Thomasia J.Gay

Commemorating the Swiss family Thomas, several of whom were plant collectors.

Shrubs. Leaves alternate, entire or lobed, stipules mostly 2, leaf-like. Flower clusters opposite the leaves. Bracteoles 3, often shortly fused at the base. Sepals 5, petal-like, purple to blue or white, cut to near the middle, each with 1 thickened midrib. Petals scale-like or absent. Stamens 5, free or shortly united at the base, sterile stamens, when present, 5, shorter than the fertile stamens. Ovary 3(4-5) chambered with 2 or more ovules. Fruit a valvate capsule enclosed in the enlarged dry and often coloured calyx.

Seed and cuttings.

Calyx of 5 petal-like sepals divided to about the middle and each with 1 thickened midrib.

About 32 species from Western Australia with 1 species extending to South Australia and Victoria

Source: Spencer, R. (1997). Sterculiaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 2. Flowering plants. Dicotyledons. Part 1. The identification of garden and cultivated plants. University of New South Wales Press.

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kingdom Plantae
phylum   Tracheophyta
class    Magnoliopsida
superorder     Rosanae
order      Malvales
family       Malvaceae
Higher taxa
Subordinate taxa
species         Thomasia foliosa J.Gay
species         Thomasia glutinosa Lindl.
species         Thomasia petalocalyx F.Muell.