Utricularia aff. lasiocaulis in Torrington – A new record for NSW

Utricularia aff. lasiocaulis in Torrington – A new record for NSW

Update 21 Dec 2022: This taxon has been described as U. brennanii by Jobson & Baleeiro (2022)

I discovered Utricularia aff. lasiocaulis (east coast taxon of the species complex) growing in the Torrington State Conservation Area. As far as I’m aware, this represents the first record of the species in NSW.

The species is coloured pink on the front side and tinged with orange on the reverse. The upper corolla lip is large and flared upwards. The lower corolla lip of this form has its side lobes pointed upwards. The back of the flower seemed to be hairy in some specimens but not others (not sure whether this is a mould or indumentum). The bracts are located half way up the inflorescence and feature a few bristles around the edge. The lower part of the inflorescence is covered in short indumenta. The traps feature a set of wing-like projections that is characteristic of the species complex

In the Torrington area, the species grows in seepages on the lower slopes of hills in the area. Granite outcrops and underlays force groundwater to the surface to form semi-permanent seepages in open fields. The plants were blooming at the start of May (note that the preceding summer was a la nina year so this might not be the usual flowering period). I found the plant in three different sites spread across the conservation area. The east coast form of U. lasiocaulis is better known from Cape York, extending down the QLD coast to the Sunshine Coast area.

Top – front view of U. aff lasiocaulis, Torrington
Back view of flower. The orange pigment is masked by the flash.
Trap. Note the wing-like projection near the opening.
Lower part of the inflorescence.
Note the orange coloration.
Habitat on a seepage out of underlying granite.
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