Electronic Flora of South Australia
Electronic Flora of South Australia
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Electronic Flora of South Australia species Fact Sheet

Family: Iridaceae
Patersonia occidentalis

Citation: R. Br., Prod. Fl. Nov. Holl. 304 (1810).

Synonymy: P. longiscapa Sweet, Fl. Austr. t. 39 (1828). , Genosiris occidentalis

Common name: Long purple-flag.

Perennial to 70 cm high forming clumps or large colonies; leaves in fan-shaped clusters of 4-10, linear, acute, erect, 10-50 cm long, 2-10 mm wide, flat; finely striate, glabrous, green.

Scape 10-60 cm long, smooth, glabrous; spathe bracts elliptic to lanceolate, 3-4.5 cm long, inconspicuously veined, brownish, glabrous, with a narrow scarious margin; floral tube 2.5-3.5 cm long, villous, completely sheathed by the inner bracts; perianth blueviolet; outer segments ovate, obtuse, 2-3.5 cm long, 1.2-2 cm wide with capillary mid-veins; inner segments lanceolate, 1-2 mm long; filaments 4-6 mm long; anthers 3-6 mm long; ovary villous; style shortly exceeding or far exceeding the stamens; stigma shallowly to deeply lobed.

Capsule 1.8-2.5 cm long, acute; seeds 2-3 mm long, dark-brown; aril absent.

Published illustration: Erickson et al. (1973) Flowers and plants of Western Australia, fig. 47.

Distribution:  In heath, and in clearings within scrub and woodland, usually on poorly drained sites.

S.Aust.: MU, SL, KI, SE.   W.Aust.; Vic.; Tas.

Conservation status: native

Flowering time: Oct. — Dec.

SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia

Biology: No text

Author: Not yet available

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