Gastrolobium sericeum (Sm.) G.Chandler & Crisp

Scientific Description

Genus Gastrolobium. Form twining or climbing plants. Stems Indumentum hairy, Pustules or glands absent, Striation (stems ribbed) not striate, Cross section terete, Spiny on any part of plant not spiny. 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 or strongly incurved, appearing terete but grooved above, Margins of leaf or leaflet entire, Tuberculate tubercles absent, Pustules or glands absent. Length Leaf length 12-50. Width (entire leaves only) Leaf width 8-35. Scale leaves length mm long NaN (?). Indumentum Presence hairy, Type simple. Stipules Presence present and persistent to older leaves, Glands without glands, Ribs ribless. Length Stipule length 3. Bracteoles Presence present but early deciduous, Indumentum hairy (?) or glabrous (?), Striation not striate. Length Bracteole length NaN (?). Pedicel Presence present, Indumentum hairy. Length Pedicel length 2-2.5. Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 8.5-9. Indumentum Presence hairy, Type with simple hairs. Corolla Colour patterning multicoloured, Colour (when multicoloured - choose one colour) yellow or green, Colour (when multicoloured - choose a second colour) yellow or green, Petal claws ( the narrow base of the petals absent. Length Corolla length 15-17. Indumentum Presence absent. Standard Indumentum glabrous, Auricles auriculate. Length Standard length 15. Wings Auricles auriculate. Length Wing length 12-15. Keel Auricles not auriculate, Indumentum glabrous, Beak not beaked. Length Keel length 12-16. Stamens Number ten. Anthers anther length 0.7-1, Position at two different levels (filaments alternately long and short). Filaments Fusion free (or united at the very base). Length Filament length 11.2-15. Ovary Placement sessile or subsessile. Indumentum Presence hairy or glandular. Style Indumentum hairy or glandular towards the base, Bearded ( with a tuft of hairs at apex ) not bearded, Apex terete. Length Style length 14-15. Fruit Type dehiscent (a pod or follicle), Constriction not constricted between the seeds, Compression round in cross-section, Placement stipitate, Beak not beaked. Length Fruit length NaN (?). Width Fruit width NaN (?). Indumentum Presence hairy (?) or glabrous (?), Indumentum type with simple hairs (?) or with glandular hairs (?). Flowering time September, October, November or December. Distribution Botanical Province South-West, IBRA Bioregion Avon Wheatbelt, Jarrah Forest, Warren or Esperance.