lip not reflexed; stolon tubers often present | subsp. orientalis |
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
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