Lindley in T.L. Mitchell, Three Exped. Int. eastern Austral. 2:66 (1838). Comm_name: Annual verbine.
Synonymy: Not Applicable
Common name: None
Annual or perennial herb, 10-100 cm high, with ascending or erect quite slender branches, minutely hoary; leaves long-petiolate, 3-10 cm long, with 3 ovate or elliptic leaflets, the terminal one distant from the lateral ones and largest, 5-50 x 3-30 mm, cuneate towards the base, irregularly denticulate, minutely hoary, quite smooth above, faintly pinnately veined below, central vein ending in a mucro, brown-yellow glandular dots visible with the naked eye; stipules triangular-lanceolate, 3-4 mm, thin-leathery.
Inflorescence a 5-15 cm long raceme, flowers shortly pedicellate, ascending (also in fruit), several to many in 3's along the rhachis, longer or shorter than the upright peduncle; bract ovate-acute, c. 2 mm long, persistent; calyx campanulate, 2-3 mm long, very open in fruit, hoary, the lowest tooth rather broader and longer than the others, as long as the tube; petals blue, little longer than the calyx; standard orbicular, longest; wings shorter, obtuse; keel obtuse, shortest.
Pod usually protruding from the calyx, reniform, to 4 mm long, slightly compressed laterally, brown, distinctly wafted with brown-yellow glands, strigose-pubescent, indehiscent; seed reniform, yellow, to 3 mm.
Image source: fig. 319C in J.P. Jessop and H.R. Toelken Ed. 1986. Flora of South Australia (4th edn).|
Cunningham et al. (1982) Plants of western New South Wales, p. 408.
In flood plains of low lying areas.
All mainland States.
Flowering time: probably all year round, depending on rainfall.
SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia
Some specimens resemble P. australasica in having a slightly larger inflorescence and more pubescent flowers, but the ripe pod is always exposed and visible in P. cinerea and the calyces inflexed in flowering and fruiting stages.
Not yet available