Daviesia trigonophylla Meisn.

Scientific Description

Genus Daviesia. Form erect. Habit shrub, spindly shrub (broom-like). Stems Indumentum hairy, Pustules or glands absent, Striation (stems ribbed) not striate, Cross section flattened, Spiny on any part of plant spiny at least in part. Leaves or phylloclades Presence clearly present, Position alternate, Leaves simple, Leaves or phylloclade continuous with stem not continuous with stem, Cross section of leaf or leaflet flat with flat margins, Margins of leaf or leaflet entire, Tuberculate tubercles absent, Pustules or glands absent. Length Leaf length 5-7. Width (entire leaves only) Leaf width 2.5-3. Scale leaves length mm long NaN (?). Indumentum Presence glabrous. Stipules Presence apparently absent even from the youngest leaves, Glands with glands (?) or without glands (?), Ribs ribbed (?) or ribless (?). Length Stipule length NaN (?). Bracteoles Presence absent, Indumentum hairy (?) or glabrous (?), Striation striate (?) or not striate (?). Length Bracteole length NaN (?). Pedicel Presence present, Indumentum glabrous. Length Pedicel length 1.5-2. Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 3.5-4. Indumentum Presence glabrous. Corolla Colour patterning multicoloured, Colour (when multicoloured - choose one colour) red, orange or brown, Colour (when multicoloured - choose a second colour) red, orange or brown, Petal claws ( the narrow base of the petals present. Length Corolla length 8.5-9.5. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 7-7.5. Wings Auricles not auriculate. Length Wing length 6-6.5. Keel Auricles not auriculate, Indumentum glabrous, Beak beaked. Length Keel length 5-6. Stamens Number ten. Anthers anther length 0.4-0.5, Position at two different levels (filaments alternately long and short). Filaments Fusion free (or united at the very base). Length Filament length 4-4.5. Ovary Placement sessile or subsessile. Indumentum Presence glabrous. Style Indumentum glabrous, Bearded ( with a tuft of hairs at apex ) not bearded, Apex terete. Length Style length 5-5.5. Fruit Type dehiscent (a pod or follicle), Constriction not constricted between the seeds, Compression flat or compressed, Placement sessile or subsessile, Beak beaked. Length Fruit length 8-10. Width Fruit width 8-10. Indumentum Presence glabrous. Flowering time August or September. Distribution Botanical Province South-West, IBRA Bioregion Avon Wheatbelt, Jarrah Forest or Esperance.