Skip to main content

Crotalaria ramosissima Roxb.

Reference
Fl.Ind. Ed.1832,3:268 (1832)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Spreading, hairy herb, 0.15-1 m high. Fl. yellow, Mar to Oct. Red-orange sand/clay, limestone, ironstone, sandstone. Exposed rocky areas, valleys, open sandplains, creek banks, levees, paddocks.

Amanda Spooner, Descriptive Catalogue, 20 November 2000
Image

Scientific Description

Genus Crotalaria. Form prostrate,spreading or scrambling. Habit herb. 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 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 10-25. Width (entire leaves only) Leaf width 4-8. Scale leaves length mm long NaN (?). Indumentum Presence hairy, Type simple. Stipules Presence present and persistent to older leaves, Glands with glands (?) or without glands (?), Ribs ribbed (?) or ribless (?). Length Stipule length NaN (?). Bracteoles Presence present and persistent, Indumentum hairy, Striation not striate. Length Bracteole length 2.5-3. Pedicel Presence present, Indumentum hairy. Length Pedicel length 2-3. Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 7-8. Indumentum Presence hairy, Type with simple hairs. Corolla Colour patterning uniformly coloured, Colour (when uniformly coloured) yellow, Petal claws ( the narrow base of the petals present. Length Corolla length 10-11.5. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 7-7.5. Wings Auricles not auriculate. Length Wing length 6.5-7. Keel Auricles not auriculate, Indumentum glabrous, Beak beaked. Length Keel length 6-7.5. Stamens Number ten. Anthers anther length NaN (?), Position at two different levels (filaments alternately long and short). Filaments Fusion united in an open sheath. Length Filament length 3.5-5. Ovary Placement stipitate. 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 NaN (?). 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, Indumentum type with simple hairs. Flowering time March, April, May, June, July, August, September or October. Distribution Botanical Province Northern or Eremaean, IBRA Bioregion Great Sandy Desert, Pilbara, Little Sandy Desert, Gibson Desert, Northern Kimberley, Victoria Bonaparte, Central Kimberley, Ord-Victorian-Plain, Tanami or Dampierland.

C. Hollister and K.R. Thiele, 17 April 2024

Distribution

IBRA Regions
Central Kimberley, Dampierland, Gibson Desert, Great Sandy Desert, Little Sandy Desert, Northern Kimberley, Ord Victoria Plain, Pilbara, Tanami, Victoria Bonaparte.
IBRA Subregions
Berkeley, Chichester, Fitzroy Trough, Hart, Keep, Lateritic Plain, McLarty, Mitchell, Mount Eliza, Pentecost, Pindanland, Purnululu, Roebourne, Rudall, South Kimberley Interzone, Tanami Desert.
IMCRA Regions
Canning, Kimberley, King Sound.
Local Government Areas (LGAs)
Ashburton, Broome, Derby-West Kimberley, East Pilbara, Halls Creek, Karratha, Ngaanyatjarraku, Port Hedland, Wyndham-East Kimberley.