Domin, Biblthca Bot. 89, 2:739 (1926).
Synonymy: Not Applicable
Common name: Native lucerne.
Prostrate, annual perhaps biennial or a short-lived perennial, with several radiating finally ascending herbaceous aromatic 10-50cm long stems, pubescent with strigose brown and white hairs; leaves long-petiolate, 2-7 cm long, with 3 petiolulate rhomboid-ovate or rhomboid-lanceolate leaflets, the median one on a 5-7 mm long petiolule, largest, 1-4 x 0.5-1.5 cm, irregularly denticulate, with black dots, glabrescent above, underneath with white appressed strigulose hairs mostly confined to the veins; stipules lanceolate, to 5 mm long, thin-leathery, basally striate, slightly pubescent all over with brown strigose hairs more on the margins.
Inflorescence a 2-6 cm long raceme, rhachis 1-2 cm long, densely 5-20-flowered, peduncles filiform, 5-40 x 0.5-1 mm, densely pubescent, shorter or longer than the rhachis; bract ovate-acuminate, to 3 mm long, thin-leathery, with a pubescence of long more or less dense strigose hairs; calyx cylindric-ovate, c. 4.5 mm long, on a short hairy pedicel, covered with more or less dense brown and white sericeous-strigose extrorse stout acuminate to 1 mm long hairs, green-leathery, with 10 distinct veins, 5 ending in acute tips, spotted with distinct ovate yellow-brown glands; teeth of the same height, upper 4 lanceolate, the lowest 1 triangular, the longest of all and longer than the tube; petals white, c. 1 mm shorter than the calyx and hidden in it; standard on a short claw, orbicular-cuneate, c. 3.5 x c. 2 mm; wings shorter, on a long claw, obovate, auriculate; keel shortest, clavate, obovate, purple-dotted terminally.
Pod inserted, irregularly elliptic-acute, 2.5 x 1.5 mm, laterally compressed, dotted all over with wart-like glands, pubescent with white strigose hairs more on the suture, indehiscent; seed reniform, light-brown.
Image source: fig. 320A in J.P. Jessop and H.R. Toelken Ed. 1986. Flora of South Australia (4th edn).|
on sandy plains.
W.Aust.; N.T.; Qld; N.S.W.;.
Flowering time: Aug. — Sept.
SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia
Shows similarities with P. patens in inflorescence but the long rough strigose hairs on the calyx differ from the villous hairs on the latter.
Not yet available