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Decaschistia byrnesii subsp. lavandulacea Fryxell

Austral.J.Bot. 22:189 (1974)
Conservation Code
Priority Three
Naturalised Status
Native to Western Australia
Name Status

Shrub, to 2 m high. Fl. blue-purple, May to Jun. Sand, alluvium, laterite. Stony hillsides, sandstone outcrops, coastal areas.

Grazyna Paczkowska, Descriptive Catalogue, 19 September 1996

Scientific Description

Herb or shrub, with hairy stems. Leaves 40-150 mm long, 70-100 mm wide, not lobed or tripartitely lobed, simply (once-)lobed; margins entire; hairy, with Simple hairs (without tubercle bases), with stellate hairswith scales absent, Sessile glands absent; stipules present but early deciduous (only visible on youngest leaves). Perianth clearly of two whorls (calyx and corolla), the corolla obvious and prominent. Pedicel present, 10-15 mm long; indumentum present, with simple hairs, with stellate hairs present, with scales absent. Epicalyx (extra segments or 'bracteoles' immediately below the calyx) present, 10-12 mm long, the lobes free, indumentum present, simple hairs (without tubercle bases) present, stellate hairs present, gland-tipped hairs absentwith scales absent, Sessile glands absent. Calyx green, 13-15 mm long, the lobes fused less than half their length, Sessile glands absent, simple hairs (without tubercle bases) present, stellate hairs present, scales absent, Terminal appendages absent, number of ribs absent. Corolla blue or purple, 35-40 mm long, glabrous. Indumentum (outside) Sessile glands absent. Staminodes absent, appendages absent. Ovary hairs and scales absent (ovary quite glabrous). Flowering time May or June. Distribution Botanical Province Northern, IBRA Bioregion North Kimberley. Conservation Code Priority Three (P3).

C. Hollister and K.R. Thiele, 11 August 2023


IBRA Regions
Northern Kimberley.
IBRA Subregions
Local Government Areas (LGAs)
Wyndham-East Kimberley.