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Genus Arabidella Family Brassicaceae

Description: Annual herb or perennial shrub, glabrous, papillose or with simple hairs.

Inflorescence racemose. Sepals erect or spreading, dimorphic. Style generally c. 1 mm long.

Siliqua linear, c. 1 mm wide; seeds finely papillose, in 1 or 2 rows, mucilaginous when wet.


Distribution and occurrence: World: 6 species, endemic Australia. Australia: all mainland States.

Text by L. Retter & G. J. Harden
Taxon concept:

 Key to the species 
1Plants shrubby; most or all leaves 2–multi-pinnatisect; inflorescence elongating2
Plant herbaceous; leaves lyrate-pinnatisect to 3-pinnatisect; inflorescence dense3
2Inflorescence a raceme; style less than 1 mm long; ovary and fruit more or less sessile, fruit linear; stem usually papilloseArabidella trisecta
Inflorescence elongating from a short corymb; style c. 2 mm long; ovary and fruit on a short gynophore, fruit linear to ellipsoid; stem glabrous
                       Back to 1
Arabidella sp. A sensu Harden (1990)
3Leaves mostly 2–3-pinnatisectArabidella nasturtium
Leaves 1-pinnatisect or lyrate-pinnatifid
                       Back to 1
4
4Plant glabrousArabidella procumbens
Plant pubescent, hairs simple
                       Back to 3
Arabidella eremigena

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