Jacksonia lehmannii

Location & distribution maps

Common name:         . . .

Conservation status: . . .

Etymology:   

• The specific epithet (lehmannii) honours Lehmann

Flowers:                  

• Are scattered along the branches on a pedicel 6.5–8 mm long, with narrowly egg-shaped bracteoles 0.8–1.3 mm long on the upper part of the pedicels

• The floral tube is 0.5–1.5 mm long and the sepals are membranous, with lobes 8–11 mm long and 0.9–2 mm wide

• The standard petal is yellowish-orange with a red "eye", 5.5–8.2 mm long, the wings yellowish-orange with red markings and 6.5–8–6 mm long, and the keel red, 7.2–8.5–8.9 mm long

• The stamens have deep red filaments 5.7–8.6 mm long

• Flowering occurs from August to December

Fruit:                         

• A woody hairy, elliptical pod 8–11.7 mm long and 3.6–6.7 mm wide

Leaves:         

• These are reduced to dark brown, egg-shaped scales, 0.7–0.3 mm long and 0.7–1.4 mm wide

Stem & branches: 

• Its branches are greyish-geen, with sharply-pointed side branches

Roots:         

Habit:        

• A leafless broom-like shrub or small tree

• An erect to prostrate or spreading, spindly shrub 

• It typically grows to 0.1–1.0 m high and 0.5–1.5 m wide

Distribution:                  

• Endemic to the south-west of Western Australia

• In disjunct areas: 

  • Near Eneabba, between Maida Vale and Pinjarra

  • South of Capel in the Geraldton Sandplains, Jarrah Forest and Swan Coastal Plain bioregions 

Habitat:   

• Shrubland or woodland in sandplains on sand over laterite   

Additional notes:     

• Taxonomy

  • Jacksonia lehmannii was first formally described in 1844 by Carl Meissner in Lehmann's Plantae Preissianae from specimens collected by James Drummond near the Canning River in 1839

  • It was first described by Carl Meissner in 1844

  • It has no synonyms

Sources of information:

• https://en.wikipedia.org/wiki/Jacksonia_lehmannii (2024)